Texas Instruments BQ76922EVM User Manual Download Page 22 | Manualshive

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Texas Instruments BQ76922EVM User Manual Download Page 22

Figure 6-4. Layer 2

Figure 6-5. Layer 3

BQ76922EVM Circuit Module Physical Construction

22

BQ76922EVM Evaluation Module

SLVU957A – SEPTEMBER 2019 – REVISED NOVEMBER 2021

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Copyright © 2021 Texas Instruments Incorporated

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Summary of Contents for BQ76922EVM

Page 1: ...1 Kit Contents 3 1 2 Ordering Information 3 1 3 BQ76922EVM Circuit Module Performance Specification Summary 3 1 4 Required Equipment 3 2 BQ76922EVM Quick Start Guide 4 2 1 Before You Begin 4 2 2 Quick...

Page 2: ...16 Figure 5 5 Example Connection with 4 Cells 17 Figure 5 6 Host Connection Concept 18 Figure 6 1 Top Silk Screen 20 Figure 6 2 Top Assembly 21 Figure 6 3 Top Layer 21 Figure 6 4 Layer 2 22 Figure 6 5...

Page 3: ...le Performance Specification Summary This section summarizes the performance specifications of the BQ76922 circuit module in its default 5 cell series FET configuration Typical voltage depends on the...

Page 4: ...potential of the EVM CAUTION Connections for rated current must be made at the terminal block Test points are not rated for the board current 2 2 Quick Start The BQ76922 registers must be configured t...

Page 5: ...d the Pack pin voltage registers in the Registers section are approximately equal The SLEEPCHG bit is enabled by default if the SLEEP status is set CHG_FET will be off Click the SLEEP_DISABLE command...

Page 6: ...DC Power Supply EV2400 I2C Install cell simulator shunts Position shunts to EXT Figure 3 1 EVM Connection with External EV2400 EV2400 versions 0 28 and newer are compatible with the on board interface...

Page 7: ...oftware uses a bqz file to configure the displays for the BQ76922 device or family devices This is normally provided in the BQStudio installation If provided separately copy the bqz file to the config...

Page 8: ...ursor is held over an item name The tool tip provides some description of the item The tool tip closes after approximately 30 seconds To avoid the tool tip display move the cursor to the value or unit...

Page 9: ...ng 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...

Page 10: ...are enabled using the Enable_FETs command Enabling a protection and enabling the protection action on a FET are not sufficient the FETs must be enabled with the command BQStudio will enter and exit c...

Page 11: ...m OTP Pane with Success Display 4 7 Calibration The calibration tool may not be available for all versions of devices When the calibration tool is not available calibration of the device can be perfor...

Page 12: ...data but a user may want to send specific commands to the device The Command sequences tool allows this operation and is shown in Figure 4 11 The Device Send and Receive section allows read or write...

Page 13: ...mmand Sequence View www ti com Battery Management Studio Software SLVU957A SEPTEMBER 2019 REVISED NOVEMBER 2021 Submit Document Feedback BQ76922EVM Evaluation Module 13 Copyright 2021 Texas Instrument...

Page 14: ...lower inputs are pulled to VSS Installing shunts for the lower cell positions connects the input to the simulated voltage There is no indication of the cell simulator connection the user must be aware...

Page 15: ...ipment The load power supply should be set at a low voltage in a constant current mode Polarity can be reversed on the load supply to simulate a charge current The battery simulation supply must never...

Page 16: ...n implementing a design the configuration of the data sheet is recommended After changing the physical connection the Vcell Mode must be changed in Data Memory Settings for proper operation The defaul...

Page 17: ...onnection shown in Figure 5 6 the MCU runs from the battery voltage inside the protection FETs The shunts on J7 must be positioned to connect the BQ76922 I2C lines to the external connector If the MCU...

Page 18: ...gh to REG1 or brought to a terminal block for external connection J3 selects the connection of TS2 It may be taken to a terminal block for connection of an external wake or thermistor It may also be p...

Page 19: ...5 Exporting saving the configuration register file for future use When no additional changes are anticipated to the configuration and extended validation is planned the user may write the configurati...

Page 20: ...in the right lower corner Configuration headers are toward the right side of the board Pushbutton switches for wake up and reset of the BQ76922 are located near the bottom edge of the board The EVM l...

Page 21: ...gure 6 3 Top Layer www ti com BQ76922EVM Circuit Module Physical Construction SLVU957A SEPTEMBER 2019 REVISED NOVEMBER 2021 Submit Document Feedback BQ76922EVM Evaluation Module 21 Copyright 2021 Texa...

Page 22: ...re 6 5 Layer 3 BQ76922EVM Circuit Module Physical Construction www ti com 22 BQ76922EVM Evaluation Module SLVU957A SEPTEMBER 2019 REVISED NOVEMBER 2021 Submit Document Feedback Copyright 2021 Texas In...

Page 23: ...6 7 Bottom Silk Screen www ti com BQ76922EVM Circuit Module Physical Construction SLVU957A SEPTEMBER 2019 REVISED NOVEMBER 2021 Submit Document Feedback BQ76922EVM Evaluation Module 23 Copyright 2021...

Page 24: ...Assembly BQ76922EVM Circuit Module Physical Construction www ti com 24 BQ76922EVM Evaluation Module SLVU957A SEPTEMBER 2019 REVISED NOVEMBER 2021 Submit Document Feedback Copyright 2021 Texas Instrum...

Page 25: ...Elektronik D1 D2 D7 3 40V Diode Schottky 40 V 0 2 A SOT 323 SOT 323 BAS40W 7 F Diodes Inc D3 1 Red LED Red SMD LED_0603 150060RS75000 Wurth Elektronik D4 D5 D6 3 16V Diode Zener 16 V 500 mW SOD 123 S...

Page 26: ...AEC Q200 Grade 0 0402 0402 CRCW040233R0JNED Vishay Dale R62 1 2 0k RES 2 0 k 5 0 063 W AEC Q200 Grade 0 0402 0402 CRCW04022K00JNED Vishay Dale R63 R71 2 10k RES 10 k 5 0 063 W AEC Q200 Grade 0 0402 0...

Page 27: ...1 Gold TH Header 2 54 mm 7x1 TH PBC07SAAN Sullins Connector Solutions J14 0 Header 2 54mm 5x1 Tin TH Header 2 54mm 5x1 TH PEC05SAAN Sullins Connector Solutions Q2 0 60V MOSFET P CH 60 V 0 9 A SOT 23 S...

Page 28: ...do not exceed 1 ton per year The SVHC s are Table 6 2 REACH Components Component Manufacturer Component Part Number SVHC Substance SVHC CAS when available Murata Resonator CSTCR4M00G55B R0 Lead Titani...

Page 29: ...D 1 2 3 J3 10k R22 100k R16 100k R17 100k R24 1 2 3 4 5 6 7 8 9 10 11 12 J4 TP10 TS1 TS2 SCL SDA TP14 TP13 HDQ 0 22uF C4 20 0 R5 20 0 R6 20 0 R7 0 22uF C5 0 22uF C7 0 22uF C8 0 22uF C9 0 22uF C10 20 0...

Page 30: ...36 TP35 0 R34 4 7 8 1 2 3 5 6 Q6 0 R44 51 R43 40V D7 16V D6 16V D5 5P 4P 3P 2P 1P 1 0k R41 1 0k R37 TP31 TP32 TP30 TP25 TP22 TP33 TP34 100V D8 PACK PACK PGND PACK PACK E4 0 1uF C32 0 1uF C30 1 2 3 4 J...

Page 31: ...A 37 P3 1 UCB0SOMI UCB0SCL 38 P3 2 UCB0CLK UCA0STE 39 P3 3 UCA0TXD UCA0SIMO 40 P3 4 UCA0RXD UCA0SOMI 41 P3 5 TB0 5 42 P3 6 TB0 6 43 P3 7 TB0OUTH SVMOUT 44 P4 0 PM_UCB1STE PM_UCA1CLK 45 P4 1 PM_UCB1SIM...

Page 32: ...ed preproduction note 4 Changed settings and figure in Quick Start 4 Changed text and figure in Interface Adapter 6 Instructions and figures updated in Battery Management Studio Software 7 Changed fig...

Page 33: ...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 34: ...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 35: ...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 36: ...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 37: ...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 38: ...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 reproduction and display of thes...

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