BQ24045DSQT

具有 4.35V VABT 和温度感应功能的独立型单节电池 1A 线性电池充电器 10-WSON

Description

The bq2404x series of devices are highly integrated Li-Ion and Li-Pol linear chargers devices targeted at

space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

Features

• Charging

– 1% Charge Voltage Accuracy

– 10% Charge Current Accuracy

– Pin Selectable USB 100mA and 500mA Maximum Input Current Limit

– Programmable Termination and Precharge Threshold, bq24040 and bq24045

– High voltage 4.35V Chemistry Support with bq24045

• Protection

– 30V Input Rating; with 6.6V or 7.1V Input Overvoltage Protection

– Input Voltage Dynamic Power Management

– 125°C Thermal Regulation; 150°C Thermal Shutdown Protection

– OUT Short-Circuit Protection and ISET short detection

– Operation over JEITA Range via Battery NTC – 1/2 Fast-Charge-Current at Cold, 4.06V at Hot, bq24040 and bq24045

– Fixed 10 Hour Safety Timer, bq24040 and bq24045

• System

– Automatic Termination and Timer Disable Mode TTDM for Absent Battery Pack With Thermistor, bq24040 and bq24045

– Status Indication – Charging/Done

– Available in Small 2×2mm2 DFN-10 Package

– Integrated Auto Start Function for Production Line Testing, bq24041

Applications

• Smart Phones

• PDAs

• MP3 Players

• Low-Power Handheld Devices