BQ24315 - 过压和过流保护 IC 和锂离子充电器前端保护 IC

BQ24315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，BQ24315是过压和过流保护 IC 和锂离子充电器前端保护 IC，本站介绍了BQ24315的封装应用图解、特点和优点、功能等，并给出了与BQ24315相关的TI元器件型号供参考。

BQ24315 - 过压和过流保护 IC 和锂离子充电器前端保护 IC - 电池监控,保护及认证解决方案 - 电池管理产品 - 德州仪器

产品描述

The bq24313 and bq24315 are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The output acts as a linear regulator. The output is regulated to VO(REG) for inputs between VO(REG) and the overvoltage threshold. If an input overvoltage condition occurs, the IC immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.

The IC can be controlled by a processor and also provides status information about fault conditions to the host.

产品特性

Provides Protection for Three Variables:
- Input Overvoltage, with Rapid Response in < 1 µs
- User-Programmable Overcurrent with Current Limiting
- Battery Overvoltage
30V Maximum Input Voltage
Supports up to 1.5A Input Current
Robust Against False Triggering Due to Current Transients
Thermal Shutdown
Enable Input
Status Indication — Fault Condition
5.5V LDO Mode Voltage Regulation
Available in Space-Saving Small 8 Lead 2mm ×2mm SON
APPLICATIONS
- Mobile Phones and Smart Phones
- PDAs
- MP3 Players
- Low-Power Handheld Devices
- Bluetooth Headsets

PowerPAD Is a trademark of Texas Instruments

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