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UB2421 - ONE CELL LITHIUM-ION / POLYMER BATTERY PROTECTION IC

Datasheet Summary

Description

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.

Features

  • S.
  • Wide supply voltage range: VDD=1.8V~6.5V.
  • Ultra-low quiescent current: IDD=3.0μA (VDD=3.5V).
  • Ultra-low power-down current: IPD=0.2μA (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±0.05V.
  • Short circuit detection voltage: VOI2=1.35V (Fixed).
  • Charger.

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Datasheet preview – UB2421

Datasheet Details

Part number UB2421
Manufacturer UTC
File Size 370.35 KB
Description ONE CELL LITHIUM-ION / POLYMER BATTERY PROTECTION IC
Datasheet download datasheet UB2421 Datasheet
Additional preview pages of the UB2421 datasheet.

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Full PDF Text Transcription

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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. 4 5 6 23 1 SOT-26  FEATURES * Wide supply voltage range: VDD=1.8V~6.5V * Ultra-low quiescent current: IDD=3.0μA (VDD=3.5V) * Ultra-low power-down current: IPD=0.2μA (VDD=2.0V) * Overcharge detection voltage: VOCU=4.30V±0.
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