Ricoh 1CELL Manuals

RICOH R5400N Series Li-ion/polymer 1Cell Protector Manual

The R5400N Series are high input voltage CMOS-based protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion (Li-ion) / Lithium polymer excess load current, further include a short circuit protector for preventing large external short circuit current and excess discharge-current. Each of these ICs is composed of three voltage detectors, reference units, a delay circuit, a short circuit detector, an oscillator, a counter, and a logic circuit. SOT-23-5 package is available.