ONE CELL LITHIUM-ION / POLYMER BATTERY PROTECTION IC
UNISONIC TECHNOLOGIES CO., LTD UB2421
Preliminary CMOS IC
ONE CELL LITHIUM-ION / POLYMER BATTERY PROTECTION IC
DESCRI...
Description
UNISONIC TECHNOLOGIES CO., LTD UB2421
Preliminary CMOS IC
ONE CELL LITHIUM-ION / POLYMER BATTERY PROTECTION IC
DESCRIPTION
UTC UB2421 is a lithium-ion / lithium-polymer rechargeable battery protection IC incorporating high accuracy voltage detection circuits and delay circuits. It is suitable for protection of single cell lithium-ion / lithium polymer battery packs from overcharge, over discharge and over current. The tiny package required external few components make the UTC UB2421 be able to be applied to space limited battery pack.
FEATURES
* Wide supply voltage range: VDD=1.8V~9.0V * Ultra-low quiescent Current: IDD=3.0μA (VDD=3.9V) * Ultra-low power-down Current: IPD=0.1μA (VDD=2.0V) * Overcharge detection voltage: VOCU=4.30V±0.05V * Overcharge release voltage: VOCR=4.10V±0.05V * Overdischarge release voltage: VODL=2.40V±0.10V * Overdischarge release voltage: VODR=3.00V±0.10V * Over current detection voltage: VOI1=0.15V±0.03V * Short circuit detection voltage: VOI2=1.35V (Fixed) * Charger detection voltage: VCH=-0.7V * Delay times are generated by an internal circuit. (External capacitors are unnecessary.)
ORDERING INFORMATION
Ordering Number UB2421G-AG6-R Package SOT-26 Packing Tape Reel
MARKING
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QW-R502-321.e
Free Datasheet http://www.Datasheet4U.com
UB2421
PIN CONFIGURATION
Preliminary
CMOS IC
PIN DESCRIPTION
PIN NO. 1 2 3 4 5 6 PIN NAME OD CSI OC DS VDD VSS DESCRIP...
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