BQ24381 - 过压/过流保护 IC 和锂离子充电器前端保护 IC，具有 LDO 模式、7.1 OVP

BQ24381是TI德州仪器公司的一款电池监控,保护及认证解决方案产品，BQ24381是过压/过流保护 IC 和锂离子充电器前端保护 IC，具有 LDO 模式、7.1 OVP，本站介绍了BQ24381的封装应用图解、特点和优点、功能等，并给出了与BQ24381相关的TI元器件型号供参考。

BQ24381 - 过压/过流保护 IC 和锂离子充电器前端保护 IC，具有 LDO 模式、7.1 OVP - 电池监控,保护及认证解决方案 - 电池管理产品 - 德州仪器

产品特性

Input Overvoltage Protection
Accurate Battery Overvoltage Protection
Output Short-Circuit Protection
Soft-Start to Prevent Inrush Currents
Soft-Stop to Prevent Voltage Spikes
Maximum Input Voltage of 30 V
Supports up to 1.7-A Load Current
Thermal Shutdown
Enable Function
Fault Status Indication
Small 2 mm × 2 mm 8-Pin WSON Package

产品应用

Smart Phones, Mobile Phones
PDAs
MP3 Players
Low-Power Handheld Devices

产品说明

The bq2438x family of devices are charger front-end integrated circuits (ICs) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage and battery voltage. The device operates like a linear regulator, maintaining a 5.5-V (bq24380) or 5-V (bq24381, bq24382) output with input voltages up to the Input overvoltage threshold. During input overvoltage conditions, the device immediately turns off the internal pass FET disconnecting the charging circuit from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The device checks for short-circuit or overload conditions at its output when turning the pass FET on, and if it finds unsafe conditions, it switches off and then rechecks the conditions. Additionally, the device also monitors its die temperature and switches off if it exceeds 140°C.

When the device is controlled by a processor, the device provides status information about fault conditions to the host.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
bq24380	WSON (8)	2.00 mm × 2.00 mm
bq24381
bq24382

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