Linear Technology LTC4001
The LTC4001 includes complete charge termination circuitry, automatic recharge and a ±1% 4.2V float voltage. The LTC4001 is available in a low profile (0.75mm) 16-lead (4mm × 4mm) QFN package.| Part No. | LTC4001 |
|---|---|
| Datasheet | LTC4001 Download |
| Manufacturer |  Linear Technology |
| Description | 2A Synchronous Buck Li-Ion Charger |
| Buy | Stock & Price |
FEATURES
Low Power Dissipation● 2A Maximum Charge Current
● 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
● Low Profile 16-Lead (4mm × 4mm) QFN Package
● DESCRIPTIO The LTC®4001 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. 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.
