UB2421 ic equivalent, one cell lithium-ion / polymer battery protection ic.
* 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.
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