LT1513CR#PBF - 

Battery Charger for 1 Cell of Lead Acid, Li-Ion, NiCd, NiMH battery, 25V in, 20V/2A charge, TO-252-7

LT1513CR#PBF - Battery Charger for 1 Cell of Lead Acid, Li-Ion, NiCd, NiMH battery, 25V in, 20V/2A charge, TO-252-7

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Product Overview

The LT1513CR#PBF is a SEPIC constant or programmable current/constant-voltage Battery Charger specially configured with 500kHz switching frequency. In addition to the usual voltage feedback node, it has a current sense feedback circuit for accurately controlling output current of a flyback or SEPIC (Single-Ended Primary Inductance Converter) topology charger. These topologies allow the current sense circuit to be ground referred and completely separated from the battery itself, simplifying battery switching and system grounding problems. In addition, these topologies allow charging even when the input voltage is lower than the battery voltage. The LT1513 can also drive a CCFL Royer converter with high efficiency in floating or grounded mode. Maximum switch current is 3A, this allows battery charging currents up to 2A for a single lithium-ion cell. Accuracy of 1% in constant-voltage mode is perfect for lithium battery applications.
  • Charger input voltage may be higher, equal to or lower than battery voltage
  • Charges any number of cells up to 20V
  • 1% Voltage accuracy for rechargeable lithium batteries
  • 100mV Current sense voltage for high efficiency
  • Battery can be directly grounded
  • Charging current easily programmable or shut down


Power Management

Product Information

Lead Acid, Li-Ion, NiCd, NiMH
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