Datasheet Linear Technology LTC4057ES5-4.2#PBF — Ficha de datos

LTC4057-4.2
Linear Li-Ion Battery
Charger with Thermal
Regulation in ThinSOT
U FEATURES
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в–  DESCRIPTIO Programmable Charge Current up to 800mA
No External MOSFET, Sense Resistor or Blocking
Diode Required
Constant-Current/Constant-Voltage Operation with
Thermal Regulation Maximizes Charge Rate
Without Risk of Overheating*
Charges Single Cell Li-Ion Batteries Directly from
USB Port
Preset 4.2V Charge Voltage with В±1% Accuracy
Current Monitor Pin for Charge Termination
25ВµA Supply Current in Shutdown Mode
Low Battery Charge Conditioning (Trickle Charging) …