TIDA-00238

bq27742 Complete Gauge and Protection For Single-Cell Li-ion Battery Packs

TIDA-00238

Design files

Overview

This reference design using bq27742 along with Battery Management Studio (Bqstudio) software provides the customer with tools for develpping a battery fuel gauge module for placement inside a lithium-based battery pack. Customers are able to configure the solution so that it can provide accurate battery fuel gauging information. The integrated protection functionality can also be evaluated with this design. It gives the customer information such as battery voltage, temperature measurement, and Remaining State of Charge through its RAM registers. It also allows the customer to evaluate the BQ27742 IC according to the datasheet

Features

Incoporates patented Impedance track Technology which maximizes battery usuage
Automatically adjusts for aging, self discharge as well as temperature effects on battery
Integrated hardware based protection ensures the safety of battery pack
I2C communication bus allows for system interaction and control over the battery

Personal electronics

Chromebook & WOA

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Design files & products

Design files

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Test report — TIDA-00238

TIDU460.PDF (209 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

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Schematic — TIDA-00238

TIDR934.PDF (98 K)

Detailed schematic diagram for design layout and components

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Bill of materials (BOM) — TIDA-00238

TIDR937.PDF (76 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

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Gerber file — TIDA-00238

TIDC536.ZIP (1003 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

Battery fuel gauges

BQ27742-G1 — Single cell Li-ion battery fuel gauge with integrated protection | battery gas gauge

Data sheet: PDF | HTML

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Hardware

Evaluation board

BQ27742EVM — bq27742-G1 Single Cell Li-ion Battery Fuel (Gas) Gauge Programmable Evaluation Module

The BQ27742EVM along with Battery Management Studio software provide the customer with tools for developing a battery fuel gauge module for placement inside a lithium-based battery pack. Customers are able to configure the BQ27742EVM so that it can provide accurate battery fuel gauging (...)

User guide: PDF

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Technical documentation

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	Type	Title		Date
	Test report	TIDA-00238 Test Results		Jul. 28, 2014

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