Product Overview: LTC4054ES5-3.3#TRPBF

The LTC4054ES5-3.3#TRPBF is a high-performance, standalone linear battery charger manufactured by Linear Technology, which is now part of Analog Devices. This compact and efficient charging solution is designed to charge single-cell lithium-ion batteries and is housed in a small SOT-23 package, making it an ideal choice for portable applications where space is at a premium.

Key Features

• Precision Charge Voltage: The LTC4054ES5-3.3#TRPBF offers a precise charge voltage of 4.2V, which is critical for maintaining the longevity and stability of lithium-ion batteries.
• Charge Current: It can deliver a programmable charge current up to 800mA, providing flexibility to accommodate various battery capacities and charging speed requirements.
• No External MOSFET, Sense Resistor, or Blocking Diode Required: Its integrated design simplifies the circuitry needed for charging, reducing the overall component count and system complexity.
• Thermal Regulation: This feature maximizes the charge rate without risk of overheating, ensuring safe operation across various environmental conditions.
• Automatic Recharge: The LTC4054ES5-3.3#TRPBF automatically initiates a new charge cycle when the battery voltage falls below an internal threshold, keeping the battery topped up.
• C/10 Charge Termination: The charger automatically terminates the charge cycle when the charge current drops to one-tenth of the programmed value, indicating the battery is fully charged.
• Charge Status Output: An onboard status output pin can be used to indicate the charging progress to the user or an external monitoring system.
• Low Battery Supply Drain: When not in charging mode, the device has a low supply current, preserving battery life.

Applications

The LTC4054ES5-3.3#TRPBF is well-suited for a myriad of portable electronic applications, including but not limited to:

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

With its ease of integration, comprehensive protection features, and compact form factor, the LTC4054ES5-3.3#TRPBF is an excellent choice for designers looking to implement a reliable and efficient charging solution in their next portable device project.