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Home > Li-Battery Protection or Charg
UB280 Datasheet





The UTC UB280 is a series of lithium-ion/lithium-polymer rechargeable battery protection ICs incorporating high accuracy voltage detection circuits and delay circuits. The UTC UB280 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 UB280 into the limited space of battery pack.




* Wide Supply Voltage Range: VDD=1.5V~10V

* Ultra-Low Quiescent Current: IOPE=3.0μA (VDD=3.9V)

* Ultra-Low Power-Down Current: IPDN=0.2μA (VDD=2.0V)

* Overcharge Detection Voltage: VDET1=4.05V~4.35V

* Overcharge Release Voltage: VREL1=3.8V~4.25V

* Over Discharge Detection Voltage: VDET2=2.2V~3.1V

* Over Discharge Release Voltage: VREL2=2.3V~3.3V

* Discharge Over Current Detection Voltage: VDET3=0.07V~0.23V

* Discharge Short Circuit Detection Voltage: VSHORT=0.9V

* Over Voltage Charger Detection Voltage: VCHG1=11V

* Charger Detection Voltage: VCHA=-0.7V

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


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