Datasheet Linear Technology LTC4066EUF-1#PBF — Ficha de datos

LTC4066/LTC4066-1
USB Power Controller and
Li-Ion Linear Charger with
Low Loss Ideal Diode
DESCRIPTION FEATURES n Seamless Transition Between Input Power Sources:
Li-Ion Battery, USB and 5V Wall Adapter
Low Loss (50mО©) Ideal Diode Path from BAT to OUT
Programmable Charge Current Detection (CHRG)
Load Dependent Charging Guarantees USB Input
Current Compliance
Analog Gas Gauge Function
Charges Single Cell Li-Ion Batteries Directly from
USB Port
Constant-Current/Constant-Voltage Operation with
Thermal Feedback to Maximize Charging Rate
Without Risk of Overheating*
Selectable 100% or 20% Current Limit
(e.g., 500mA/100mA)
Termination Timer Adapts to Actual Charge Current
Preset 4.2V Charge Voltage with 0.8% Accuracy
(4.1V for LTC4066-1)
NTC Thermistor Input for Temperature Qualified
Charging …