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Figure 5-7. Bottom Silk Screen

BQ76942EVM Circuit Module Physical Construction

SLUUC32A – NOVEMBER 2019 – REVISED OCTOBER 2020

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BQ76942 Evaluation Module

29

Copyright © 2020 Texas Instruments Incorporated

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Summary of Contents for BQ76942EVM

Page 1: ...accuracy perform calibration adjust protection limits and enable FET control outputs space Table of Contents 1 Features 3 1 1 Kit Contents 3 1 2 Ordering Information 3 1 3 BQ76942 Circuit Module Perfo...

Page 2: ...ple Connection with 9 Cells 20 Figure 4 6 Host Connection Concept 21 Figure 5 1 Top Silk Screen 23 Figure 5 2 Top Assembly 24 Figure 5 3 Top Layer 25 Figure 5 4 Layer 2 26 Figure 5 5 Layer 3 27 Figure...

Page 3: ...dule Performance Specification Summary This section summarizes the performance specifications of the BQ76942 circuit module in its default 10 cell series FET configuration Typical voltage depends on t...

Page 4: ...e limits in the Sepcification Table CAUTION Some power supplies can be damaged by application of external voltages If using more than 1 power supply check your equipment requirements and use blocking...

Page 5: ...ter display 9 Select the Data Memory button in the BQStudio window 10 Select the Settings button Set the Enabled Protections A CUV bit 11 In the Commands panel click on the FET_EN button 12 In the Reg...

Page 6: ...hunts to uC_SCL and uC_SDA Figure 2 1 EVM Connection for Basic Operation BQ76942 EVM Quick Start Guide www ti com 6 BQ76942 Evaluation Module SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Documen...

Page 7: ...le to configure the displays for the BQ769x2 device family or specific family device This is normally provided in the BQStudio installation If provided separately copy the bqz file to the config direc...

Page 8: ...to the menu selection Help Help Contents for information The BQStudio window appears as shown in Figure 3 2 The register area is blank since the device is not attached The center pane of BQStudio dis...

Page 9: ...lay shows device status registers and is read once when the device is detected To update the register values select the Refresh button at the top of the Registers tab To repeatedly read the registers...

Page 10: ...sections Not all devices have all the tools described Multiple tools can be active at one time tools which use the center pane for display are shown as a tabs at the top of the center section These ta...

Page 11: ...iew with a device connected Configuration settings are grouped into different functions accessed with buttons on the left side of the pane The Calibration section is displayed on initial selection Oth...

Page 12: ...ing is a permanent change to the device Be sure all configuration and calibration are set before programming settings into the device Casual programming may leave the board inoperable Writes to OTP ar...

Page 13: ...tion This may result in an apparent error at higher currents Calibration at higher currents will reduce this effect and should be done where it is important Voltages and temperatures may be calibrated...

Page 14: ...8 Calibration View Battery Management Studio Software www ti com 14 BQ76942 Evaluation Module SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback Copyright 2020 Texas Instruments Inco...

Page 15: ...3 11 The Device Send and Receive section allows read or write to a single or consecutive locations The Command Sequence section allows reads and writes to be intermixed in a sequence Sequences may be...

Page 16: ...Command Sequence View Battery Management Studio Software www ti com 16 BQ76942 Evaluation Module SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback Copyright 2020 Texas Instruments I...

Page 17: ...cell position of the header all lower inputs are pulled to VSS Installing shunts for the lower cell positions will connect the input to the simulated voltage There is no indication of the cell simula...

Page 18: ...er supplies Figure 4 3 shows a method to force current through the control path without a high wattage power supply or special equipment The load power supply should be set at a low voltage in a const...

Page 19: ...ELL8 R5 C5 VC9 to VC8 Cell 8 CELL8 to CELL7 R6 C6 VC8 to VC7 DC Power Supply Install cell simulator shunts Short CELL9 to CELL8 and CELL8 to CELL7 Figure 4 4 Example 8 Cell Simple Evaluation Configura...

Page 20: ...ld be used to connect I2C signals to the microcontroller board with GND and REG1 for a power supply from J2 The user should note that the J2 GND is connected to the BQ76942 VSS and BAT while the J13 r...

Page 21: ...The cell simulator header and I2C configuration are discussed with board connection diagrams J5 and J8 select the connection of the DFETOFF and CFETOFF pins Pins may be pulled low or high to REG1 J6...

Page 22: ...e The user should check settings or replace the IC or EVM as required CAUTION Hardware changes after OTP programming may result in damage to the IC or board after reset if incompatible configuration i...

Page 23: ...ed in the right lower corner Configuration headers are toward the right side of the board Pushbutton switches for wake up and reset of the BQ76942 are located near the bottom edge of the board The EVM...

Page 24: ...p Assembly BQ76942EVM Circuit Module Physical Construction www ti com 24 BQ76942 Evaluation Module SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback Copyright 2020 Texas Instruments...

Page 25: ...op Layer www ti com BQ76942EVM Circuit Module Physical Construction SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback BQ76942 Evaluation Module 25 Copyright 2020 Texas Instruments I...

Page 26: ...Layer 2 BQ76942EVM Circuit Module Physical Construction www ti com 26 BQ76942 Evaluation Module SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback Copyright 2020 Texas Instruments In...

Page 27: ...Layer 3 www ti com BQ76942EVM Circuit Module Physical Construction SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback BQ76942 Evaluation Module 27 Copyright 2020 Texas Instruments In...

Page 28: ...ttom Layer BQ76942EVM Circuit Module Physical Construction www ti com 28 BQ76942 Evaluation Module SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback Copyright 2020 Texas Instruments...

Page 29: ...m Silk Screen www ti com BQ76942EVM Circuit Module Physical Construction SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback BQ76942 Evaluation Module 29 Copyright 2020 Texas Instrume...

Page 30: ...om Assembly BQ76942EVM Circuit Module Physical Construction www ti com 30 BQ76942 Evaluation Module SLUUC32A NOVEMBER 2019 REVISED OCTOBER 2020 Submit Document Feedback Copyright 2020 Texas Instrument...

Page 31: ...0 022 uF 16 V 10 X7R 0603 603 C0603C223K4RACTU Kemet C17 1 0 01uF CAP CERM 0 01 uF 16 V 10 X7R 0603 603 8 85012E 11 Wurth Elektronik C19 1 2 2uF CAP CERM 2 2 uF 16 V 10 X7R 0805 805 EMK212B7225KG T T...

Page 32: ...HDR5 OSTTE050161 On Shore Technology J2 J18 2 Header 2 54mm 5x1 Tin TH Header 2 54mm 5x1 TH PEC05SAAN Sullins Connector Solutions J3 1 TERM BLOCK 3 5MM VERT 6POS PCB HDR6 OSTTE060161 On Shore Technolo...

Page 33: ...603 CRCW0603100RJNEA Vishay Dale R2 R5 R6 R9 R10 R11 R12 R14 R15 R16 R17 11 20 RES 20 0 1 0 25 W AEC Q200 Grade 0 1206 1206 CRCW120620R0FKEA Vishay Dale R3 R7 2 150 RES 150 5 1 W AEC Q200 Grade 0 2512...

Page 34: ...Dale R90 R91 2 33 RES 33 5 0 063 W AEC Q200 Grade 0 0402 402 CRCW040233R0JNED Vishay Dale R92 1 2 0k RES 2 0 k 5 0 063 W AEC Q200 Grade 0 0402 402 CRCW04022K00JNED Vishay Dale R93 R99 2 10k RES 10 k 5...

Page 35: ...ARGE T R DCT0008A SN74LVC2T45DCTR Texas Instruments U9 1 25 MHz Mixed Signal Microcontroller with 128 KB Flash 8192 B SRAM and 63 GPIOs 40 to 85 degC 80 pin QFP PN Green RoHS no Sb Br PN0080A MSP430F5...

Page 36: ...Header 2 54mm 5x1 TH PEC05SAAN Sullins Connector Solutions Q2 0 100V MOSFET P CH 100 V 0 6 A SOT 23 SOT 23 ZXMP10A13FTA Diodes Inc Q3 0 100V MOSFET N CH 100 V 10 A DQJ0008A VSONP 8 DQJ0008A CSD19534Q5...

Page 37: ...0 Test Point Multipurpose Red TH Red Multipurpose Testpoint 5010 Keystone TP8 0 Test Point Multipurpose Black TH Black Multipurpose Testpoint 5011 Keystone TP43 TP44 0 Red Test Point Compact Red TH Re...

Page 38: ...s do not exceed 1 ton per year The SVHC s are Table 5 2 REACH Components Component Manufacturer Component part number SVHC Substance SVHC CAS when available Murata Resonator CSTCR4M00G55B R0 Lead Tita...

Page 39: ...1 DNP TP8 DNP RST_SHUT 5 4 1 2 3 6 J4 EXTTS2 RST_SHUT CFETOFF CFETOFF CFETOFF 0 01uF C17 1uF C10 0 1uF C22 5 4 1 2 3 J2 REG2 REG2 BAT 100k R20 100V D1 1 3 2 4 Q1 FCX495TA 1uF C13 1 2 3 4 5 1 2 3 4 5 J...

Page 40: ...CFETOFF SPI_CS HDQ SPI_MOSI SDA SPI_MISO SCL SPI_SCLK ALERT HDQ 1 2 3 J8 REG1 10k R28 10k R29 REG1 REG1 10k R27 1 2 J9 REG1 10k R25 VSS 1 2 J11 1 2 J14 1 2 J16 10k R31 REG1 TP20 TP21 TP22 TP23 TP24 uC...

Page 41: ...R49 10M R61 BAT 13V 32V 2 5 cells VOUT 0 1uF C27 0 1uF C32 0 1uF C33 Desired voltage to Q11 Gate 12V 5V 0 1uF C39 0 1uF C43 0 1uF C26 0 1uF C28 0 1uF C30 0 1uF C34 0 1uF C38 0 1uF C40 0 1uF C41 0 1uF...

Page 42: ...M_UCB1CLK PM_UCA1STE 48 DVSS2 49 DVCC2 50 P4 4 PM_UCA1TXD PM_UCA1SIMO 51 P4 5 PM_UCA1RXD PM_UCA1SOMI 52 P4 6 PM_NONE 53 P4 7 PM_NONE 54 P5 6 TB0 0 55 P5 7 TB0 1 56 P7 4 TB0 2 57 P7 5 TB0 3 58 P7 6 TB0...

Page 43: ...of BQ76942 BQ76952 Battery Monitors Texas Instruments BQ76942 BQ76952 Software Development Guide Texas Instruments BQ7718 Overvoltage Protection for 2 to 5 Series Cell Li Ion Batt w Int Delay Timer d...

Page 44: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 45: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 46: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 47: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 48: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 49: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

Page 50: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments BQ76942EVM...

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