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What is UB2421?

This electronic component, produced by the manufacturer "Unisonic Technologies", performs the same function as "ONE CELL LITHIUM-ION / POLYMER BATTERY PROTECTION IC".


UB2421 Datasheet PDF - Unisonic Technologies

Part Number UB2421
Description ONE CELL LITHIUM-ION / POLYMER BATTERY PROTECTION IC
Manufacturers Unisonic Technologies 
Logo Unisonic Technologies Logo 


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UNISONIC TECHNOLOGIES CO., LTD
UB2421
Preliminary
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
CMOS IC
„ MARKING
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
1 of 11
QW-R502-321.e
Free Datasheet http://www.Datasheet4U.com

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UB2421 equivalent
UB2421
Preliminary
„ TYPICAL APPLICATION CIRCUIT
CMOS IC
VBAT+
Battery
R1=100
VDD
C1=0.1µF
UB2421
DS
VSS
OD
CSI
OC
M1 M2
R2=1k
VBAT-
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
5 of 11
QW-R502-321.e
Free Datasheet http://www.Datasheet4U.com


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for UB2421 electronic component.


Information Total 11 Pages
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