BQ78Z100EVM-532

bq78z100EVM 1s-2s Li-ion Battery Pack Manager Evaluation Module

BQ78Z100EVM-532

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Overview

The bq78z100EVM-532 evaluation module (EVM) is a complete evaluation system for the bq78z100 or bq294502 battery management system. The EVM includes one bq78z100 and bq294502 circuit module and a link to Windows™ based PC software. The circuit module includes one bq78z100  integrated circuit (IC), one bq294502 IC, and all other onboard components necessary to monitor and predict capacity, perform cell balancing, monitor critical parameters, protect the cells from overcharge, over-discharge, short-circuit, and over-current in 1- or 2-series cell Li-ion or Li-polymer battery packs. The circuit module connects directly across the cells in a battery. With the EV2400 interface board and software, the user can read the bq78z100 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 using HDQ communication protocol.

Features
  • Complete evaluation system for the bq78z100EVM 1s-2s Battery Pack Manager Evaluation Module and bq294502 independent overvoltage protection IC
  • Populated circuit module for quick setup
  • Software that allows data logging for system analysis

Cable to connect the EVM to an EV2400 (CBL002)

Battery fuel gauges
BQ78Z100 Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series

 

Battery protectors
BQ294502 Overvoltage Protection Device for 2- to 3-Cell Li-Ion Batteries, with 4.35v OVP

 

MOSFETs
CSD16412Q5A 25-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 16 mOhm
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Evaluation board

BQ78Z100EVM-532 — bq78z100EVM 1s-2s Li-ion Battery Pack Manager Evaluation Module

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Firmware

BQ28Z610-DEVICE-FW — Firmware for BQ28Z610 family of gauges

Supported products & hardware
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BQ28Z610-DEVICE-FW Firmware for BQ28Z610 family of gauges

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Latest version
Version: R1B
Release date: 07 Sep 2023

BQ28Z610-R1 Gauging Firmware (Rev. B)

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Products
Battery fuel gauges
BQ28Z610 Battery fuel gauge with integrated protector for 1-2 series packs BQ28Z610-R1 Battery fuel gauge with integrated protector for 1-2 series packs BQ78Z100 Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series
Hardware development
Evaluation board
BQ28Z610EVM-532 BQ28Z610 1-Cell to 2-Cell Programmable Battery Manager Evaluation Module BQ78Z100EVM-532 bq78z100EVM 1s-2s Li-ion Battery Pack Manager Evaluation Module

Documentation

BQ28Z610-R1B Technical Reference Manual(TRM)

Release Infomation

Description

The R1B version of BQ28Z610-DEVICE-FW is a firmware (FW) upgrade for the BQ78Z100 hardware. It is identical to BQ28Z610-R1. Programming the R1B firmware on BQ78Z100 hardware will effectively convert the BQ78Z100 to a BQ28Z610-R1(Rev. A). BQ28Z610-R1 is a highly integrated, accurate, 1-series to 2-series cell gas gauge with protection solution, providing autonomous charger control and cell balancing. This firmware is compatible with bq28z610-R1 hardware. Note: This firmware is not compatible with bq28z610 hardware.

Features

  • Autonomous battery charging control, using a dedicated Main mode I²C interface
  • Cell balancing with an internal bypass to optimize battery health
  • A high-side protection N-channel FET drive enables serial bus communication during fault conditions
  • Programmable protection levels for voltage, current and temperature
  • Support for simultaneous current and voltage sampling
  • Supports battery trip point (BTP) function for Windows integration
  • SHA-1 authentication responder for increased battery pack security
  • 400-kHz I²C bus communications interface for high-speed programming and data access

What's new

  • Identical to BQ28Z610 R1 (Rev. A)
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* EVM User's guide bq78z100EVM 1s-2s Li-ion Battery Pack Manager Evaluation Module 14 Sep 2015
Certificate BQ78Z100EVM-532 EU Declaration of Conformity (DoC) 02 Jan 2019

Related design resources

Hardware development

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

Software development

APPLICATION SOFTWARE & FRAMEWORK
BQSTUDIO Battery Management Studio (bqStudio) Software

Support & training

TI E2E™ forums with technical support from TI engineers

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