onsemi NCP185x programmable switching battery chargers
The NCP185 series includes fully programmable single cell Lithium−ion switching battery chargers.
The NCP185 series includes fully programmable single cell Lithium−ion switching battery chargers which are optimized for charging from a USB compliant input supply and AC adaptor power source. The devices are integrating a synchronous PWM controller, power MOSFETs, and the entire charge cycle monitoring including safety features under software supervision. An optional battery FET can be placed between the system and the battery in order to isolate and supply the system.
Key features
- Input Current Limiting to Comply to USB Standard
- Automatic Charge Current for AC Adaptor Charging
- High Accuracy Voltage and Current Regulation
- Input Overvoltage Protection up to +28 V
Additional features
- 1.5 - 2.5 A Buck Converter with Integrated Pass Devices
- Input Current Limiting to Comply to USB Standard
- Automatic Charge Current for AC Adaptor Charging
- High Accuracy Voltage and Current Regulation
- Input Overvoltage Protection up to +28 V
- Factory Mode
- 0.25 - 1 A Boosted Supply for USB OTG Peripherals
- Reverse Leakage Protection Prevents Battery Discharge
- Protected USB Transceiver Supply Switch
- Dynamic Power Path with Optional Battery FET
- Silicon Temperature Supervision for Optimized Charge Cycle
- Safety Timers
- Flag Output for Charge Status and Interrupts
- I2C Control Bus up to 3.4 MHz
Applications
- Smart Phone
- Handheld Devices
- PDAs
- Tablets
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