BQ40Z80 2s-7s Battery Gauge Evaluation Module

Texas Instruments


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

Type: Design Kits & Evaluation Modules

Part number: BQ40Z80EVM-020

More details from Texas Instruments


Distributor SKU Stock Cost
Digi-Key 296-53095-ND 11 $178.80 Buy
Texas Instruments BQ40Z80EVM-020 66 $149.00 Buy
Texas Instruments BQ40Z80EVM-020 66 $149.00 Buy
Mouser Electronics 595-BQ40Z80EVM-020 7 $199.74 Buy
AVNET Express BQ40Z80EVM-020 $175.82 Buy
Arrow North American Components BQ40Z80EVM-020 0 $185.74 Buy
Verical Marketplace BQ40Z80EVM-020 175 $212.86 Buy

Technical Documents


Part Number Name Companion Part
BQ40Z80RSMT BQ40Z80RSMT Buy Datasheet
BQ40Z80RSMR BQ40Z80RSMR Buy Datasheet
BQ771817DPJT BQ771817DPJT Buy Datasheet
CSD18504Q5AT CSD18504Q5AT Buy Datasheet
CSD18540Q5BT CSD18540Q5BT Buy Datasheet
MSP430F5529IPNR MSP430F5529IPNR Buy Datasheet
TPD1E10B06 TPD1E10B06 Buy Datasheet
TPS76350DBVR TPS76350DBVR Buy Datasheet