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Datasheet Linear Technology LT1512IS8#TRPBF

ManufacturerLinear Technology
Part NumberLT1512IS8#TRPBF

SEPIC Constant-Current/Constant-Voltage Battery Charger


  • Download » Datasheet, PDF, 211 Kb, Revision: C
    LT1512 - SEPIC Constant-Current/ Constant-Voltage Battery Charger
    Docket ↓
    SEPIC Constant-Current/
    Constant-Voltage Battery Charger
    Features Description Charger Input Voltage May Be Higher, Equal to or
    Lower Than Battery Voltage
    n Charges Any Number of Cells Up to 30V*
    n 1% Voltage Accuracy for Rechargeable Lithium
    n 500kHz Switching Frequency Minimizes
    Inductor Size
    n 100mV Current Sense Voltage for High Efficiency
    n Battery Can Be Directly Grounded
    n Charging Current Easily Programmable or Shut Down The LTВ®1512 is a 500kHz current mode switching regulator
    specially configured to create a constant-current/constantvoltage battery charger. 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. n Applications Maximum switch current on the LT1512 is 1.5A. This allows ...



Package CodeS8


Battery ChemistryLi-Ion, Li-Polymer, NiCd, NiMH, Lead Acid
Charge TerminationExternal
Design ToolsLTspice File
Export Controlno yes/no
Float VoltageAdj V
Internal Pass Elementyes yes/no
Max Charge Current0.75 A
Number of Cells1 to 4 (Li), 1 to 12 (Ni)
Operating Temperature Range-40 to 85 °C
Type of ChargerSwitching, Buck-Boost
Vin Max29 V
Vin Min2.4 V

Eco Plan


Moldel Line

Series: LT1512 (10)

Manufacturer's Classification

  • Power Management > Battery Management > Battery Charger IC > Switching Battery Chargers | Buck/Boost Battery Chargers

Other Names:


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