LTC4061-4.4 - LTC4061-4.4是Standalone Linear Li-Ion Battery Charger with Thermistor Input

LTC4061-4.4是LINEAR凌力尔特公司的一款线性充电器产品，LTC4061-4.4是LTC4061-4.4是Standalone Linear Li-Ion Battery Charger with Thermistor Input，本站介绍了LTC4061-4.4的封装应用图解、特点和优点、功能等，并给出了与LTC4061-4.4相关的LINEAR元器件型号供参考。

LTC4061-4.4 - LTC4061-4.4是Standalone Linear Li-Ion Battery Charger with Thermistor Input - 线性充电器 - 电源管理 - 凌力尔特

LTC4061-4.4 - Standalone Linear Li-Ion Battery Charger with Thermistor Input

LTC4061-4.4 - Standalone Linear Li-Ion Battery Charger with Thermistor Input - Linear Technology（凌力尔特）

功能描述

The LTC4061-4.4 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.

Both programmable time and programmable current based termination schemes are available. Furthermore, the CHRG open-drain status pin can be programmed to indicate the battery charge state according to the needs of the application. Additional safety 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 LTC4061-4.4 can be put into shutdown mode to reduce the supply current to 20μA and the battery drain current to less than 5μA.

Other features include smart recharge, USB C/5 current programming input, undervoltage lockout and AC Present logic output.

特点

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