The LTC4068EDD-4.2#TRPBF is a versatile and highly integrated battery charger and power management IC from Linear Technology, which is now part of Analog Devices. This sophisticated component is designed to optimize the charging process of single-cell lithium-ion or lithium-polymer batteries, making it an essential part of portable electronic devices where efficient charging is crucial.

Key Features

• Automatic Recharge: The chip features an automatic recharge function that initiates a new charging cycle once the battery voltage falls below a preset threshold, ensuring that the device is always ready for use.
• Programmable Charge Current: Users can set the charge current from 15mA to 750mA through a single resistor, providing flexibility to match the charging requirements of different battery capacities.
• Thermal Regulation: To ensure safety and maintain longevity of the battery, the LTC4068EDD-4.2#TRPBF includes thermal regulation that prevents overheating during the charging process.
• Charge Status Output: An onboard charge status output allows for real-time monitoring of the charging process, which can be used to drive an external LED indicator or interface with a microcontroller for detailed charge monitoring.
• No External MOSFET, Sense Resistor, or Blocking Diode Required: The IC's internal design eliminates the need for these external components, reducing the overall solution footprint and simplifying the circuit design.

Applications

The LTC4068EDD-4.2#TRPBF is ideal for a wide range of applications, including:

• Portable medical devices
• Handheld instruments
• Personal digital assistants (PDAs)
• Cellular phones
• MP3 players
• Stand-alone chargers

Package and Availability

This product is offered in a small 10-pin (3mm x 3mm) DFN package, which is suitable for space-constrained applications. The LTC4068EDD-4.2#TRPBF is also available in tape and reel packaging, denoted by the TRPBF suffix, making it ideal for automated manufacturing processes.

With its combination of advanced features and compact design, the LTC4068EDD-4.2#TRPBF stands out as a high-performance solution for efficient and reliable battery charging in modern electronic devices.