BQ40Z80 2s-7s Battery Gauge Evaluation Module
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Description & Features

Technical documentation

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Key Document


The bq40z80 EVM includes one bq40z80, two bq771807 secondary protectors, and a link to Microsoft Windows based PC software, which can be used to monitor and predict capacity, perform cell balancing, monitor critical parameters, protect the cells from overcharge, over-discharge, short circuit, and overcurrent in 2-, 3-, 4-, 5-, 6-, or 7-series cell Li-ion or Li-polymer battery packs. The circuit includes an on-board EV2400 interface to USB so the software can read bqz40z80 data registers, program the chipset for different pack configurations, log cycling data for further evaluation, and evaluate the overall functionality of the solution under different charge and discharge conditions.

  • 2s-7s battery gauging with protection
  • Supports internal and external cell balancing
  • Multiple GPIOs and LED support
  • Protection features include:
    • Oover and under voltage
    • Short circuit in charge and discharge
    • Charge and pre-charge timeout
    • Over and under temperaure

What's Included

  • BQ40Z80EVM-020 evaluation module
  • USB cable

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BQ40Z80 2s-7s Battery Gauge Evaluation Module


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Technical documentation
User guides (1)
Title Type Size (KB) Date
PDF 3075 01 Nov 2018
More literature (1)
Title Type Size (KB) Date
PDF 38 02 Jan 2019

Software development (1)

Name Part Number Software Type
Battery Management Studio (bqStudio) Software  BQSTUDIO  Application software & frameworks 

TI Devices (7)

Part Number Name Product Family
BQ40Z80  2-s to 7-s battery pack manager with Impedance Track™ gas gauging  Battery management ICs 
BQ7718  Family 2-5S Overvoltage Protector with Internal Delay Timer  Battery management ICs 
CSD18504Q5A  40V, N ch NexFET MOSFET™, single SON5x6, 6.6mOhm  MOSFETs 
CSD18540Q5B  60V, N ch NexFET MOSFET™, single SON5x6, 2.2mOhm  MOSFETs 
MSP430F5529  25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, Comparator, DMA, UART/SPI/I2C, USB, HW Multiplier  Microcontrollers (MCU) 
TPD1E10B06  Single-channel ESD in 0402 package with 10pF capacitance and 6-V breakdown  Circuit protection ICs 
TPS763  150-mA, 10-V, low-dropout voltage regulator with enable  Power management 

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