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Battery Charge Controllers | NCP1852
概览
NCP1852 是一款可全编程的单节锂离子电池开关电池充电器，适用于从 USB 标准输入电源和交流适配器电源进行充电。该器件集成了同步 PWM 控制器、功率 MOSFET 和整个充电周期监控，包括软件监控下的安全功能。可在系统和电池之间放置一个可选的电池 FET，以便隔离系统和为系统供电。
- Charging from USB compliant input supply and AC adaptor power source
- Smart Phones
- Tablets
- 1.8 A buck converter with integrated pass devices
- Input current limiting to comply to USB standard
- Automatic charge current for AC adaptor charging
- Input overvoltage protection up to +28 V / -20 V
- Factory mode
- 500 mA boosted supply for USB OTG peripherals
- Reverse leakage protection prevents battery discharge
- Protected USB Transceiver supply switch
- Dynamic power path with optional battery FET
- Battery temperature sensing for safe operation (JEITA)
- Safety timers
- Flag output for charge status and interrupts
- IC Control bus up to 3.4 MHz
- Handheld Devices
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