LM3420 Datasheet PDF - National

General Description

●The LM3420 series of controllers are monolithic integrated circuits designed for charging and end-of-charge control for Lithium-Ion rechargeable batteries. The LM3420 is available in five fixed voltage versions for one through four cell charger applications (4.2V, 8.2V/8.4V, 12.6V and 16.8V respectively).

●Features

●Voltage options for charging 1, 2, 3 or 4 cells

●Tiny SOT23-5 package

●Precision (0.5%) end-of-charge control

●Drive capability for external power stage

●Low quiescent current, 85 µA (typ.)