BQ76940EVM

BQ76940 evaluation board with BQ78350

BQ76940EVM

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Overview

The bq76940EVM is a populated circuit board for evaluation of the bq76940 analog front-end (AFE) along with the bq78350 Battery Management Controller that serves as part of a complete pack monitoring and protection solution for 9 to 15-series Lithium Ion, Lithium iron phosphate, and more battery chemistries.  When used with an EV2400 interface adapter and appropriate evaluaton software available from the website, it provides a complete environment to evaluate register control of the AFE or the controller configuration and demonstrate current control of a battery system with the devices.

Features
  • Bq7694000 AFE IC
  • Bq78350 Battery Management controller
  • FETs for current control
  • Test point patterns for easy evaluation
Battery fuel gauges
BQ78350 Companion CEDV Fuel Gauge Battery Management Controller for bq76940 Monitor Family BQ78350-R1 CEDV li-ion gas gauge and battery management controller BQ78350-R1A CEDV li-ion gas gauge and battery management controller

 

Battery monitors & balancers
BQ76940 9 to 15-series cell li-ion and li-phosphate battery monitor (bq76940 family)

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Evaluation board

BQ76940EVM — µC-Controlled AFE Family for 5/10/15-Series Cell Li-Ion and Phosphate Evaluation Module

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Interface adapter

EV2400 — USB-Based PC Interface Board for Battery Fuel (Gas) Gauge Evaluation Module

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Not available on TI.com
Support software

bq76940/bq76930/bq76920 Evaluation Software (Rev. A) — SLUC539A.ZIP (2752KB)

Firmware

BQ78350-DEVICE-FW — BQ78350 family of gauges firmware

Supported products & hardware
Download options

BQ78350-DEVICE-FW BQ78350 family of gauges firmware

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Latest version
Version: R3-V3.00
Release date: 13 Jan 2023
lock = Requires export approval (1 minute)
Products
Battery fuel gauges
BQ78350 Companion CEDV Fuel Gauge Battery Management Controller for bq76940 Monitor Family BQ78350-R1 CEDV li-ion gas gauge and battery management controller BQ78350-R1A CEDV li-ion gas gauge and battery management controller
Hardware development
Evaluation board
BQ76940EVM BQ76940 evaluation board with BQ78350 BQ76920EVM

BQ76920 evaluation board with BQ78350 

BQ76930EVM

BQ76930 evaluation board with BQ78350

Documentation

Technical reference manual addendum for BQ78350-R3

Release Infomation

Overview

BQ78350 family of gauges firmware is a firmware-only release that can be flashed onto any existing BQ78350 hardware (such as the BQ78350, BQ78350-R1, BQ78350-R2, … devices). The firmware incorporates the CEDV Li-ion and LiFePO4 battery management controller to create a pack-based solution that provides a rich array of features for gas gauging, protection, authentication, and monitoring using the companion BQ769x0 family of analog front end (AFE) protection devices for upto 15-series cell Li-ion and Li-polymer battery packs.

The BQ78350-R1A device offers optional LED or LCD display configurations for capacity reporting. It also makes data available over its SMBus 1.1 interface. Battery history and diagnostic data is also kept within the device in non-volatile memory and is available over the same interface.

Features

The BQ78350-DEVICE-FW firmware is usable on any previous version of the BQ78350 hardware. Refer the release notes for more information.

What's new

  • This is a firmware only download
  • See Technical Reference Manual addendum for changes from the BQ78350-R1 device
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
Certificate BQ76940EVM EU Declaration of Conformity (DoC) 02 Jan 2019
User guide bq76930 and bq76940 Evaluation Module (Rev. C) 10 Dec 2018

Related design resources

Software development

APPLICATION SOFTWARE & FRAMEWORK
BQ-HI-PRODUCTION Production Application Software for Hi-Cell Count Battery Fuel (Gas) Gauges

Support & training

TI E2E™ forums with technical support from TI engineers

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