UB24205

DESCRIPTION

The UTC UB24205 is a lithium-ion / lithium-polymer rechargeable

battery protection IC with internal MOSFETs. It incorporates high

accuracy voltage detection circuits and delay circuits.

The UTC UB24205 is suitable for protection of single cell

lithium-ion / lithium polymer battery packs from overcharge, over

discharge and over current.

The small package and less required external components make

it ideal to be integrated into limited space of battery pack.

FEATURES

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

* Ultra-low quiescent current:  I DD =3.0μA (V DD =3.9V)

* Ultra-low power-down current:  I PD =0.1μA (V DD =2.0V)

* Overcharge detection voltage:  V OCU =4.250V±0.050V

* Overcharge release voltage:  V OCR =4.055V±0.050V

* Over discharge release voltage:  V ODL =2.250V±0.100V

* Over discharge detection voltage: V ODR =2.850V±0.100V

* Over current detection voltage:  V OI1 = 0.150V±0.030V

* Short circuit detection voltage:  V OI2 =1.35V (Fixed)

* Charger detection voltage:  V CH =-0.7V

*

Reset resistance for over current

protection:  R SHORT >500kΩ

* No external MOSFETs 

*

Delay times are generated by an internal circuit

(External capacitors are unnecessary).

* Halogen Free

规格书UB24205