LTC1732EMS-4#PBF - 

Battery Charger for 1 Cell of Li-Ion, NiCd, NiMH battery, 12V input, 4.2V / 585mA charge, MSOP-10

LTC1732EMS-4#PBF - Battery Charger for 1 Cell of Li-Ion, NiCd, NiMH battery, 12V input, 4.2V / 585mA charge, MSOP-10

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Product Overview

The LTC1732EMS-4#PBF is a complete constant-current/constant voltage Linear Charger Controller for Li-ion batteries. Nickel-cadmium (NiCd) and nickel metal hydride (NiMH) batteries can also be charged with constant current using external termination. Charge current can be programmed with 7% accuracy using external sense and program resistors. An internal resistor divider and precision reference set the final float voltage with 1% accuracy. The SEL pin allows users to charge either 4.1 or 4.2V cells. When the input supply is removed, the LTC1732 automatically enters a low current sleep mode, dropping the battery drain current to 7µA. An internal comparator detects the end-of-charge (C/10) condition while a programmable timer, using an external capacitor, sets the total charge time. Fully discharged cells are automatically trickle charged at 10% of the programmed current until cell voltage exceeds 2.457V.
  • Complete linear charger controller for 1-cell Li-ion batteries
  • Preset charge voltage with 1% accuracy
  • Programmable charge current
  • C/10 charge current detection output
  • Programmable charge termination timer
  • Automatic trickle charge of low voltage cells
  • Programmable for constant-current-only mode
  • Battery insertion detect


Power Management, Computers & Computer Peripherals, Portable Devices, Consumer Electronics, Communications & Networking

Product Information

Li-Ion, NiCd, NiMH
MSL 1 - Unlimited
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