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Home > Li-Battery Protection or Charg
UB261 Datasheet

The UTC UB261 is a series of lithium-ion/lithium-polymer
rechargeable battery protection ICs incorporating high accuracy
voltage detection circuits and delay circuits.
The UTC UB261 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 UB261 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)
* Charger Detection Voltage: VCHA=-0.7V (Fixed)
* Delay Times are Generated by an Internal Circuit. (External Capacitors are Unnecessary.)
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