S-8244 - BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)

Features 

(1) Internal high-precision voltage detector circuit 

Overcharge detection voltage range : 

 3.70 to 4.50 V : Accuracy of ± 25 mV (at +25 °C) 

 (at a 5 mV/step) Accuracy of ± 50 mV (at -40 to +85 °C) 

Hysteresis : 5 optional models available and selectable: 

  0.38±0.1 V, 0.25±0.07 V, 0.13±0.04 V, 0.045±0.02 V, None

(2) High withstand voltage device : Absolute maximum rating : 26 V 

(3) Wide operating voltage range : 3.6 V to 24 V (refers to the range in which the delay circuit can operate normally after overvoltage is detected) 

(4) Delay time during detection : Can be set by an external capacitor. 

(5) Low current consumption : At 3.5 V for each cell :  3.0 µA max. (+25 °C) 

At 2.3 V for each cell :  2.4 µA max. (+25 °C) 

(6) Output logic and form : 4 types 

CMOS output active “H” 

CMOS output active “L” 

Pch open drain output active “L” 

Nch open drain output active “H” 

(only CMOS output for 0.045 V hysteresis models)

(7) Lead-free products 

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