Описание
NCP1835 is an integrated linear charger specifically designed to charge 1-cell Li-ion batteries with a constant current, constant voltage (CCCV) profile. It can charge at currents of up to 1.0 A. Its low input voltage capability, adjustable charge current, ability to maintain regulation without a battery, and its onboard thermal foldback make it versatile enough to charge from a variety of wall adapters. The NCP1835 can charge from a standard voltage-source wall adapter as a CCCV charger, or from a current limited adapter to limit power dissipation in the pass device.
- Integrated Voltage and Current Regulation
- No External MOSFET, Sense Resistor or Blocking Diode Required
- Charge Current Thermal Foldback
- Integrated Precharge Current for Conditioning Deeply Discharged Battery
- Integrated End of Charge (EOC) Detection
- 1% Voltage Regulation
- 4.2 V or 4.242 V Regulated Output Voltage
- Regulation Maintained without a Battery Present
- Programmable Full Charge Current 3001000 mA
- OpenDrain Charger Status and Fault Alert Flags
- OpenDrain Charger Status and Fault Alert Flags
- Minimum Input Voltage of 2.4 V Allows Use of Current Limited Adapters
- Automatically Recharging if Battery Voltage Drops after Charging Cycle is Completed
- Pb-Free Packages are Available
- Cellular Phones, PDAs, MP3 Players, Battery Operated Devices
