BQ24315中文资料过压和过流保护 IC 及锂离子电池充电器前端保护 IC数据手册TI规格书

描述 Description

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.

特性 Features

• Provides Protection for Three Variables:
• 30V Maximum Input Voltage
• Robust Against False Triggering Due to Current Transients
• Enable Input
• 5.5V LDO Mode Voltage Regulation
• APPLICATIONS
• PDAs
• Low-Power Handheld Devices
• Bluetooth Headsets

PowerPAD Is a trademark of Texas Instruments