Data Sheet
Contents
1. The CAT3626DB1 software requires the following minimum system configuration e Microsoft Windows 98SE or Above e 100K of Available Hard Disc Space e Serial Interface Port The software is available on the CAT3626DB1 software distribution CD ROM or can be downloaded at http www onsemi com PowerSolutions evalBoard do 1 d CAT3626AEVB The CAT3626DB1 software is an executable program CAT3626DB exe which can be run from any directory or CD OFF UD Q ts VENT 0 venj Ore 0 O catracvst Hew Cate sore om O Figure 2 CAT3626DB1 Component Placement Top Side http onsemi com CAT3626AEVB The following steps should be followed to control the CAT3626DB1 demo board from the PC 1 Connect the CAT3626DB1 board to the PC serial port through a cable with 9 pin connectors extender type For a limited quantity the connection cable is provided 2 Connect a jumper shunt at J9 connector This allows the CAT3626 to remain disabled EN 0 at power on 3 Power the CAT3626DB1 board Turn the POWER switch ON The board should be powered when you start the program otherwise an error message will be displayed 4 Run the CAT3626DB exe program from the directory where the software was installed 5 The CAT3626 Demo Board user interface window opens Figure 3 6 When the program starts the board will be in the disabled state Press the ENABLE button and the C2. Industries LLC SCILLC SCILLC reserves the right to make changes without further notice to any products herein SCILLC makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does SCILLC assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability including without limitation special consequential or incidental damages Typical parameters which may be provided in SCILLC data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operating parameters including Typicals must be validated for each customer application by customer s technical experts SCILLC does not convey any license under its patent rights nor the rights of others SCILLC products are not designed intended or authorized for use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application Buyer shall indemnify and hold SCILLC and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees
3. AT3626 will be enabled After setting the EN input high the user can write into the Register_S to activate the corresponding LED output channels Figure 4 shows all the LED channels active The current for each channel is set at the minimum value 0 5 mA 7 Using the CAT3626DB1 software the user can access all the internal registers of the CAT3626 e Register A set the LED current for group A LEDA1 LEDA2 associated with Red from RGB LEDs Register B set the LED current for group B LEDB1 LEDB2 associated with Green from RGB LEDs Register C set the LED current for group C LEDC1 LEDC2 associated with Blue from RGB LEDs Register S controls the ON OFF state of each LED channel independently cor CAT 3626 CATALYST CAT3626 DEMO BOARD REGISTER_S LEDS On Off State O LED s1 D LED A2 LED ey LEDO 57 REGISTERA A A2 LED channels Write xx oo m E 0 Read RESTE 61 B4 name sn 7 D Write AAA Read REGISTER Cle LED chennels 0 arite AH DO OOO Read Eeo ci ELEn ca wie Reza Figure 3 CAT3626DB1 Software Interface Window Start Window The user can set the current for any group writing the associated register with the desired value The current can be set between 0 5 mA and 32 mA These 64 steps corresponds to the binary registers values of XX000000 to XX111111 The user can change the LED current value writing the corresponding binary value i
4. CAT3626AEVB CAT3626 6 Channel LED Driver Evaluation Board User s Manual Introduction This document describes the CAT3626DB1 evaluation demonstration board for the ON Semiconductor CAT3626 6 Channel LED driver with I4C interface The functionality and major parameters of the CAT3626 can be evaluated with the CAT3626DB1 board The CAT3626 is a 6 channel charge pump that has been designed to drive up to 6 LEDs connected in parallel The device can drive three groups of two LEDs Each group can be configured with independent LED current of up to 32 mA max per channel through the I2C serial interface The CAT3626 is operating in either 1x mode LDO or 1 5x mode and provides tightly matched regulated current through the six LED outputs Each LED channel can be also VEXT VIN 0 e C2 1uF C3 3 V y Power j Y K1 1uF VBAT ls 8 Bit PERE CAT3626 Serial 2 x RGB LED Interface 1 uF ON Semiconductor http onsemi com EVAL BOARD USER S MANUAL turned off on independently through the I2C bus Detailed descriptions and electrical characteristics are in the CAT3626 data sheet CAT3626EVAL1 Board Hardware The board contains the CAT3626 in a typical application circuit driving 2 RGB LEDs or 6 white LEDs The CAT3626 is controlled through the I2C serial interface using an 8 bit microcontroller The user can chose to drive on off any LEDs combination or to set the desired LED current through a PC seri
5. al interface The board is powered from an attached 9 V battery The block diagram of the board hardware schematic is shown in Figure 1 VOUT Figure 1 CAT3626DB1 Block Schematic Semiconductor Components Industries LLC 2011 September 2011 Rev 3 Publication Order Number EVBUM2018 D CAT3626AEVB The CAT3626 input voltage VIN is supplied on board from a fixed 5 V or 3 V voltage internally provided or from an external voltage applied to the VEXT T5 pad The voltage supplied at the VIN input of the CAT3626 device can be selected using the jumper options for the K1 connector When using an internal supply 9 V battery set the jumper to position 1 6 for the 5 V voltage or to position 2 5 for the 3 V voltage To apply an external voltage a shunt must be placed in position 3 4 and an additional shunt must be placed in either the 1 6 or 2 3 position The board uses an 8 bit microcontroller 8051 type The microcontroller provides the signals on the SCL SDA and EN lines to control the CAT3626 The user can connect or disconnect the CAT3626 outputs to the LEDs using the jumper options for J1 J2 J3 J4 J5 J6 and J7 connectors J1 to J7 header pin connectors can be used to insert a current meter to evaluate the programmed LED current on each channel The board is powered when the POWER switch is ON The CAT3626DB1 boards are populated with two RGB LEDs Everlight EL61 23RGBC The component placement to
6. arising out of directly or indirectly any claim of personal injury or death associated with such unintended or unauthorized use even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part SCILLC is an Equal Opportunity Affirmative Action Employer This literature is subject to all applicable copyright laws and is not for resale in any manner PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT N American Technical Support 800 282 9855 Toll Free ON Semiconductor Website www onsemi com Literature Distribution Center for ON Semiconductor USA Canada P O Box 5163 Denver Colorado 80217 USA Europe Middle East and Africa Technical Support Order Literature http www onsemi com orderlit Phone 303 675 2175 or 800 344 3860 Toll Free USA Canada Phone 421 33 790 2910 ee q Fax 303 675 2176 or 800 344 3867 Toll Free USA Canada Japan Customer Focus Center For additional information please contact your local Email orderlit onsemi com Phone 81 3 5773 3850 Sales Representative EVBUM2018 D Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery amp Lifecycle Information ON Semiconductor CAT3626AEVB
7. els xx111014 LED current 30 0ma S H gt Read REGISTER C1 C2 LED channels y C1 C2 LEDs current setting i O te xxo00101 LED current 30m Y Read Figure 5 CAT3626DB1 Board Sets LED Current Independently for each LED Group http onsemi com 4 CAT3626AEVB L T E yo E 3 No O 5 2D E E pe A a pi ja TE di 150 Y LO D A6 NEA 3 K2 1 AG DOA 8 ey 0 S dWOreWw O E O a z D 91 a 1X3 RZ GL Y O AE U0A S Z NIA yo AS 99M 3 y t N 2 I bl O ee 3 a aan o se Z INOA O O 2 Zr tO O a AG OOA A ad x 3 10ISv 8d7 T el c yo O o aS E HdAcc60d 168d oF 10S 6 vas 8 FIAVNA dzz Z ZHW Z6S0 LL Ga YIO LX 4dd gz 9 y 13838 6r S Z L Moe vd A dd od A oO 13 LW LO y g l de g 9 Vs Waa Was Wa Ma ay 88800 MON X 9 AS 00A _ O ta za a ta sa ea 9Z9ELVO a gt Q WS bis wos TU ey dy Figure 6 CAT3626DB1 Board Schematic Pe 10S T T lnea TE CL O O O O O O Y Q i Q i Q Q L Q L Q i er oF vy AlaVNA am N ee O LL Pz Icf 2 Te zit zis 219 2 G i NIA O O O O O O Q 0000 W1 21 191 231 191 Z921 e Ol 6 Z 8 in 41 A Mi mi http onsemi com CAT3626AEVB Table 1 CAT3626DB1 BOARD LIST OF COMPONENTS Manutai Desorption Primer ON Semiconductor 6 Channel LED Driver with 12C Interface QFN16 CAT3626HS4 1 Philips 8 bit Fla
8. n the associated Register A B or C Every register has associated Write and Read buttons to write and respectively read data The current value can be also changed moving the cursor or and pressing the arrows buttons on the slider associated to each register As an example Figure 5 shows all the channels enabled and the LED currents set to 15 mA Group A Red 30 mA Group B Green and 3 mA Group C Blue http onsemi com 3 CAT3626AEVB ma CAT 3626 CATALYST em CAT3626 DEMO BOARD DEE REGISTER_5 LEDs On Off State W LEDA fw LED_ 2 M LED_B1 M LED_B2 M LED_C1 f LED_ 2 REGISTERA ial A2 LED channels j T 0 Al A2 LEDs current setting Write xx 00 O00 0 LEDcurrent 05mA K4 AP Ss gt Read REGISTER_ 61 B2 LED channels j T T B1 B2 LEDS current setting Write x x00 0000 LED current 0 5 mA KS n gt gt Read REGISTER_C C1 C2 LED channels 01 621 FAS currant setting E Write xx00 0000 LED current 0 5 ma lt A Y Read Figure 4 CAT3626DB1 with All Channels Enabled and LED Current Set to Min Value cor CAT3626 CATALYST CAT3626 DEMO BOARD DISABLE REGISTER_S LEDs On Off State y M LED AT M LED_ 2 M LED B1 fw LED_B2 W LED C1 f LEDC Write Read REGISTERA A1 AZ LED channels 7 AL A2 LEDs current setting Write EXE 1101 LED current 15 0 ma lt lt ee gt gt Read REGISTER_B ell B2 LED chann
9. p side for the CAT3626DB1 and the board picture are shown in Figure 2 The detailed schematic and the list of components for the CAT3626DB1 are shown in the Appendix attached in the end of this document Board Operation Stand alone Board The board can be also used as a demonstration board without connection to the PC interface As a standalone board when the POWER switch is turned ON the microcontroller starts executing a routine that sequentially 0 CATS426 LED Driver with IZE Interface catze2e081 REW2 0 a PCWER on OFF O 13 VOUT 14 BND Ts uO p T2 ver OTs GNI _ Se ee WHA catsem com 0 sets different LED current values for each of 3 groups LED output channels As a result the 2 RGB LEDs will provide the colors mixing between RED GREEN and BLUE with different intensities This loop is executed as long as the board is powered NOTE To use as a stand alone board the J9 connector must have the jumper removed otherwise the microcontroller does not start the routine of controlling the CAT3626 at power on CAT3626DB1 Board Controlled through the PC Serial Interface The user can set the desired LED current value for each of CAT3626 output channel connecting the CAT3626DB1 through a PC serial interface The CAT3626DB1 software provides the user a very friendly graphical interface GUI for sending all the commands to drive on off any LEDs configuration and to program the LEDs current
10. sh Microcontroller TSSOP20 P89LPC922FDH 1 Semiconductor U U l U Intersil RS 232 Transmitter receiver SOIC16 Narrow ICL3232ECBN 1 U U 2 3 4 National 3 V 500 mA Voltage Regulator DPAK LP8345CDT 3 3 Semiconductor 5 National 5 V Voltage Regulator 1 A SOT223 LM340MP 5 0 Semiconductor C1 C2 C3 AVX Ceramic Capacitor 1 uF 10 V 10 X5R 0603ZD105KAT2A C4 C12 Size 0603 AVX C5 C6 C7 Ceramic Capacitor 0 1 uF 10 V 10 X7R 08057C104KAT2A C8 C9 C10 Size 0805 C11 Ceramic Capacitor 22 pF 100 V 5 COG 12061A220JAT2A 2 Size 1206 C13 C14 AV Tantalum 10 uF 10 V 10 Low ESR TPSA106K010R1800 O Re SMT Resistor 1 8 W 180 kQ 1 Size 0805 CRCW0805180KFKTA SMT Resistor 1 8 W 5K1 1 Size 0805 CRCW08055K10FKTA R2 R3 SMT Resistor 1 8 W 22 kQ 1 Size 0805 CRCWO80522KFKTA D1 to D6 Nichia White LED Not Soldered NSCW100 Everlight RGB LED SMD EL61 23RGBC R R J1 to J7 J9 2 pin Header Connector 0 1 Single Strip 2302 6211TG J K K xX 4 7 2 X 2 MMM MMM M 4 pin Header Connector 0 1 Single Strip 23046211TG M 6 pin Header Connector 0 1 Double Strip 2308 62221 TG ITT Cannon Slide switch L102 01 1 MS 02 Q2 M Electronics Mil Max 0149 0 15 01 30 14 04 0 1 1 1 1 1 1 1 1 P T1 to T6 B Vishay Crystal 11 0592 MHz XT9SNLANA11M0592 15 1 4 8 1 3 1 P1 TH ON Semiconductor and ON are registered trademarks of Semiconductor Components
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