Описание
The S-8244AAN series is used for secondary protection of lithium-ion batteries with from one to four cells, and incorporates a high-precision voltage detector circuit and a delay circuit. Short-circuiting between cells makes it possible for serial connection of one to four cells.
Internal high-precision voltage detector circuit Overcharge detection voltage range: 3.700 V to 4.550 V: Accuracy of ± 25 mV (at +25°C) (at a 5 mV/step) Accuracy of ± 50 mV (at -40°C to +85°C) Hysteresis: 5 types 0.38 ± 0.1 V, 0.25 ± 0.07 V, 0.13 ± 0.04 V, 0.045 ± 0.02 V, None High-withstand voltage: Absolute maximum rating: 26 V 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) Delay time during detection: Can be set by an external capacitor 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) Output logic and form: 5 types CMOS output active “H” CMOS output active “L” Pch open drain output active “L” Nch open drain output active “H” Nch open drain output active “L” (CMOS / Nch open drain output for 0.045 V hysteresis models) Lead-free, Sn 100%, halogen-free*1
