LM3622 Description
The LM3622 is a charge controller for Lithium-Ion batteries. This monolithic integrated circuit accurately controls an external pass transistor for precision Lithium-Ion battery charging. The LM3622 provides a constant voltage or constant current (CVCC) configuration that changes, as necessary, to optimally charge lithium-ion battery cells.
LM3622 Key Features
- 2 Versions for charging of 1 cell (4.1V or 4.2V) or 2 cells (8.2V or 8.4V)
- Versions for coke or graphite anode
- Precision (±30mV/cell) end-of-charge control
- Wide input range: 4.5V-24V
- Low battery drain leakage: 200nA
- 15 mA available to drive low cost PNP