Battery Charger for 1 Cell of Li-Ion battery, 8V input, 4.2V / 950mA charge, DFN-11

LTC4075EDD#PBF - Battery Charger for 1 Cell of Li-Ion battery, 8V input, 4.2V / 950mA charge, DFN-11

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Product Overview

The LTC4075EDD#PBF is a dual input USB/AC adapter standalone Li-ion Battery Charger that is capable of charging a single-cell Li-ion battery from both wall adapter and USB inputs. The charger can detect power at the inputs and automatically select the appropriate power source for charging. No external sense resistor or blocking diode is required for charging due to the internal MOSFET architecture. Internal thermal feedback regulates the battery charge current to maintain a constant die temperature during high power operation or high ambient temperature conditions. The float voltage is fixed at 4.2V and the charge current is programmed with an external resistor. The LTC4075 terminates the charge cycle when the charge current drops below the programmed termination threshold after the final float voltage is reached.
  • Charges single-cell Li-ion batteries from wall adapter and USB inputs
  • Automatic input power detection and selection
  • Charge current programmable up to 950mA from wall adapter input
  • No external MOSFET, sense resistor or blocking diode required
  • Thermal regulation maximizes charging rate without risk of overheating
  • Preset charge voltage with ±0.6% accuracy
  • Programmable charge current termination
  • 18µA USB suspend current in shutdown
  • Independent power present status outputs
  • Charge status output
  • Automatic recharge


Industrial, Power Management, Communications & Networking, Portable Devices, Audio, Computers & Computer Peripherals

Product Information

MSL 1 - Unlimited
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