BQ24300 - 具有 30V（最大值）Vin 和 5.5V LDO 输出的充电器前端保护 IC

BQ24300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，BQ24300是具有 30V（最大值）Vin 和 5.5V LDO 输出的充电器前端保护 IC，本站介绍了BQ24300的封装应用图解、特点和优点、功能等，并给出了与BQ24300相关的TI元器件型号供参考。

BQ24300 - 具有 30V（最大值）Vin 和 5.5V LDO 输出的充电器前端保护 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 bq24300 and bq24304 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 device operates like a linear regulator: for voltages up to the Input Overvoltage threshold, the output is held at 5.5V (bq24300), 5.0V (bq24305) or 4.5V (bq24304). In case of an input overvoltage condition, if the overvoltage condition persists for more than a few microseconds, the IC removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the current to a safe value for a blanking duration before turning the switch off. Additionally, the IC also monitors its own die temperature and switches off if it becomes too hot.

The IC also offers optional protection against reverse voltage at the input with an external P-channel MOSFET.

产品特性

Provides Protection for Three Variables:
- Input Overvoltage
- Input Overcurrent with Current Limiting
- Battery Overvoltage
30V Maximum Input Voltage
Optional Input Reverse Polarity Protection
High Immunity Against False Triggering Due to Voltage Spikes
Robust Against False Triggering Due to Current Transients
Thermal Shutdown
Enable Function
Small 2 mm × 2 mm 8-Pin SON Package
LDO Mode Voltage Regulation Options:
- 5.5V on bq24300
- 4.5V on bq24304
- 5.0V on bq24305
APPLICATIONS
- Bluetooth Headsets
- Low-Power Handheld Devices

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