R5432V503BB

R5432V SERIES 3 to 5 Cells Li-ion Battery Protector IC NO.EA-263-1600711 OUTLINE The R5432V is a high voltage CMOS-based protection IC for overcharge /discharge of rechargeable three-cell / four-cell / fivecell Lithium-ion / Lithium- polymer battery, further include a short circuit and the protection circuits against the excess discharge current and excess charge current. Each of these ICs is composed of eighteen voltage detectors (fourteen for 3cell protection type, sixteen for 4cell protection type), a reference circuit, a delay circuit, a short detector circuit, an oscillator, a counter and a logic circuit. The output of COUT is P-channel open-drain type, and DOUT is CMOS type. If the overcharge voltage or overcharge current is detected by the R5432V, after the preset output delay time, the output of COUT becomes Hi-Z. While the overdischarge voltage or current is detected, after the preset output delay time, the output of DOUT becomes ”L”. After detecting overcharge voltage, when the cell voltage returns lower than the overcharge released voltage, then overcharge is released and the output of COUT becomes “H”. After detecting overcharge current, by disconnecting a charger and connecting a load, then overcharge current is released and the output of COUT becomes “H”. After detecting overdischarge voltage, when the cell voltage becomes the released voltage from overdischarge or more, then overdischarge is released and the output of DOUT becomes “H”. After detecting overdi...