LTC4054LES5-4.2#TRPBF - Linear Technology's Standalone Linear Li-Ion Battery Charger

The LTC4054LES5-4.2#TRPBF is a sophisticated and compact single-cell lithium-ion battery charger manufactured by Linear Technology, which is now part of Analog Devices. Designed for simplicity and efficiency, this integrated circuit offers a complete charging solution for portable electronic devices without the need for additional external components.

Key Features

• High Efficiency: The LTC4054LES5-4.2#TRPBF is capable of charging batteries with an efficiency that minimizes heat generation, which is crucial for maintaining the longevity and reliability of both the charger and the battery.
• Adjustable Charge Current: The device allows the user to set the charge current from 150mA to 800mA, providing flexibility to charge various sizes of lithium-ion batteries.
• Presision Charge Voltage: This charger is designed to deliver a precise end-of-charge voltage of 4.2V, which is critical for achieving optimal battery performance and capacity.
• Thermal Regulation: To protect against overheating, the LTC4054LES5-4.2#TRPBF includes an internal thermal feedback mechanism that regulates the charge current, ensuring safe operation under all conditions.
• Automatic Recharge: The charger features an automatic recharge function, initiating a new charging cycle when the battery voltage falls below a certain threshold.
• No External MOSFET, Sense Resistor, or Blocking Diode Required: This feature simplifies the design and reduces the overall solution footprint, making it ideal for space-constrained applications.

Applications

The LTC4054LES5-4.2#TRPBF is particularly suited for portable electronic devices such as smartphones, digital cameras, MP3 players, and Bluetooth headsets. Its small form factor and ease of integration make it an excellent choice for compact, battery-powered applications where space is at a premium and efficient charging is essential.

Package and Availability

This charger comes in a low-profile (1mm) thinSOT package, which is perfect for slim and portable devices. The LTC4054LES5-4.2#TRPBF is also available in tape and reel packaging, denoted by the 'TRPBF' suffix, facilitating efficient handling and manufacturing for high-volume production.

Overall, the LTC4054LES5-4.2#TRPBF from Linear Technology stands out as a reliable, high-performance charging solution that simplifies the design of lithium-ion battery-powered systems.