LTC1731ES8-4.1#PBF - Linear Technology

The LTC1731ES8-4.1#PBF is a highly integrated charging IC designed by Linear Technology for single-cell lithium-ion batteries. This advanced charge management controller offers a compact and efficient solution for portable electronics, ensuring safe and reliable charging operations. With its precision end-of-charge control and multiple safety features, the LTC1731ES8-4.1#PBF is an excellent choice for applications requiring a high level of battery care and management.

Key Features:

• Precision Charge Voltage: The LTC1731ES8-4.1#PBF provides a precise 4.1V end-of-charge voltage with an accuracy of ±1%, ensuring the battery is charged to its optimal voltage for maximum capacity and longevity.
• Programmable Charge Current: Users can set the charge current with a single external resistor, allowing for customization to suit various battery sizes and requirements.
• Automatic Recharge: Once the battery voltage falls below a certain threshold after a full charge, the LTC1731ES8-4.1#PBF automatically initiates a recharge cycle, maintaining the battery at peak condition.
• Charge Status Output: The IC provides a status output that indicates when the battery is actively charging or has completed the charge cycle, which can be used to drive an external LED or interface with a microcontroller.
• Multiple Safety Features: The device includes safety features such as automatic shutdown if the battery temperature becomes too high, as well as preconditioning of deeply discharged cells and an automatic termination when the charge current falls below a certain level.
• Thermal Regulation: To protect the battery and circuitry, the LTC1731ES8-4.1#PBF reduces the charge current automatically if the die temperature exceeds a safe threshold.
• Low Power Dissipation: Its surface-mount SO-8 package ensures minimal power loss and excellent thermal performance, making it suitable for space-constrained applications.

Applications:

The LTC1731ES8-4.1#PBF is ideal for a wide range of portable devices, including:

• Cellular Phones
• Digital Cameras
• Portable Media Players
• Handheld Computers
• GPS Devices

With its precise charging control and comprehensive protection mechanisms, the LTC1731ES8-4.1#PBF from Linear Technology is a reliable and high-performance solution for modern single-cell lithium-ion battery charging needs.