DESCRIPTION

UTC UB242 is a series of lithium-ion / lithium-polymer rechargeable battery protection ICs incorporating high accuracy voltage detection circuits and delay circuits.

FEATURES

* Wide supply voltage range: VDD=1.8V~9.0V

* Ultra-low quiescent current: IDD=3.0μA (VDD=3.9V)

* Ultra-low power-down current: IPD=0.1μA (VDD=2.0V)

* Overcharge detection voltage: VOCU=4.200V~4.400V

* Overcharge release voltage: VOCR=4.005V~4.225V

* Over discharge detection voltage : VODL=2.15V~3.00V

* Over discharge release voltage: VODR=2.32V~3.10V

* Over current detection voltage: VOI1=0.05V~0.20V

* Short circuit detection voltage: VOI2=1.35V (Fixed)

* Charger detection voltage: VCH=-0.7V Reset resistance for over current protection: RSHORT＞ 500kΩ

* Delay times are generated by an internal circuit. (External capacitors are unnecessary.)