onsemi PMIC - Battery Chargers NCP1835MN20R2G

The NCP1835MN20R2GOSTR-ND is an integrated linear charger designed for charging single-cell Li-Ion batteries using a constant current, constant voltage (CCCV) profile. It supports charge currents up to 1.0 A and features adjustable charge current settings ranging from 300 mA to 1.0 A. The device operates with a minimum input voltage of 2.4 V, making it compatible with various wall adapters, including current-limited sources to reduce power dissipation. Key features include integrated voltage and current regulation, thermal foldback for charge current, and pre-charge current for conditioning deeply discharged batteries. The NCP1835 also includes end-of-charge detection and maintains regulation even without a battery connected. It provides an open-drain output for charger status and fault alerts, as well as a 2.8 V output for powering additional subsystems when an adapter is present. The device is housed in a low-profile 3x3 mm DFN package and is available in Pb-free options. Typical applications include cellular phones, PDAs, MP3 players, and other battery-operated devices. The operating temperature range is from -20 to 70 ¬8C, with a maximum supply voltage of 7.0 V.