UM10729 - NXP Semiconductors
Contents
1. WHT LED1 LW E67C ip T 1 33Vg433V LEDO R23 09 l LEDO open test and 45V J14 3 K 5V 4245 output current measurement 4315 9 LEDO LEDI LEDO chet test nT LED voltage select LEDI R24 oo 43182 bolic 15142 OPEN use external voltage 18 LEDT open test and RGB_LED1 LED1 short test 1 2 internal 3 3 V 1 output current measurement k LRTB_G6SF 2 3 internal 5 V Jo LED2 R235 09 m EDIS LEDA i4192 4219 1 _ LED2 open test and o o 7 output current measurement LED3 short test 42229 HEADER 2 LED3 R26 oo O EDT External voltage input for LED supply and output current measurement J23 LED2 short test Lassior equal 20 Vilnputand 13 is apen o J24 an WHT LED2 F 5 LW E67C HEADER 2 Z4 LED4 R7 09 P LEDS R28 oo RGB_LED2 2 V for White LED LRTB_G6SF 1 V for Red LED LEDS R29 ae 2 V for Green LED t i VF 3 2 V for Blue LED Open Short test only available for LED7 R30 oa F first four channels LED 0 3 and last four channels LEd 12 15 These serial resistors R23 R38 can change to non zero value for voltage switch PCA PCUS655A in ebS devices to adjust LED output current MHT LED LED8 _R31 _09 4 Ca t K I C8 10 pF LED9 R32 00 a RGB_LED3 pj ESOS LED10 R33 _ 09 4 1 LED11__R34 _00 7 T WHT LED4 LW E67C LED12 R35 09 15a WA LED12 open test and output current measurement 4326 3 i013 ke oa 122. UM10729 PCA9955A demonstration board OM13483 Rev 1 23 July 2014 User manual Document information Info Content Keywords Fm I2C bus PCA9955A RGB and White LEDs 16 channel x 8 bit PWMs Abstract The OM13483 is an add on to 9 pin connector of the NXP I2C demo board 2005 1 or Fm I C bus development board This daughter board makes it easy to test and design with the PCA9955A a 16 channel Fast mode Plus Fm 57 mA constant current and outputs allow up to 20 V for LED supply This demo board along with the Win I2CUSB Lite GUI PC based provides an easy to use evaluation platform NXP Semiconductors UM10729 Revision history PCA9955A demonstration board OM13483 Rev Date Description 1 0 20140723 User manual initial release Contact information For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 2 of 24 NXP Semiconductors U M1 0729 PCA9955A demonstration board OM13483 1 Introduction The PCA9955A evaluation board features LEDs for color mixing blinking and dimming demonstrations A graphical interface allows the user to explore the differe
3. start wite LEDOUTX regater to tum on white LEDs stat wte LEDOUTx regeter to turn on white red LEDs Start wite LEDOUTx regster to tum on white Ble_Green LEDs Sat wte LEDOUTx regster to tum on white and RGB LEDs start wrt LEDOUTx register to tum on whte and RGB LEDs Sart wrte LEDOUT regster to tum on whte and RGB LEDs Rat wite LEDOUTx regeter to tum on white and RGB LED Kart wte LEDOUT regatear to turn on whte and RGB LEDs start wete Oh regater to program the OMBLNC 2 for bining LORe 1 for group Gmmng binkng controled by GRPPWM GRPFREQ to 80h 22SuA x 128 26 8mA per Channel Fig 8 o Po 700 D 7 s 700 300 300 300 300 400 400 400 400 6 o write PWMALL regate to set the PYV MreC0h 75 duty cycies for navida LED 2000 write GRPPVM 40h for duty cycle ON OFF ratio in 25 and GRPFREQ 00h 67m5 for bining period 2000 wrte GRPPYWM S0h for duty cycle ON OFF rato n 50 and GRPFREQ 02h 1310S for bining perod 2000 wrte GRPPWM COh for duty cycle ON OFF rate in 62 5 and GROFREQ Gsh 196m5 for blinking period 2000 write GRPPYM FFh for Cuty cycle ON OFF ratio m 75 and GRPFREQ 06h 262 mS for bining perod O West ae Yes Yes Yes Yes Yes Yo Yes Ye Yes ve Yes Ye ves Yes Send Sequenxe Send Continuously TETI 97 0809 30 24 22 13 14 15 96 17 38 29 20 21 22 23 Herdege Vetere Or SOO Message data in Expert mode to demonstrate all White and RGB LEDs for blinking aaa 013956
4. UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 15 of 24 NXP Semiconductors U M1 0729 PCA9955A demonstration board OM13483 8 2 Test of LED open or short error detection The PCA9955A can detect an LED open or short condition at its open drain LED outputs Users recognize these faults by reading the status of a pair of error bits ERRx in error flag registers EFLAGn for each channel The user can poll the ERROR status bit bit 6 in MODE2 register to check if there is a fault condition in any of the 16 channels The EFLAGn registers can then be read to determine which channels are at fault and the type of fault in those channels 1 Copy the PCA9955A Open or Short test text file as shown below From the File drop down menus select Open and from the open data file window select the PCA9955A Open or Short test text file Expert Mode Data File 0 Write Yes 5 06 Comments software reset 2 Write Yes 0 98 80 80 Comments set current to 50 of max in IREFO IREF1 2 Write Yes 50 02 05 Comments set LEDO and LED1 are fully ON 2 Write Yes 1 01 11 Comments Clear all error status bits in EFLAGn registers by W riting bit4 1 in MODE2 2 Read Yes 0 01 Comments read ERROR status bit6 in MODE2 2 Write Yes 0 46 Comments set EFLAGO register address 2 Read Yes 0 00 Comments
5. TPA t 1 2 9 pin female connector u 3 3 V R2_ lo LED_MAX 38 25 mA 3 4 ii R3 R i to from 12C 2005 1 board 5 6 10k 1 1kQ 1 1kQ CON2 15kQ SPI_SCLK SCL Filter H1206N101R 10 yy R6_ lo_LED_MAX 28 6 mA JUMPER 3x2 SPLSO SDA Filter 2kQ LED max ouput current setting u1 N a A 1 2 gt Rext 1 KQ 57 3 mA 225 pA x 255 RESET 33 J4 open no PU close to Vpp pin c1 c2 SPI_CSN 3 4 gt Rext 4 5 KO 38 25 mA 150 JA 255 PCU PCA9955A f for PCU9955A e277 nn joes SCL SPI_SCLK 5 Pins 5 9 to from the 5 6 gt Rext 2 KQ 28 6 mA 112 5 A x 255 o ok 2 VDDIN c Spin Male Spi master device ADO R709 SDA Filter open fo measure Sg SPI SDI_7 F VBEN 37 ADO ADT Re 00 SCL Fiter the Utcurent c4 2 ro vi E aall 4 E IN R0 __00 1 Aba i Zo HTA 1kQ R11 31 6 kO 5 6 LEDO LED15 J I 8 1 a 9 pin female a ee 8 et i rT Ul y D1 1 J8 Pins 5 9 to from R12 __ 34 8 kQ 4 2 gt force reset x LTST C170GKT the 2nd SPI slave o 2 1 PCA9955A Ris m TUMPER Open gt normal 4 E lt GreenLeDfor Apt z enio board E ir Vpp indicator 1 lt ee 1 2 normal 12C or SPI addressable 5 pin male connector to from i m 2 3 SPI daisy chain bus controller PCU9669 mini board J9 AD1 A to drive PCA PCU9955A R14 09 1 z CON4 CON3 R15 31 6 kQ 5 6 1 24 V 7 a T R16 34 8 kQ z 5V i 9 10 R17 oQ Thermal pad 5 5 x 2 2 mm o a ar F SPI_SDO HEADER 5x2 add thermal vias 5 x 2 10 uF z Short 9 10
6. LED Blinkers and Dimmers Master Selector 2 to 1 demux Multiplexers Switches Non volatile Registers RAM FRAM Real Time Clocks Thermal Management Universal Modes File Edit Device Options Window Help JAWS oR oe MOR mane o Stop Delay Notes aaa 009622 Fig 7 Drop down menu selection for Expert mode Connect the hardware as described in Section 4 All jumpers are in default setting and device address is set to 0x02 on J7 J9 and J10 set AD 0 2 GND for PCA9955A demo board When you have correctly installed the software and the demonstration board hardware is connected and recognized by the computer start the Win I2CUSB Lite UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 13 of 24 NXP Semiconductors U M1 0729 PCA9955A demonstration board OM13483 software As shown in Figure 7 when the demonstration board hardware is correctly connected to the USB port and the computer recognizes it the message Hardware Detected is displayed on the bottom of the window Switched 3 3 V and 5 0 V power supplies are controlled through the Options menu or by double clicking the 3 3 V or 5 0 V symbols on the bottom of the window Power supplies are disabled by default and must be enabled before using the 12C bus devices on the board 2C bus frequency is controlled through
7. Read EFLAGO status bit1 0 for LED 0 and bit 3 2 for LED1 error status 2 Write Yes 1 01 11 Comments Clear all error status bits in EFLAGn registers by writing bit4 1 in MODE2 2 Write Yes 0 98 00 00 Comments set output current to zero in IREFQ IREF1 Seqguence 01 02 03 04 05 06 07 08 09 2 After opening the PCA9955A Open or Short test text file the Win I2CUSB GUI in Expert mode screen will be displayed as shown in Figure 9 3 Click the Send All button All the valid messages on the screen is sent in order of the row number Msg The action is performed one time 4 To verify the read data on message line 5 for ERROR status and line 7 for EFLAG status 5 To open the J12 and J16 for open circuit test on LEDO and LED1 repeat steps 3 and 4 to find the error report in message line 5 and line 7 6 To short the J15 and J17 for short circuit test on LEDO and LED1 repeat steps 3 and 4 to find the error report in message line 5 and line 7 UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 16 of 24 NXP Semiconductors U M1 0729 PCA9955A demonstration board OM13483 2 3 4 5 6 7 q 8 Wrte 01 11 Yes 1 9 Werte 98 00 00 Yes O set j _ ett Sead Sequence Send Continuous Actve Msg 9 01 02 03 04 05 06 07 08 09 ae s aaa 01
8. 86 C0 03 Yes 2000 write GRPPWM FFh for ON OFF ratio in 75 and ST oo ce St SHY ss aE IC E E ST 02 Write 81 01 Yes 0 set linear curve sT o2 Write 82 05 05 05 05 Yes Set LDR O tu whteeredtEDoN o o 6 ST 02 Write A8 C1 47 C9 78 00 00 00 00 00 00 00 00 00 00 00 00 33 33 00 00 00 Yes 1 set group0 in continuous mode IREF_GRP 120x225 271 G2 vae AAE E E E P IE ase anh en RaT BAD EANES E A gt ST 00 Write 06 Yes 0 write SW reset OST 02 Write ST 02 Write 11 11 11 11 Yes 0 set LDR 01 turn white amp LED ON ST 02 Write ST 02 Write 45 01 Yes 8200 set IREFALL not 0 to enable LED outputs ST ooo we lls ie ML N E R ST 02 Write 81 05 Yes 1 set exponential curve OST o2 write B2444 yes O Se LDR O tum whte amp bue LEDON SE 02 Write C1 47 C9 78 00 00 00 00 00 00 00 00 00 00 00 00 99 99 00 00 00 Yes 1 set ip in continuous mode IREF_GRP 240x225 27 60 st sT o2 weee en ee ee ee ST 00 Write 06 Yes 0 write SW reset dM Send All Send Sequence _ Send Continuously Double click on the des TEE thease Active Msg 1 Idle 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Transmission successful USB I2C Hardware Detected 1000 kHz aaa 014228 Fig 11 Message data in Expert mode to demo all White and RGB LEDs for blinking and gradation UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 201
9. and RGB LEDS occire irteeraren g E anced 14 Test of LED open or short error detection 16 PCA9955A evaluation steps with Fm development board ssssasnsn 18 PCA9955A blinking and gradation demo for all LEDS 2 03 iGo ee vay cenit ceka te sai eed 19 S HOT saeia ae hones inns a oaa 22 Abbreviations 00 2000e sees 22 References 2000s eee ee eee eee 22 Legal information 00 eeeeeeee 23 Definitions 2 0000 eee 23 Disclaimers 002200 cece eee eee 23 Trademarks 0000200 eee eee eee 23 CONES eins deceit ei eee aed 24 Please be aware that important notices concerning this document and the product s described herein have been included in section Legal information NXP Semiconductors N V 2014 All rights reserved For more information please visit http Avww nxp com For sales office addresses please send an email to salesaddresses nxp com Date of release 23 July 2014 Document identifier UM10729
10. for blinking period 02 Write Yes 2000 86 80 01 Comments write GRPPWM 80h for duty cycle ON OFF ratio in 50 and GRPFREQ 02h 131 ms for blinking period 02 Write Yes 2000 86 A0 02 Comments write GRPPWM C0h for duty cycle ON OFF ratio in 62 5 and GRPFREQ 04h 196 ms for blinking period 02 Write Yes 2000 86 C0 03 Comments write GRPPWM FFh for duty cycle ON OFF ratio in 75 and GRPFREQ 06h 262 ms for blinking period 00 Write Yes 0 06 Comments SW reset Sequence 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 3 After opening the PCA9955A WHT_RGB LEDs blinking demo i2c address 0x02h text file the Win I2CUSB GUI in Figure 8 Expert mode screen will be displayed as shown in 4 Click the Send All button All the valid messages on the screen is sent in order of the row number Msg The action is performed one time Mp file Edit Device Options Window Help wte PEAU Wte 82 30 10 10 10 Wte 62 01 01 01 01 Wree 82 40 40 40 40 Werte 2 01 00 00 00 Wree 62 00 05 00 00 Wrte 82 10 40 01 04 verre 62 04 10 40 03 Wree 62 01 40 10 04 Vree BIL2LFFFF FEAF J2u 2022 Boe A Stat wete LEDOUTs register to tum on whte LEDs Sart wte LEDOUTx regeter to turn on red LEDs Sat wrke LEDOUTs regster to tum on wht LEDS Sat arte LEDOUTx regater to turn on green LEDs Rat wte LEDOUTs regater to tum on wite LEDS Sat wte LEDOUTx regeter to turn on btje LEDS
11. give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information 13 2 Disclaimers Limited warranty and liability Information in this document is believed to be accurate and reliable However NXP Semiconductors does not give any representations or warranties expressed or implied as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information NXP Semiconductors takes no responsibility for the content in this document if provided by an information source outside of NXP Semiconductors In no event shall NXP Semiconductors be liable for any indirect incidental punitive special or consequential damages including without limitation lost profits lost savings business interruption costs related to the removal or replacement of any products or rework charges whether or not such damages are based on tort including negligence warranty breach of contract or any other legal theory Notwithstanding any damages that customer might incur for any reason whatsoever NXP Semiconductors aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of NXP Semiconductors Right to make changes NXP Semiconductors reserves the right to make changes to in
12. the Options menu or by double clicking the frequency symbol on the bottom of the window 8 1 PCA9955A blinking demo for all White and RGB LEDs 1 From the Device drop down menus select Universal Modes and from the subsequent drop down menu select Expert Mode as shown in Figure 7 2 Copy the PCA9955A WHT_RGB LEDs blinking demo i2c address 0x02h text file as shown below From the File drop down menus select Open and from the open data file window select the PCA9955A WHT_RGB LEDs blinking demo i2c address 0x02h text file Expert Mode Data File 0 Write Yes 0 06 Comments SW reset 2 Write Yes 0 45 80 Comments write IREFALL to 80h 225 uA x 128 28 8 mA per channel 02 Write Yes 500 82 01 01 01 01 Comments start write LEDOUTx register to turn on white LEDs 02 Write Yes 700 82 04 04 04 04 Comments start write LEDOUTx register to turn on red LEDs 02 Write Yes 500 82 01 01 01 01 Comments start write LEDOUTx register to turn on white LEDs 02 Write Yes 700 82 10 10 10 10 Comments start write LEDOUTx register to turn on green LEDs 02 Write Yes 500 82 01 01 01 01 Comments start write LEDOUTx register to turn on white LEDs 02 Write Yes 700 82 40 40 40 40 Comments start write LEDOUTx register to turn on blue LEDs 2 Write Yes 300 82 01 00 00 00 Comments start write LEDOUTx register to turn o white LEDs 2 Write Yes 300 82 00 05 00 00 Comments start write LEDOUTx re
13. 0 81 01 Comments set linear curve 05 05 Comments set LDR 01 turn white amp red LED ON C9 78 00 00 00 00 00 00 00 00 00 00 00 00 33 33 00 00 00 t group0 in continuous mode IREF_GRP 120x225 27mA ua per step ramp up dn time 3 9s amp hold on off 0 25s Comments set IREFALL not 0 to enable LED outputs ts write SW reset ments set exponential curve 11 11 Comments set LDR 01 turn white amp green LED ON C9 78 00 00 00 00 00 00 00 00 00 00 00 00 55 55 00 00 00 t group0 in continuous mode IREF_GRP 240x225 27mA 60 step 64ms amp 450ua per step ramp up dn time 3 9s amp hold on off 0 25s Comments set IREFALL not 0 to enable LED outputs ts write SW reset ments set exponential curve 41 41 Comments set LDR 01 turn white amp blue LED ON C9 78 00 00 00 00 00 00 00 00 00 00 00 00 99 99 00 00 00 00 03 Comments set group0 in continuous mode IREF_GRP 240x225 27mA 60 step 64ms amp 450ua per step ramp up dn time 3 9s amp hold on off 0 25s Comments set IREFALL not 0 to enable LED outputs 0 Write Yes 0 06 Comments write SW reset 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 After opening the PCA9955A WHT_RGB LEDs blinking amp gradation demo i2c address 0x02h text file the NXP Fm Board GUI in Expert mode screen is displayed as shown in Figure 11 order of the row number All information provided in this document i
14. 04 04 04 Comments start write LEDOUTx register to turn on red LEDs 2 Write Yes 500 82 01 01 01 01 Comments start write LEDOUTx register to turn on white LEDs 2 Write Yes 700 82 10 10 10 10 Comments start write LEDOUTx register to turn on green LEDs 2 Write Yes 500 82 01 01 01 01 Comments start write LEDOUTx register to turn on white LEDs 2 Write Yes 700 82 40 40 40 40 Comments start write LEDOUTx register to turn on blue LEDs 2 Write Yes 300 82 01 00 00 00 Comments start write LEDOUTx register to turn on white LEDs 2 Write Yes 300 82 00 05 00 00 Comments start write LEDOUTx register to turn on white red LEDs 02 Write Yes 300 82 00 00 51 00 Comments start write LEDOUTx register to turn on white Blue_Green LEDs 02 Write Yes 300 82 00 00 00 55 Comments start write LEDOUTx register to turn on white and RGB LEDs 4 10 Comments start write LEDOUTx register to turn on white and RGB LEDs 1 04 Comments start write LEDOUTx register to turn on white and RGB LEDs 02 Write Yes 400 82 04 10 40 01 Comments start write LEDOUTx register to turn on white and RGB LEDs 02 Write Yes 400 82 01 40 10 04 Comments start write LEDOUTx register to turn on ite and RGB LEDs te Yes 0 81 21 FF FF FF FF Comments start write Olh register to program the BLNK 1 for blinking LDRx 11 for group dimming blinking controlled by GRPPWM GRPFREQ te Yes 0 44
15. 2 PCA9955A demo board a OM13483 D 5 9 pin connector Select Bus 1 Bridge board to drive PCA9955A OM13399 Fm development board OM13260 aaa 014227 PCA9955A demo board OM13483 mounting to the Fm development board OM13260 Fig 2 UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 6 of 24 NXP Semiconductors UM10729 UM10729 PCA9955A demonstration board OM13483 4 4 OM13483 connection to Win I2CUSB hardware adapter board The Win l2CUSB board should be disconnected from your PC before connecting the OM13483 board on to it The OM13483 board has a 14 pin male connector CON4 that connects to the 14 pin male connector J1 on the Win I2CUSB board as shown in Figure 3 Connect the OM13483 board to the Win I2CUSB board before connecting the USB cable Once the board is connected connect the USB cable and start the Win I2CUSB Lite software You are now ready to evaluate the PCA9955A ee e a 5 CUL Wee Bee ro aaa 013954 Fig 3 _PCA9955A demo board OM13483 connecting to the Win IZCUSB board All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 7 of 24 NXP Semiconductors U M1 0729 PCA9955A demonstration b
16. 2 LED12 short test 1282 LED13 open test and RGB_LED4 LED13 short test output current measurement R LRTB_G6SF LED14 R37 00 13292 4 330 9 LED14 open test and TepPsionieat output current measurement LED15 R380 A Jo 1 LED15 open test and output current measurement a 2 242242242 42 S332 eD14 shortest co Tero Jen Terz C13 1014 7015 Teie Te17 Teie Tero Tezo Tez21 Te22 T23 Tet a 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF 0 1 nF Ea eS ES eS eS Ss SS ES ea ee aaa 013944 PCA9955A demo board schematic part B ESVELINO Pjeog uonesuowap VWSGS66V9d SJOJONPUODIWIIS dXN 6cZOLINN NXP Semiconductors U M1 0729 PCA9955A demonstration board OM13483 7 OM13483 demonstration board main components Table 2 OM13483 demo board main components Device Description Address LED Location PCA9955ATW 16 channel Fm 2C bus Ox02h for I2C demo board U1 57 mA 20 V constant current default setting LED driver PRTR5VOU2AX _ ESD protection diode U2 LW E67C White LED 4 white LEDs WHT_LED 1 4 LRTB_G6SG RGB LED 4 RGB LEDs RGB_LED 1 4 LTST C170GKT Green LED for PCA9955A 1 green LED D1 power supply either 3 3 V or 5 V indicator 8 PCA9955A evaluation steps The PCA9955A is controlled by Win I2CUSB GUI in Expert mode as shown in Figure 7 Win I2CUSB File Device Options Window Help EEPROM VO Expanders
17. 3957 Fig 9 Example of Open or Short circuit test for LEDO and LED1 UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 17 of 24 NXP Semiconductors U M1 0729 PCA9955A demonstration board OM13483 9 PCA9955A evaluation steps with Fm development board UM10729 The PCAQ955A is controlled by Fm development board GUI in Expert mode as shown in Figure 10 NXP Fm Board GUL m or I O Expanders LED Blinkers and Dimmers Master Selector 2 to 1 demux Multiplexers Switches Non volatile Registers Real Time Clocks Thermal Management 12C BUS 2 Expert Mode 12C BUS 1 PULL UP 12C BUS 1 RESISTORS NXP Fm Board GUI C Expert Mode scone __X File Edit Device Options Window Help amp x BAHO t raD Msg Start Address R W Data Stop Additional Notes Delay Led ST if 2 ST 3 ST 4 ST 5 ST 6 ST 7 ST 8 ST lt uy Send Message Send All Send Sequence Send Continuously Active Msg 00 Ide Transmission successful US8 I2C Hardware Detected 1000 kHz aaa 013569 Fig 10 Select the Expert mode from Fm development board GUI Connect the hardware as described in Section 4 3 All jumpers are in default setting and device address is set to 0x02 on J7 J9 and J10 set AD 0 2 GND for PCA9955A demo board When you have correctly installed th
18. 4 21 of 24 NXP Semiconductors U M1 0729 PCA9955A demonstration board OM13483 10 Support For support send an e mail to i2c support nxp com 11 Abbreviations Table 3 Abbreviations Acronym Description ESD ElectroStatic Discharge Fm Fast mode Plus GUI Graphical User Interface 2C bus Inter Integrated Circuit bus IC Integrated Circuit LED Light Emitting Diode PC Personal Computer PWM Pulse Width Modulator RAM Random Access Memory RGB Red Green Blue RGBA Red Green Blue Amber SMBus System Management Bus USB Universal Serial Bus 12 References 1 _PCA9955A 16 channel Fm I2C bus 57 mA 20 V constant current LED driver Product data sheet NXP Semiconductors www nxp com documents data_sheet PCA9955A pdf 2 UM10206 I2C Demonstration Board 2005 1 Quick Start Guide NXP Semiconductors www nxp com documents user_manual UM10206 pdf UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 22 of 24 NXP Semiconductors UM10729 13 Legal information PCA9955A demonstration board OM13483 13 1 Definitions Draft The document is a draft version only The content is still under internal review and subject to formal approval which may result in modifications or additions NXP Semiconductors does not
19. C0 Comments write PWMALL register to set the PWMx C0h 75 duty ycles for individual LED te Yes 2000 86 40 00 Comments write GRPPWM 40h for duty cycle ON OFF ratio in 25 and GRPFREQ 00h 67mS for blinking period te Yes 2000 86 80 01 Comments write GRPPWM 80h for duty cycle ON OFF ratio n 50 and GRPFREQ 02h 131mS for blinking period te Yes 2000 86 A0 02 Comments write GRPPWM C0h for duty cycle ON OFF ratio in 62 5 and GRPFREQ 04h 196mS for blinking period W Q fiss All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 19 of 24 NXP Semiconductors UM10729 UM10729 2 Write Yes 2000 86 C0 2 Write Yes 0 82 05 05 2 Write Yes 1 A8 C1 47 00 03 Comments se 60 step 64ms amp 45 02 Write Yes 8200 45 01 00 Write Yes 0 06 Commen 02 Write Yes 1 81 05 Con 02 Write Yes 0 82 11 11 02 Write Yes 1 A8 C1 47 00 03 Comments se 02 Write Yes 8200 45 01 00 Write Yes 0 06 Commen 02 Write Yes 1 81 05 Com 02 Write Yes 0 82 41 41 02 Write Yes 1 A8 C1 47 2 Write Yes 8200 45 01 Seqguence 01 02 03 04 05 PCA9955A demonstration board OM13483 03 Comments write GRPPWM FFh for duty cycle ON OFF ratio in 75 and GRPFREQ 06h 262 mS for blinking period 0 Write Yes 0 06 Comments write SW reset 2 Write Yes
20. GB_LED 1 4 e TP2 and TP3 are GND pins for probing use e TP1 can be connected as external reset signal to RESET pin when J6 is open TP4 can be connected as external output enable signal to OE pin for blinking dimming control when J11 is open e All jumpers default setting and function as shown in Table 1 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 8 of 24 NXP Semiconductors UM10729 PCA9955A demonstration board OM13483 Table 1 Jumper settings for test and evaluation Jumper Default setting Comment J1 1 2 This jumper is used to select Vpp for PCU PCA9955A 3 pin Voo 5 V 1 2 select 5 V 2 3 select 3 3 V J2 1 2 This 3 x 2 jumper is used to select REXT pin 1 value for PCU PCA9955A 3 x 2 pin REXT 1 kQ 1 2 select REXT 1 kQ and maximum output current is 57 3 mA I MA Armax 3 4 select REXT 1 5 KQ and maximum output current is 38 25 mA 5 6 select REXT 2 kQ and maximum output current is 28 6 mA J3 Short Short external 1 1 KQ pull up resistor for SDA on PCA9955A 2 pin Open no external pull up resistor for SDA on PCA9955A Remark No external pull up resistor required for PCU9955A J4 Short Short external 1 1 KQ pull up resistor for SCL on PCAQ955A 2 pin Open no external pull up resistor for SCL on PCA9955A Remark N
21. V 2014 All rights reserved User manual Rev 1 23 July 2014 9 of 24 NXP Semiconductors UM10729 PCA9955A demonstration board OM13483 Table 1 Jumper settings for test and evaluation continued Jumper Default setting Comment J12 J16 Short These jumpers are used to open the WHT_LED1 or RGB_LED1 J12 to control White LED J19 J22 J16 to control Red LED J19 to control Green LED J22 to control Blue LED 2 pin Open connected the current meter to measure one of the LEDs output current or open one of the LEDs outputs for detecting an LED open condition in one of EFLAGn registers Short normal operation for WHT_LED1 and RGB_LED1 J13 1 2 This jumper is used to select LED supply voltage 3 pin Vlen 3 3 V 4 2 select 3 3 V for all LEDs supply voltage 2 3 select 5 V for all LEDs supply voltage Open no jumper select external voltage from J20 lt 20 V and J24 GND J14 J18 Open These jumpers are used to merge the LED 0 2 outputs together for driving higher LED 2 pin current Open normal operation for the LED 0 2 Short When short J14 J18 and open J16 J19 to combine LED 0 2 outputs to drive LEDO When short J14 only and open J16 to combine LED 0 1 outputs to drive LEDO J15 J17 Open These jumpers are used to short the WHT_LED1 or RGB_LED1 J15 to control White LED J21 J23 J17 to control Red LED J23 to control Green LED J21 to control Blue LED 2 pin Ope
22. d from your PC before mounting the OM13483 board on to it The OM13483 board has a 9 pin female connector CON2 that connects to the JP1 male connector on the 12C demo board 2005 1 as shown in Figure 1 With both boards facing you and with USB connector on the right hand side as shown in Figure 1 connect the OM13483 board to the 12C demo board 2005 1 before connecting the USB cable Once the board is connected connect the USB cable and start the Win lI2CUSB Lite software You are now ready to evaluate the PCA9955A All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 4 of 24 NXP Semiconductors U M1 0729 PCA9955A demonstration board OM13483 aaa 013953 Fig 1 _PCA9955A demo board OM13483 mounting to the I2C demo board 2005 1 OM6275 UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 5 of 24 UM10729 NXP Semiconductors PCA9955A demonstration board OM13483 4 3 OM13483 connection to Fm 12C bus development board The OM13260 Fm I2C bus development board should be disconnected from your PC before mounting the OM13483 board onto it The OM13483 board has a 9 pin female connector CON2 that connects to the CN2 male connector on the bridge board OM13399 as shown in Figure
23. e software and the demonstration board hardware is connected and recognized by the computer start the Fm development board software As shown in Figure 10 when the demonstration board hardware is correctly connected to the USB port and the computer recognizes it the message USB Il2C Hardware Detected is displayed on the bottom of the window All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 18 of 24 NXP Semiconductors UM10729 UM10729 PCA9955A demonstration board OM13483 9 1 PCA9955A blinking and gradation demo for all LEDs 1 From the Device drop down menus select Expert Modes as shown in Figure 10 2 Copy the PCA9955A WHT_RGB LEDs blinking amp gradation demo i2c address 0x02h text file as shown below From the File drop down menus select Open and from the open data file window to select the PCA9955A WHT_RGB LEDs blinking amp gradation demo i2c address Ox02h text file Expert Mode Data File 02 Write Yes 400 82 40 01 02 Write Yes 400 82 10 40 2 Wri 2 Wri 2 Wri 2 Wri 2 Wri 00 Write Yes 0 06 Comments SW reset 02 Write Yes 0 45 80 Comments write IREFALL to 80h 225uA x 128 28 8mA per channel 02 Write Yes 500 82 01 01 01 01 Comments start write LEDOUTx register to turn on white LEDs 02 Write Yes 700 82 04
24. for SPI addressable mode 0 28 mm diameter with 1 mm pitch 5 pin Male or last slave device in SPI daisy chain with the barrel plated to about 1 0 ounce copper LED 0 15 2 HEADER 7x2 8M J10 AD2 LED 0 15 5 All R18 oa 2 Quinary input pad connection to AD 2 0 14 pin header connector to from R19 31 6 kQ Open gt floating Win I2CUSB 12C master to drive i jee VED PCA9955A demo board R20 34 8 kQ 3 4 gt pull up 5 6 gt pull down R21 0 Q 7 8 gt GND GND 1 SPI_CSN HEADER 5x2 i eno jj short 9 10 for SPI mode Ext OE input TP2 TP3 TP4 L2 BLM18BD471SN1 SDA SDA filter R22 25 01 14 2 LED output control L3 7 10 KQ Open gt Output disabled BLM18BD471SN1 Short gt Output enabled SCL EE it SCL filter gt 470 Q at 100 MHz ene aaa Fig 5 PCA9955A demo board schematic part A 9 neways ESVELINO p1eo0q uonesuowap VWSS66V9d 6cZOLINN SJOJONPUODIWIIS dXN jenuew sn poz Aine ez L Aey osip jea 0 2 fqns s JUaLUNDOP siy Ul PAPIAO d UOIPELUJOJU Iy bZ 0 ZL 62Z0LWN 2 D F Pamasa SIY H II Y LOZ A N SIOONPUOTIWAS AXN F LeDpo 15 ELS ig 6 4 white and 4 RGB LEDs connect to PCU PCA9955A 16 channel outputs The LEDs supply voltage can be selected either internal 3 3 V 5 V or external up to 20 V
25. formation published in this document including without limitation specifications and product descriptions at any time and without notice This document supersedes and replaces all information supplied prior to the publication hereof Suitability for use NXP Semiconductors products are not designed authorized or warranted to be suitable for use in life support life critical or safety critical systems or equipment nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury death or severe property or environmental damage NXP Semiconductors and its suppliers accept no liability for inclusion and or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and or use is at the customer s own risk Applications Applications that are described herein for any of these products are for illustrative purposes only NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products and NXP Semiconductors accepts no liability for any assistance with applications or customer product UM10729 All information provided in this document is subject to legal disclaimers design It is customer s sole responsibility
26. gister to turn o white red LEDs 2 Write Yes 300 82 00 00 51 00 Comments start write LEDOUTx register to turn o white Blue_Green LEDs 2 Write Yes 300 82 0 0 00 55 Comments start write LEDOUTx register to turn o white and RGB LEDs 2 Write Yes 400 82 40 01 04 10 Comments start write LEDOUTx register to turn o white and RGB LEDs 2 Write Yes 400 82 10 40 01 04 Comments start write LEDOUTx register to turn o white and RGB LEDs 02 Write Yes 400 82 04 10 40 01 Comments start write LEDOUTx register to turn on white and RGB LEDs 02 Write Yes 400 82 01 40 10 04 Comments start write LEDOUTx register to turn on ite and RGB LEDs W e UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 14 of 24 NXP Semiconductors UM10729 PCA9955A demonstration board OM13483 02 Write Yes 0 81 21 FF FF FF FF Comments start write 01h register to program the DMBLNK 1 for blinking LDRx 11 for group dimming blinking controlled by GRPPWM GRPFREQ 02 Write Yes 0 44 C0 Comments write PWMALL register to set the PWMx C0h 75 duty cycles for individual LED 02 Write Yes 2000 86 40 00 Comments write GRPPWM 40h for duty cycle ON OFF ratio in 25 and GRPFREQ 00h 67 ms
27. l prevail in case of any discrepancy between the translated and English versions 13 3 Trademarks Notice All referenced brands product names service names and trademarks are the property of their respective owners 2C bus logo is a trademark of NXP Semiconductors N V NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 23 of 24 NXP Semiconductors UM10729 14 Contents PCA9955A demonstration board OM13483 3 1 3 2 3 3 3 4 4 1 4 2 4 3 4 4 9 1 10 11 12 13 13 1 13 2 13 3 14 Introduction 000 eee eee eee 3 Features oaan ds tiene Yen eee ee es 3 Getting started 002 cee eee eee 3 ASSUMDPIUIONS isch bd ee ee ee be eed 3 Static handling requirements 3 Minimum system requirements 3 Power requirements 205 3 Installation 3266 5 e066 eee eee ete ees 4 12C demo board 2005 1 and Win I2CUSB Lite SONWALE ie e nasa eld abbas Epa ede GA 4 OM13483 connection to I2C demo board 2005 1 4 OM13483 connection to Fm l2C bus development board 6 OM13483 connection to Win I2CUSB hardware adapter board 7 Hardware description 00 00eees 8 SchemMati c cece eee cee cies cee ee ees 11 OM13483 demonstration board main components 0 0 00 cee eee eee 13 PCA9955A evaluation steps 13 PCAQ955A blinking demo for all White
28. n normal operation for WHT_LED1 and RGB_LED1 Short to short one of the LEDs output for detecting an LED short condition in one of EFLAGn registers J20 20 V input External lt 20 V input for LEDs supply voltage The J13 is open to supply this lt 20 V 2 pin voltage to all LEDs J24 GND External GND input for LEDs supply voltage 2 pin J25 J27 Short These jumpers are used to open the WHT_LED4 or RGB_LED4 J29 J31 J25 to control White LED J27 to control Red LED J29 to control Green LED J31 to control 2 pin Blue LED Open connect current meter to measure one of the LEDs output current or open one of the LEDs outputs for detecting an LED open condition in one of EFLAGn registers Short normal operation for WHT_LED4 and RGB_LED4 J26 J28 Open These jumpers are used to short the WHT_LED4 or RGB_LED4 J30 J32 J26 to control White LED J28 to control Red LED J32 to control Green LED J30 to control 2 pin Blue LED Open normal operation for WHT_LED4 and RGB_LED4 Short to one of the LEDs for detecting an LED short condition in one of EFLAGn registers CON1 9 pin male This 9 pin connector is used to daisy chain to next I C bus slave device or demo board connector CON2 9 pin female This 9 pin connector is used to connect to Fm 12C development board or 12C 2005 1 connector evaluation board as master device to drive this demo board CON3 5 pin male This 5 pin connector is used to connect to the PCU9669 or PCA9665 mini board as I C b
29. nt functions of the driver easily The board can be connected in series with other 12C demo boards to create an evaluation system The IC communicates to the host via the industry standard C bus SMBus port The evaluation software runs under Microsoft Windows PC platform 2 Features e A complete evaluation platform for the PCA9955A 16 channel Fm 2C bus constant current LED driver e Easy to use GUI based software demonstrates the capabilities of the PCA9955A e On board four white and four RGB LEDs for visual experience e Convenient test points for easy scope measurements and signal access e USB interface to the host PC e No external power supply required 3 Getting started 3 1 Assumptions Familiarity with the 1 C bus is helpful but not required 3 2 Static handling requirements CAUTION This device is sensitive to ElectroStatic Discharge ESD Therefore care should be taken during transport and handling You must use a ground strap or touch the PC case or other grounded source before unpacking or handling the hardware 3 3 Minimum system requirements e PC Pentium 60 processor or equivalent 8 MB RAM 10 MB of hard drive space e One USB port either 2 0 or 1 1 compatible Windows 98SE ME 2000 XP or Vista e 2C demonstration board 2005 1 OM6275 or Win I2CUSB board from www demoboard com 3 4 Power requirements The NXP demonstration board 12C 2005 1 and OM13483 hardware obtain power f
30. o external pull up resistor required for PCU9955A J5 Short Short connect Vpp pin 28 to PCU PCA9955A 2 pin Open connect current meter to measure the Ipp on PCU PCA9955A J6 Open Short force RESET pin 25 to GND 2 pin Open 10 kQ pull up RESET pin 25 to Vpp J7 7 811 This 4 x 2 jumper is used to select quinary input value for ADO pin 2 4 x 2 pin Open floating 1 2 select Vpp 3 4 select pull up with 31 6 kQ 5 6 select pull down with 34 8 kQ 7 8 select GND J8 1 2 This jumper is used to select bus mode 3 pin 1 2 select normal 12C or SPI addressable bus mode 2 3 select SPI daisy chain bus mode J9 7 81 This 5 x 2 jumper is used to select quinary input value for AD1 pin 3 5 x 2 pin Open floating 1 2 select Vpp 3 4 select pull up with 31 6 kQ 5 6 select pull down with 34 8 kQ 7 8 select GND 9 10 SDO Serial Data Out for SPI addressable mode or last slave device in SPI daisy chain J10 7 81 This 5 x 2 jumper is used to select quinary input value for AD2 pin 4 5 x 2 pin Open floating 1 2 select Vpp 3 4 select pull up with 31 6 kQ 5 6 select pull down with 34 8 KQ 7 8 select GND 9 10 CSN Chip Select for SPI bus mode J11 Short Short force OE pin 5 to GND to enable LEDs output 2 pin Open 10 kQ pull up OE pin 5 to Vpop when applying external clock for blinking dimming on TP4 test point UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N
31. oard OM13483 5 Hardware description UM10729 RGB_LED4 WHT_LED4 RGB_LED3 WHT_LED3 J7 J9 J10 For LED 13 15 ForLED12 For LED 9 11 For LED8 for AD 0 2 address inputs CON4 14 pin CONS 5 pin connector to connector to Win I2CUSB PCU9669 mini board demo board CON2 9 pin connector to 12C 2005 1 board CON1 9 pin connector to J1 select Vpop next demo board 1 2 5 0V 2 3 3 3V WHT_LED1 RGB_LED1 WHT_LED2 RGB_LED2 For LEDO For LED 1 3 For LED4 For LED 5 7 aaa 013955 Fig 4 _PCA9955A demo board OM13483 Figure 4 shows the following items on the hardware e CON1 9 pin male connector is used to daisy chain to next 2C bus slave device or demo board e CON2 9 pin female connector is connected to JP1 on I2C demo board 2005 1 as master device to drive this demo board e CONS 5 pin male connector is connected to the PCU9669 or PCA9665 mini board as C bus master device to drive this demo board e CON4 14 pin male connector is connected to J1 on Win I2CUSB hardware board as 12C bus master device to drive this demo board e J1 selects Vpp power for PCA9955A connected 1 2 for Vpp 5 V and connected 2 3 for Vpp 3 3 V e J7 J9 and J10 to select one of the five GND Pull down Floating Pull up and Vpp input levels to address inputs AD 0 2 for a maximum of 125 possible programmable I2C bus slave address e LEDJ 0 15 16 channel output to drive four White LEDs WHT_LED 1 4 and four RGB LEDs R
32. rom the PC USB port Care should be taken not to exceed the USB port current capabilities UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 3 of 24 NXP Semiconductors U M1 0729 4 Installation PCA9955A demonstration board OM13483 UM10729 4 1 4 2 12C demo board 2005 1 and Win I2CUSB Lite software The OM13483 is a daughter card to the OM6275 12C demo board 2005 1 You may download the Win I2CUSB Lite Software the OM6275 user manual UM10206 and find ordering information at the NXP web site www nxp com demoboard OM6275 html The OM13483 is a daughter card to the OM13260 Fm I2C bus development board which is part of the Fm development board kit OM13320 You may download the software user manual and find ordering information at the NXP web site www nxp com demoboard OM13320 html documentation The Win l2CUSB Lite software from The Boardshop runs on Windows 98SE ME 2000 and XP and is compatible with any PC hardware having a minimum of a Pentium processor and a USB port The software allows the user to select one of the I2C bus devices on the board from a menu It also provides a Universal mode 12C Expert mode to allow users to create their own 12C bus commands with the same I2C bus devices OM13483 connection to 12C demo board 2005 1 The I2C demo board 2005 1 should be disconnecte
33. s subject to legal disclaimers Click the Send All button All the valid messages on the screen will be sent in the Msg The action will be performed one time NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 20 of 24 NXP Semiconductors UM10729 PCA9955A demonstration board OM13483 ion demo i2c add 3 ST 02 Sta ape a ST 00 Write 0 a SW res ST 02 Write 45 80 Yes 0 write IREFALL to 80h 225uA x 128 28 8mA per chann ST baa aa a e MR WMG SR ST 02 Write 82 04 04 04 04 Yes 700 start write LEDOUTX ri to turn on red LEDs ST 02 Write ST 02 Write 10 10 10 10 Yes 700 start write LEDOUTx ri to turn on green LEDs ST 02 Write ST 02 Write 82 40 40 40 40 Yes 700 _ start write LEDOUTx register to turn on blue LEDs ST 02 Write ST ST ST 02 Write ST 02 Write Pee STe 00 05 00 00 Yes 300 start write LEDOUTx register to turn on white red LEDs 00 00 00 55 Yes 300 start write LEDOUTx register to turn on white and RGB LEDs 10 40 01 04 Yes 400 start write LEDOUTx ri to turn on white and RGB LEDs 01 40 10 04 Yes 400 start write LEDOUTx register to turn on white and RGB LEDs 02 Write ST 02 Write 44 C0 Yes 0 write PWMALL register to set the PWMx C0h 75 duty cycles for ST 02 Write ST 02 Write 80 01 Yes 2000 write GRPPWM 80h for dui ON OFF ratio in 50 and ST 02 Write 2 ST 02 Write
34. tness for a particular purpose The entire risk as to the quality or arising out of the use or performance of this product remains with customer In no event shall NXP Semiconductors its affiliates or their suppliers be liable to customer for any special indirect consequential punitive or incidental damages including without limitation damages for loss of business business interruption loss of use loss of data or information and the like arising out the use of or inability to use the product whether or not based on tort including negligence strict liability breach of contract breach of warranty or any other theory even if advised of the possibility of such damages Notwithstanding any damages that customer might incur for any reason whatsoever including without limitation all damages referenced above and all direct or general damages the entire liability of NXP Semiconductors its affiliates and their suppliers and customer s exclusive remedy for all of the foregoing shall be limited to actual damages incurred by customer based on reasonable reliance up to the greater of the amount actually paid by customer for the product or five dollars US 5 00 The foregoing limitations exclusions and disclaimers shall apply to the maximum extent permitted by applicable law even if any remedy fails of its essential purpose Translations A non English translated version of a document is for reference only The English version shal
35. to determine whether the NXP Semiconductors product is suitable and fit for the customer s applications and products planned as well as for the planned application and use of customer s third party customer s Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products NXP Semiconductors does not accept any liability related to any default damage costs or problem which is based on any weakness or default in the customer s applications or products or the application or use by customer s third party customer s Customer is responsible for doing all necessary testing for the customer s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer s third party customer s NXP does not accept any liability in this respect Export control This document as well as the item s described herein may be subject to export control regulations Export might require a prior authorization from competent authorities Evaluation products This product is provided on an as is and with all faults basis for evaluation purposes only NXP Semiconductors its affiliates and their suppliers expressly disclaim all warranties whether express implied or statutory including but not limited to the implied warranties of non infringement merchantability and fi
36. us connector master device to drive this demo board CON4 14 pin header _ This 14 pin header is used to connect to Win I2CUSB hardware board as C bus master device to drive this demo board TP1 Test Point 1 This TP1 is used to drive RESET input pin 25 from external when J6 is open TP2 TP3 Test Point 2 3 These two test points are GND for probe ground connection TP4 Test Point 4 This TP4 is used to drive OE input pin 5 from external when J11 is open 1 Default PCU PCA9955A slave address is 0x02h AD 2 0 GND UM10729 All information provided in this document is subject to legal disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 23 July 2014 10 of 24 jenuew sn poz Aine ez L AeY suauejosip peba 0 JOaIqns s JUaWINDOP siy u PAapIAOsd UOIPEWOJU Jy vz 0 LL 62Z0LWN Pamasa SY N II Y LOZ A N SIO ONPUOTIWAS AXN 9 pin male connector to from 2nd PCA9955A demo board PCU9955A OM13484 and PCA9955A OM13483 16 ch 57 mA 20 V constant current LED driver Test Demo Board Ext RST input 3 3 V CON1 R1_ lo LED_MAX 57 3 mA 3 33 V gt 45v 1KQ
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