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R5422N112E Dataheets PDF



Part Number R5422N112E
Manufacturers RICOH
Logo RICOH
Description Li-Ion BATTERY PROTECTOR
Datasheet R5422N112E DatasheetR5422N112E Datasheet (PDF)

PRELIMINARY ’99.12.9 Li-Ion BATTERY PROTECTOR R5422NxxxC/xxxE series n OUTLINE The R5422NxxxC/E 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. When charging voltage crosses the detector thresh.

  R5422N112E   R5422N112E



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PRELIMINARY ’99.12.9 Li-Ion BATTERY PROTECTOR R5422NxxxC/xxxE series n OUTLINE The R5422NxxxC/E 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. When charging voltage crosses the detector threshold from a low value to a value higher than VDET1, the output of COUT pin, the output of over-charge detector/VD1, switches to low level, charger's negative pin level after the delay time by setting an external capacitor. After detecting over-charge the VD1 can be reset and the output of COUT becomes high when the VDD voltage is coming down to a level lower than “VREL1”, or when a kind of loading is connected to VDD after a charger is disconnected from the battery pack while the VDD level .


R5422N111E R5422N112E GBPC4000PS


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