LM3621 Datasheet - National Semiconductor

LM3621 Single Cell Lithium-Ion Battery Charger Controller

The LM3621 is a full function constant voltage, constant current (CVCC) lithium-ion (Li+) battery charger controller. It provides 1% regulation accuracy over the specified temperature range without requiring the use of external precision resistors. The IC controls five charge modes: conditioning, fa.

LM3621 Features

* Automatic end-of-charge control Preset or user adjustable charge current regulation LED drivers for charging status and fault indication Battery self-discharge refresh (maintenance) Overvoltage/overcurrent fault detection and protection Defective battery pack detection Charge current boost control f

LM3621_NationalSemiconductor.pdf