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Home > Li-Battery Protection or Charg
UB241 Datasheet






The UTC UB241 is a series of lithium-ion/lithium-polymer

rechargeable battery protection ICs incorporating high accuracy

voltage detection circuits and delay circuits.

The UTC UB241 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 required external components

make it ideal to integrate the UTC UB241 into the limited space of

battery pack.




* 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

* Over Current 1 Detection Voltage: VIOV1=0.05V~0.30V

* Over Current 2 Detection Voltage: VIOV2=0.5V (Fixed)

* Short Circuit Detection Voltage: VSHORT=-1.2V (Fixed, based on VDD)

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

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

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