Parts Consumer Electronics Battery Management TI BQ24xxx / BQ25xxx Battery Charge Family BQ24074RGTRG4 BQ24074RGTRG4

TIBQ24074RGTRG4

Texas Instruments

Battery Management Li-ion Batt Charger ALT 595-BQ24074RGTR ALT 595-BQ24074RGTR

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Overview

The BQ24074 is an integrated Li-ion linear charger and system power path management IC designed for space-constrained portable applications. It operates from either a USB port or AC adapter and supports charge currents up to 1.5 A. The device features dynamic power path management which allows the system to remain powered even while the battery is deeply discharged or removed.

Why Choose This Part

This IC integrates power path management, allowing the system to boot instantly from an external source even with a dead battery. It includes a 10.5V input overvoltage protection circuit and high-accuracy voltage and current regulation for safer charging. The Powerpath architecture also reduces the number of charge and discharge cycles on the battery, extending overall battery life.

Applications

Handheld Terminals

Ensures reliable power delivery and battery charging in portable scanners and data entry devices.

Wearable Devices

Provides high-accuracy charging and system power in compact form factors with integrated safety features.

Portable Medical Equipment

Offers robust power path management to ensure continuous operation of critical monitoring hardware.

USB-Powered Consumer Electronics

Simplifies the design of USB-rechargeable devices by managing input current limits and battery charging cycles.

Getting Started

Engineers can evaluate this part using the BQ24074EVM evaluation module, which provides access to all pins and includes jumpers for configuring charge rates and input limits. Design integration requires a few external resistors to set the fast-charge current and termination thresholds. Review the datasheet for thermal pad layout recommendations to ensure proper heat dissipation at higher charge currents.

Also Consider

BQ24075RGTR TITexas Instruments - Similar power path features but includes a SYSOFF pin to disconnect the battery and reduce leakage current during storage.