NCP1852: Switching Battery Charger, 1.8 A, with Overvoltage Protection
The NCP1852 is a fully programmable single cell Lithium-ion switching battery charger optimized for charging from a USB compliant input supply and AC adaptor power source. The device integrates 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.
Features- 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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Applications- Charging from USB compliant input supply and AC adaptor power source
| End Products |
Data Sheets (1)
Package Drawings (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCP1852AFCCT1G | Active | Pb-free
Halide free | Flip-Chip-25 | 499BN | 1 | Tape and Reel | 3000 | $0.7333 |
| NCP1852FCCT1G | Last Shipments | Pb-free
Halide free | Flip-Chip-25 | 499BN | 1 | Tape and Reel | 3000 | |
Specifications
| Product | Type | Number of Cells Charged | VCC Min (V) | VCC Max (V) | ID Max (µA) |
|---|
| NCP1852AFCCT1G | Li-Ion/Polymer | 1 | 3.6 | 7 | 5 |
