The NCP1800 is a constant current, constant voltage (CCCV) lithium ion battery charge controller designed for single-cell applications. It features integrated voltage and programmable current regulation, cell conditioning for deeply discharged cells, and end-of-charge detection.
The device includes safety shutoffs for input over/under voltage lockout and battery removal. It provides a charger status output suitable for LED indicators or host processor interfaces to indicate charging states such as pre-charge, full charge, and fault conditions.
| Supply Voltage (Vcc) | 2.5 to 16 V |
|---|---|
| Operating Ambient Temperature | -20 to +85 °C |
| Termination Current | 10% of full charge current (0.1 C) |
| Battery Drain Current (Vcc = Ground) | < 0.5 pA |
The NCP1800 is a constant current, constant voltage (CCCV) lithium ion battery charge controller.
There is virtually zero drain on the battery when the input power is removed.