ISL45041EVAL1 User Guide
Contents
1. PART NUMBER REF DES QTY VALUE TOLERANCE POWER PACKAGE JEDEC MANUF DESCRIPTION H1046 00104 25V20 C13 C19 21 4 0 1uF 20 SMD 10 SM0805 Kemet Multilayer Capacitor T353K106K050AS C15 C17 2 10uF 10 Radial 10 TANT 200 Kemet Tantulum Capacitor 5000 TP 4 SIP CONN GEN Keystone Mini Test Point 68000 236 1X3 J3 4 J6 7 4 1X3 Berg FCI Connector Header J10 J16 68000 236 1X5 Power 12C 2 1X5 Berg FCI Connector Header 69190 202 J5 J9 2 1X2 Berg FCI Connector Header H2512 01002 1 10W1 T R7 8 2 10K 1 1 10W SMD 1 SM0805 Generic TFC Resistor H2512 02003 1 10W1 T R13 1 200K 196 1 10W SMD 1 SM0805 Generic TFC Resistor H2512 02433 1 10W1 T R14 1 243K 196 1 10W SMD 196 SM0805 Generic TFC Resistor H2512 02492 1 10W1 T R19 1 24 9K 196 1 10W SMD 1 SM0805 Generic TFC Resistor ISL45041IR U7 1 TDFN 8DFN 3X3A Intersil Vcom Three Twisted Wire 1 1 Red Green Black Male Banana Jack 10V 3V 3 Red Green GND Black 6 intersil AN1207 0 September 12 2005 GO0Z ZI Jequejdes 0 20CVNV 3 0 rper ime a Lp PU E r3 ir OF a nd TL EFL LI OL nd VDD 3 0V r4 m J10 ri R16 USER R19 24 9K AVDD 10 0V FIGURE 7 ISL45041EVAL1 SCHEMATIC R13 200K J8 Vcom OUTPUT m f VOLTAGE a mo J7 R14 243K LOZL 91o0N uogeorddy de Diagrams intersil 7 BIT ADDRESS 4 F 0 TO WRITE TO EEPROM 8 BIT ADDRESS 92. TERES DeVoSys USB 12 Lge us8 1269 NO CECH FF MES ont ds C6 cB ii 373 y mer F de f TRS ia ONG U4 TU 1 EREC cNDC Inl LIFT Tj arte 4 A CAMI FRE MP3 ICA EA C13 Bue Bem MPRI Jus Sie irn A ay GIZA 553 S224 p AAA ANA LLL AR MENO NENNIN ANNA Tn Ua obo FIGURE 1 USB un BOARD MADE BY DeVaSys 1 CAUTION These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures 1 888 INTERSIL or 1 888 468 3774 Intersil and design is a registered trademark of Intersil Americas Inc Copyright Intersil Americas Inc 2005 All Rights Reserved All other trademarks mentioned are the property of their respective owners Application Note 1207 rd lt My Computer P Eu C dcp_eval My Ebo MyIntersil Fie Edit view Favorites Tools Help Places lt a Back gt 2 Asearch Hy Folders a uz x A Ea Recycle Bin W2ODOTS Desktop ZA My Documents DabfO3es hex GENERIC SYS I2CDCP Intersil IC2 LOADEZ INF a e i a Mv Computer Evaluation Li E e Local Disk c gt gt gt Internet Work Order ia MS Explorer Search i i LOADEZ SYS USBI2CIO DLL al INF LISBI2CIO SYS El AJ Microsoft i Shortcut to Outlook i LabVIEW exe Y E Found New Hardware aae EE aa dell m i E e Documents and Settings DeVaSys LISB 2CIO easurement amp Automation i LP Microsoft Access 4 We
3. intersil ISL45041EVAL 1 User s Manual Application Note Description The ISL45041EVAL1 is the evaluation board for the ISL45041 12C LCD Module Calibrator The evaluation kit comes complete with ISL45041EVAL 1 board DeVaSys USB to 12C converter board USB cable to connect the converter board to a PC Power and 12C cables for the ISL45041EVAL board and Software for both boards The USB to 12C converter board USB I2CIO Rev B2 allows the user to adjust and program the ISL45041 Vcom voltage using a PC For any help with the USB I2CIO board please contact the manufacturer at http www devasys com usbi2cio htm This application note will guide the user through the process of installing the USB to 2c drivers installing the ISL45041 Graphical User Interface GUI and configuring the ISL45041EVAL1 board for evaluation of the ISL45041 Additional equipment required are two power supplies one volt meter and a PC Windows 98 XP 2000 machine with a standard USB port The board is designed to operate from an AVDD supply 5V 18V and VDD supply 2 5V 3 6V Installing the USB to I C Drivers USB I2CIO Board Driver Installation 1 The evaluation kit comes with a CD Horam the software and drivers to control the IC bus Create a folder on your C drive called I2C DCP and copy the contents of the CD to this folder E0428 AE Este Tl C2 TI CU s MEDIA BEER NIE HER ee UD oe r Status 55102 No
4. Veo output voltage J10 enables the user to program the output current limit of the part J10 needs to be in the 2 3 position to use the on board resistor R19 To customize the output current limit the user can populate R16 with their desired resistor value and move J10 to the 1 2 position J5 and J9 provide the power to the ISL45041 You are now ready to adjust the Vcom output voltage using the ISL45041EVAL1 GUI Using the GUI to Control the Vcom Output Voltage Expected Output Voltage The ISL45041 provides an output sink current which lowers the voltage on the external voltage divider Vcom output voltage Equation 1 and Equation 2 can be used to calculate the output current IOUT and output voltage VOUT values Setting AVDD EQ 1 IOUT 196 20 RSET Setting R1 128 20 RSET EQ 2 VOUT lt G Avpp 1 NOTE Where setting is an integer between 1 and 128 Table 1 gives the calculated value of VOUT for the eval board using the on board resistors values of RSET 24 9K R1 200K R2 243K and VADD 10V Also provided in Table 1 are the HEX values for several settings when writing to either the Register or EEPROM 5 intersil TABLE 1 HEX VALUE HEX VALUE SETTING WRITING TO WRITING TO VALUE VOUT REGISTER EEPROM 1 5 468 01 00 10 5 313 13 12 20 5 141 27 26 30 4 969 3B 3A 40 4 797 4F 4E 50 4 625 63 62 60 4 453 77 76 70 4 281 8B 8A 80 4 109 OF 9E 90 3 9
5. i wie 3 eu om M ATEN CA E io nmi ETIITTITIIIIT CLERI In AN1207 0 September 12 2005 2 After the files are copied connect the USB cable to the USB port of a PC it will power up the board Windows should detect the new USB device and the Found New Hardware Wizard should begin as shown in Figure 2 This will help you install the drivers Follow the directions on the screen until it asks you where to search for the drivers At this point you should select the Search for a suitable driver for my device recommended option and browse to the C l2C_DCP folder created in step one and select the drivers folder INF file Follow the remaining directions and the driver should be installed and the USB I2CIO detected by your PC Click finish 3 Once the drivers are installed and the USB cable connected between the DeVaSys USB I2CIO board and the PC both LED s on the board should be on See Figure 1 Installing the ISL45041EVAL1 GUI 1 Open directory C l2C_DCP the one generated in the previous step Launch the Intersil IC2 DCP ISL45041Eval exe File as shown in Figure 2 When the first screen appears click on the Open USB tab as shown in Figure 3 2 If the communication is established the window should look like Figure 4 after clicking on the Open USB tab In case of failed communication the warning window will appear mw ERU e a E ien
6. m ISL45041 CUN Y E i y e POWER SUPPLY POWER CONNECTOR i ta 7 i kem a AVDD AND VDD GND AVDD VDD KZ AER 2 SELECTION BM a TP 2103 6V J3 gt ERA 7 mM ISL45043 J6 AND J7 EXTERNAL RESISTOR it j SOCKET DIVIDER SELECTION FS d y STOLAVE ax 77 R7 J4 WPp POLARITY CONTROL Ci L Z2 TP_GND ISL45041 FIGURE 6 JUMPER SETTINGS FOR THE ISL45041EVAL1 BOARD 4 intersil AN1207 0 September 12 2005 Application Note 1207 Configuring the ISL45041EVAL1 Jumpers Jumpers The board is equipped with jumpers to enable the user to adjust the SET current limit and values of output voltage with different values of R1 and R2 reference schematic in Figure 7 Jumpers not used for the ISL45041 are J3 J6 and J16 These jumpers should be left open J4 is used for the Write Protect function test To be able to program the part J4 needs to be in the 1 2 position connecting the WP pin to VDD The WP pin of the ISL45041 has an internal pull down resistor If J4 is open or in the 2 3 position connecting this pin to GND the part is write protected J6 and J7 enable the user to change the external resistor values on the OUT voltage divider To use the on board resistors R13 R14 J6 and J7 need to be in the 2 3 position To customize the output voltage the user can populate R11 and R12 with their desired resistor values and move J6 and J7 to the 1 2 position J8 provides a convenient connection to monitor the
7. 36 B3 B2 100 3 764 C7 C6 110 3 592 DB DA 128 3 282 FF FE Controlling the Output Vcom Voltage Using the GUI Figure 4 shows the Graphical User Interface for controlling the ISL45041EVAL1 board Vcom output voltage on jumper J8 The brief definition of the GUI s application screen follows 12C Slave Address The IC 8 bit Slave Address for this part is HEX code 9E or OF The IC 7 bit Save Address for this part is HEX code 4F Note the LSB sets the condition for writing to EEPROM 0 or Register 1 Reference Figure 8 Wrt DATA Rd The Hex number displayed on the left is the logic string written to the ISL45041 The Hex number displayed on the right is the logic string read from the ISL45041 Once again the LSB sets the condition for writing to EEPROM 0 or Register 1 This results in the first address being HEX 01 and the last being HEX FF when writing to the Register and 00 and FE when writing to the EEPROM see Table 2 Clicking in the box to the right of the Write Timer Controlled or the Read Timer Controlled will enable the user to select a time interval between Write or Read commands Once you check the box the Stop Timer tab will appear This will enable the automatic Write or Read cycle to stop This feature is handy when evaluating the operation with a scope For single Write or Read cycles click on the I C Write button or the 12C Read button in the middle of the screen Programming Mode Selec
8. AD pa A CIE x Analog Signal Processing Producf Group SHOWS JUMPERS WRITE MANUALLY TO CONFIGURE THE ALSO WRITTEN EVERY TIME READ THE REGISTER VALUE SET AND READ ISL45041 THE POSITION IS CHANGED COULD BE SELECTED TO READ REGISTER POSITION BACK EVERY TIME THE REGISTER IS WRITTEN AUTO READ FIGURE 4 GUI SCREEN TO PROGRAM ISL45041 3 intersil AN1207 0 September 12 2005 Application Note 1207 Connecting the Hardware 3 Connect the power supply cable to the ISL45041EVAL1 1 Connect the ISL45041EVAL1 board to the DeVaSys board Note Connect the power cable as shown in Figure 5 Turn on the power supplies to power up the board as shown in Figure 5 Note Connect the 12C cable ISL45041EVAL1 board make sure the cables are as shown in Figure 5 connected properly RED AVDD GREEN VDD 2 Set the VDD power supply green wire to 3 0V Set the BLACK GND AVDD power supply red wire to 10 0V ce A Dil MER E si es See Fe 4 a HE AA TNI DL re Hire THEFT FEET I P l k i y J N Y POWER CABLE 12C CABLE i y FIGURE 5 ISL45041EVAL1 TEST SETUP J10 SET RESISTOR J16 SCL SCL_C CLOCK INPUT SELECTION SELECTION r ISL45041FVAL1 REV B 12C CONNECTOR T omg gt a SCL SDA GND d s c a 10 ISL45041IR gi x rm OUTPUT VOLTAGE CAN BE Jit E T OBSERVED ONJ8 e GRE Cee 7 A A j md au ici t n it J5 AND J9
9. E Es O a DOS ro ICO ICI fs CIS ICO ICO pew po O AO CIO IO AI IO CIO IC FS FE SCL P is don t care An SDA transition from low to high while SCL is high signals a Stop condition me ji Read n ead operation A Wr hg Durina SI Add 1 Register writing An SDA transition Fess Bring Sayo ross OD EEPROM writing program A from high to low Transmission Transmission the addressed while SCL is high IC2 Master slave must drive the SDA low mi win e Meta designates during the ACK time If no Ack piccole operation to be is receive Master will abort aread or write and Retry operation Writing data 00 to slave 4F 9E Writing data FF to slave AF 9E FIGURE 8 ISL45041EVAL1 TIMING DIAGRAM Qo D o g o Intersil Corporation reserves the right to make changes in circuit design software and or specifications at any time without notice Accordingly the reader is cautioned to gt verify that the Application Note or Technical Brief is current before proceeding E For information regarding Intersil Corporation and its products see www intersil com oo LOZL 91o0N uogeorddy
10. lcome to the Found New Pod y i Hardware Wizard Microsoft Pop Qe Excel sona Found New Hardware Wizard This wizard helps you install a device driwer for a le object s selected hardware device To continue click Next start 1 a Byc idcp_eval Found New Hardware Found New Hardware Wiz RUSS 2 47 Pm FIGURE 2 INSTALLING DeVaSys DRIVERS Intersil s I2C DCP Product Demonstation BE _ Y 10 x User Help About inter amer ESE HE K analog signal processing OpenUse E OSE Staus Bl USB Self Check BN rite OCP B Read OCP B Timer Status Analog Signal Processing Produc Greup FIGURE 3 GUI SCREEN AT START UP 2 intersil AN1207 0 SA September 12 2005 Application Note 1207 E Intersil s I2C DCP Product Demonstation f Bl x User Help About mtersil ES eae fc TT M analog signal processing Open USE 9 USB Status E USB Self Check Ml write DCP B Read DCP Bl Timer Status A WARNING SORS I5L4504x Digital Poteniometer Control SELECTION PRC Slave Address Programming Mode set Position Read Position REGISTER e EEPROM m EEPROM en es i Register E WRITTEN a E DATA I i a5 Wit DATA Rd I 01 HEX CO A les READ DATA SM ike Scheer eon e write Timer Controlled REPETITIVE Read Timer Controlled i WRITE OR READ CYCLES E Int RU MM I2C wiite 2C Read A SETS INTERVAL l gx l E TIME BETWEEN Show Jumpers l Auto Read Ighore Fails WRITE OR RE
11. ts either the EEPROM or the Register to write to or read from AN1207 0 September 12 2005 Application Note 1207 Set Position This is how you adjust the ISL45041 output Vcom voltage Placing your curser on top of the slide bar click and hold then drag the mouse to adjust the Vcom voltage When you release the mouse the new HEX value will appear in the Wrt window The window directly below the slide bar shows the set bar position The true decimal value of the logic code being written is one less than the number shown This results because the ISL45041 has 128 resistive taps for programming The digital logic designates 0 to 127 for the possible 128 steps The slide bar starts at 1 and ends at 128 ISL45041EVAL 1 Bill of Materials Read Position To read the value of the Register or EEPROM click on the I C Read button in the middle of the screen This gives a visual representation of the either the EEPROM or Register value The window directly below the slide bar shows the bars position read from either the Register or EEPROM The true decimal value of the logic code being read is one less than the number shown for the same reason as above Click on the auto read box in the bottom middle of the screen to automatically read any value selected de Timing Diagram Figure 8 shows the IC timing diagram and expected scope photos of SCL and SDA when writing all zeros or all ones TABLE 2 ISL45041EVAL1 BOM
Download Pdf Manuals
Related Search