Battery Charger for 1 Cell of Li-Ion battery, 5.5V input, 4.2V/2.2 A charge, QFN-16

LTC4001EUF#PBF - Battery Charger for 1 Cell of Li-Ion battery, 5.5V input, 4.2V/2.2 A charge, QFN-16

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Product Overview

The LTC4001EUF#PBF is a 2A Li-ion Battery Charger intended for 5V wall adapters. It utilizes a 1.5MHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation, an internal MOSFET and sense resistor allow a physically small charger that can be embedded in a wide range of handheld applications. The LTC4001 includes complete charge termination circuitry, automatic recharge and a ±1% 4.2V float voltage. Input short-circuit protection is included so no blocking diode is required. Battery charge current, charge timeout and end-of-charge indication parameters are set with external components. Additional features include shorted cell detection, temperature qualified charging and overvoltage protection.
  • Low power dissipation
  • No external MOSFETs
  • Sense resistor or blocking diode required
  • Remote sensing at battery terminals
  • Programmable charge termination timer
  • Preset 4.2V float voltage with ±0.5% accuracy
  • Programmable charge current detection/termination
  • Automatic recharge
  • Thermistor input for temperature qualified charging
  • Compatible with current limited wall adapters


Power Management, Portable Devices, Computers & Computer Peripherals

Product Information

MSL 1 - Unlimited
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377 in stock for next day delivery (UK stock)

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