R5421N148C Datasheet PDF - Ricoh

●Li-Ion BATTERY PROTECTOR The R5421NxxxC/F Series are protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion (Li+) excess load current, further include a short circuit protector for preventing large external short circuit current. Each of these ICs is composed of three voltage detectors, a reference unit, a delay circuit, a short circuit protector, and a logic circuit. APPLICATIONS Li+ one-cell protector for battery pack High precision protectors for cell-phones and any other gadgets using on board Li+ one-cell battery