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LTC4061-4.4 - Standalone Linear Li-Ion Battery Charger

This page provides the datasheet information for the LTC4061-4.4, a member of the LTC4061-44 Standalone Linear Li-Ion Battery Charger family.

Features

  • designed to maximize battery lifetime and reliability include NTC battery temperature sensing and the SmartStart charging algorithm. No external sense resistor or external blocking diode is required for charging due to the internal MOSFET architecture. Internal thermal feedback regulates the charge current to maintain a constant die temperature during high power operation or high ambient temperature conditions. The charge current is programmed with an external resistor. With power applied, the L.

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Full PDF Text Transcription

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■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Charge Current Programmable Up to 1A Charges Single-Cell Li-Ion Batteries Directly from USB Port Preset 4.375V Float Voltage with ±0.4% Accuracy Thermistor Input for Temperature Qualified Charging Input Supply Present Logic Output Thermal Regulation Maximizes Charge Rate Without Risk of Overheating Programmable Charge Current Detection/ Termination Programmable Charge Termination Timer Smart Pulsing Error Feature SmartStartTM Prolongs Battery Life 20µA Charger Quiescent Current in Shutdown Available in a Low Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package The LTC® 4061-4.4 is a full-featured, flexible, standalone linear charger for single-cell 4.375V Lithium-Ion batteries. It is capable of operating within USB power specifications.
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