R5432V SERIES
3 to 5 Cells Li-ion Battery Protector IC
NO.EA-263-1600711
OUTLINE
The R5432V is a high voltage CMOS-ba...
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...