Datasheet Consonance CN3165

CONSONANCE
Lithium Ion Battery Charger for Solar-Powered Systems CN3165
General Description: Features: The CN3165 is a complete constant-current /constant
voltage linear charger for single cell Li-ion and Li
Polymer batteries. The device contains an on-chip
power MOSFET and eliminates the need for the
external sense resistor and blocking diode. An
on-chip adaptive cell can adjust charging current
automatically based on the output capability of input
power supply, so CN3165 is ideally suited for solar
powered system. Thermal feedback regulates the
charge current to limit the die temperature during
high power operation or high ambient temperature.
The regulation voltage is internally fixed at 4.2V
with 1% accuracy, it can also be adjusted upwards
with an external resistor. The charge current can be
set externally with a single resistor. When the input
supply is removed, the CN3165 automatically enters
a low power sleep mode , dropping the battery drain
current to less than 3uA. Other features include
undervoltage lockout, automatic recharge, battery
temperature sensing and charging/termination
indicator. …