LT1555IGN#TRPBF - Single Cell Li-Ion Battery Charger IC

The LT1555IGN#TRPBF is a highly efficient integrated circuit (IC) designed by Linear Technology for charging single-cell lithium-ion (Li-Ion) batteries. This compact and versatile IC is an ideal solution for portable electronic devices that require a reliable and fast charging solution. With its advanced features and robust design, the LT1555IGN#TRPBF ensures safe and optimal charging performance for your Li-Ion battery-powered applications.

Key Features:

• High Efficiency: The LT1555IGN#TRPBF is designed to provide high charging efficiency, which helps in faster charging of batteries and reduced heat generation.
• Programmable Charging Current: The IC allows for the programming of the charge current up to 1.5A, enabling users to customize the charge rate according to the specific needs of their battery and application.
• Automatic Recharge: Once the charging cycle is complete, the IC automatically initiates a recharge cycle if the battery voltage falls below a preset threshold, ensuring the battery remains fully charged.
• Charge Status Indicators: The LT1555IGN#TRPBF includes status pins that can be used to drive LEDs or interface with a microcontroller to provide visual or digital indications of the charging process.
• Thermal Regulation: To protect the battery and circuitry, the IC features thermal regulation that reduces charge current if the junction temperature exceeds a preset limit.
• Low Dropout Voltage: The low dropout voltage feature ensures that the charger maintains a constant charge current even with a low input voltage supply, which is critical for USB-powered devices.
• Reverse Battery Protection: The IC prevents damage to the charger if the battery is accidentally inserted backward.
• Compact Design: Housed in a 16-pin narrow SSOP package, the LT1555IGN#TRPBF saves valuable board space, making it suitable for space-constrained applications.

Applications:

The LT1555IGN#TRPBF is designed for a wide range of applications where efficient single-cell Li-Ion battery charging is required. This includes but is not limited to:

• Portable Medical Devices
• Handheld Instruments
• Wireless Headsets
• Smartphones and Tablets
• Wearable Technology

With its comprehensive set of features, the LT1555IGN#TRPBF from Linear Technology stands out as a reliable and efficient solution for your single-cell Li-Ion battery charging needs, ensuring your devices stay powered and ready to use.