The LTC4058XEDD-4.2#TRPBF is a high-efficiency, standalone linear charger for single-cell lithium-ion batteries, crafted by Linear Technology. This compact and versatile charging solution is designed to simplify the charging process for portable electronic devices, ensuring a safe and reliable power management system.

Key Features

• Adjustable Charging Current: The device allows users to set the charge current from 150mA to 750mA, making it suitable for a wide range of battery capacities.
• Constant-Current/Constant-Voltage Operation: It operates with a constant-current/constant-voltage charge algorithm, which is the optimal method for charging lithium-ion batteries to ensure a full charge and extended battery life.
• Automatic Recharge: The LTC4058XEDD-4.2#TRPBF automatically initiates a new charging cycle if the battery voltage falls below an internal threshold, keeping the battery topped off.
• Charge Termination: The charger terminates the charge cycle once the charging current drops to a preset level after the final float voltage is reached, preventing overcharging and enhancing battery safety.
• Thermal Regulation: To protect the battery and the charger during high power or high ambient conditions, the device features thermal regulation that reduces charge current.
• No External MOSFET, Sense Resistor, or Blocking Diode Required: The integrated design minimizes external component count, which saves on board space and system cost.

Applications

With its advanced features and compact size, the LTC4058XEDD-4.2#TRPBF is ideal for portable electronic applications such as:

• Cellular Telephones
• Digital Cameras
• MP3 Players
• USB-Powered Devices
• Handheld Instruments

Package and Availability

The LTC4058XEDD-4.2#TRPBF is available in a small 10-lead DFN package, providing a compact footprint for space-constrained applications. The product is available in tape and reel format, denoted by the #TRPBF suffix, facilitating automated manufacturing processes.