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电池保护器

BQ24381

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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

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BQ24381

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产品详情

Function Charger Front-End Protection Number of series cells (min) 1 Number of series cells (max) 1 Features LDO output, Overcurrent protection, Overvoltage, Short-circuit Discharge (SCD) Operating current (typ) (µA) 300 Rating Catalog Vin (max) (V) 30 Overvoltage protection 5 Operating temperature range (°C) -40 to 125 Battery overvoltage protection (min) (V) 4.35 Battery overvoltage protection (max) (V) 4.35
Function Charger Front-End Protection Number of series cells (min) 1 Number of series cells (max) 1 Features LDO output, Overcurrent protection, Overvoltage, Short-circuit Discharge (SCD) Operating current (typ) (µA) 300 Rating Catalog Vin (max) (V) 30 Overvoltage protection 5 Operating temperature range (°C) -40 to 125 Battery overvoltage protection (min) (V) 4.35 Battery overvoltage protection (max) (V) 4.35
WSON (DSG) 8 4 mm² 2 x 2
  • 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
  • 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

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.

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.
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类型 标题 下载最新的英语版本 日期
* 数据表 bq2438x Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC With LDO Mode 数据表 (Rev. C) PDF | HTML 2015年 8月 28日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
EVM 用户指南 bq2430x/1x DSG EVM (HPA245) for Li+ Charger Front End Protection IC (Rev. B) 2016年 11月 4日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

BQ24381EVM — BQ24381 评估模块

bq2430x/1x/8x 评估模块是一个完整的充电器模块，用于评估充电器前端保护和使用 bq2430x/1x/8x 和 bq24080 器件的充电器解决方案。本用户指南提供了测试概要信息、印制电路板布局指南、物料清单、板面布局和原理图。

用户指南: PDF
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WSON (DSG) 8 查看选项
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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