Datasheet Summary
ISL9220, ISL9220A
Switching Charger for 1-Cell and 2-Cell Li-ion Batteries
FN6936 Rev 3.00 February 16, 2012
The ISL9220, ISL9220A is a cost-effective and versatile battery charger for 1-cell and 2-cell Li-ion and Li-Polymer based portable applications.
The device Features synchronous PWM technology, maximizing power efficiency, thus minimizing charge time and heat. The 1.2MHz switching frequency allows use of small external inductors and capacitors.
A simple charge current programming method is provided. External resistors program the fast charge and end-of-charge currents.
The two status outputs can be used to drive LEDs, or can be connected to host processor.
A programmable...
