LTC4062 - LTC4062是具微功率比较器的独立型线性锂离子电池充电器

LTC4062是LINEAR凌力尔特公司的一款线性充电器产品，LTC4062是LTC4062是具微功率比较器的独立型线性锂离子电池充电器，本站介绍了LTC4062的封装应用图解、特点和优点、功能等，并给出了与LTC4062相关的LINEAR元器件型号供参考。

LTC4062 - LTC4062是具微功率比较器的独立型线性锂离子电池充电器 - 线性充电器 - 电源管理 - 凌力尔特

LTC4062 - 具微功率比较器的独立型线性锂离子电池充电器

LTC4062 - 具微功率比较器的独立型线性锂离子电池充电器 - Linear Technology（凌力尔特）

功能描述

The LTC4062 is a full-featured, flexible, standalone linear charger for single-cell 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. A precise low power comparator is available even with no power applied as long as battery voltage is higher than 2.5V. Additional safety features designed to maximize battery lifetime and reliability include 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 LTC4062 can be put into shutdown mode to reduce the supply current to 20μA and the battery drain current to less than 5μA. Without power applied, the internal low power comparator can work sinking only 10μA from the battery.

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

*Protected by U.S. Patents, including 6522118.

特点

Charge Current Programmable up to 1A

Charges Single Cell Li-Ion Batteries Directly from USB Port

Preset Float Voltage with ±0.35% Accuracy

Micropower Comparator for Battery Monitoring

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