1-    CELL LITHIUM-ION/POLYMER BATTERY PROTECTION IC

DESCRIPTION

UTC UB211C is a series of lithium-ion / lithium-polymer

rechargeable battery protection ICs incorporating high accuracy

voltage detection circuits and delay circuits.

UTC UB211C is suitable for protection of single cell lithium-ion /

lithium polymer battery packs from overcharge, over discharge and

over current.

The ultra-small package and less requirement of external

components make it ideal to integrate the UTC UB211C into the

limited space of battery pack.

FEATURES

* Wide Supply Voltage Range: VDD=1.5V~8.0V

* Ultra-Low Quiescent Current: IOPE=3.0μA (VDD=3.5V)

* Ultra-Low Power-Down Current: IPDN=0.2μA (VDD=1.5V)

* Overcharge Detection Voltage: VCU=3.9V~4.4V

* Overcharge Release Voltage: VCL=3.8V~4.4V

* Over Discharge Release Voltage: VDL=2.0V~3.0V

* Over Discharge Release Voltage: VDU=2.0V~3.4V

* Discharge Over Current Detection Voltage: VDOIV=0.05V~0.30V

* Discharge Short Circuit Detection Voltage: VSHORT=0.5V (Fixed)

* Charge Over Current Voltage: VCOIV=-0.1V (Fixed)

* Charger Detection Voltage: VCHA=-0.7V (Fixed)

* Delay Times are Generated by an Internal Circuit. (External Capacitors are Unnecessary.)