BQ27421YZFT-G1B - Texas Instruments

Manufacturer Part Number

BQ27421YZFT-G1B

Manufacturer

Texas Instruments

Introduction

Integrated circuit (IC) for battery management

Designed for single-cell lithium-ion (Li-ion) and lithium-polymer (Li-poly) batteries

Product Features and Performance

Accurately monitors battery capacity, state-of-charge (SOC), and state-of-health (SOH)

Supports 1-series Li-ion/Li-poly battery packs

Provides accurate remaining battery life estimation

Implements Impedance Track™ technology for accurate fuel gauging

Includes low-power modes to extend battery runtime

Product Advantages

Precise battery fuel gauging

Reliable state-of-charge and state-of-health tracking

Power-saving features for extended battery life

Compatible with various battery chemistries

Key Technical Parameters

Operating temperature range: -40°C to 85°C

Package: 9-DSBGA (Die Size Ball Grid Array)

Mounting type: Surface mount

RoHS compliant

Quality and Safety Features

Protects against overcharge, overdischarge, and overcurrent

Includes safety and protection features for reliable operation

Compatibility

Suitable for use with 1-series Li-ion/Li-poly battery packs

Application Areas

Portable electronics

Wearable devices

Power tools

Battery-powered medical devices

Product Lifecycle

This product is currently available and not nearing discontinuation.

Replacement or upgrade options may be available from the manufacturer.

Key Reasons to Choose This Product

Accurate battery fuel gauging and state-of-health monitoring

Power-saving features for extended battery runtime

Reliable safety and protection mechanisms

Compatibility with various battery chemistries and portable electronics applications