The LT3650EMSE-4.2#PBF from Analog Devices Inc. is a highly efficient, single-cell, lithium-ion battery charger IC designed to simplify the charging process for a wide array of portable electronic devices. This advanced charging IC is engineered to provide a constant-current/constant-voltage charge algorithm with programmable charge current up to 2A, making it an ideal solution for fast and reliable battery management.

Key Features:

• Precision Charge Voltage: The LT3650EMSE-4.2#PBF offers a precise 4.2V charge voltage with an accuracy of ±0.5%, ensuring the battery is charged to its optimal voltage level for maximum energy storage and longevity.
• Programmable Charge Current: Users can set the charge current from 100mA up to 2A with an external resistor, providing flexibility to accommodate various battery capacities and charging speed requirements.
• Charge Current Monitoring: The IC includes a charge current monitor output for real-time observation of the charge current, which is useful for system diagnostics and optimization.
• Automatic Recharge: Once the charge cycle is complete, the LT3650EMSE-4.2#PBF automatically initiates a new charge cycle if the battery voltage falls below a user-defined threshold, ensuring the battery remains fully charged.
• Thermal Regulation: To protect the battery and the charger from overheating, the IC features an internal thermal regulation mechanism that reduces charge current under high temperature conditions.
• PowerPath Control: The device provides PowerPath control, which allows the system to be powered directly from the input power source while the battery is being charged, minimizing charge time and avoiding battery drain.

Applications:

The LT3650EMSE-4.2#PBF is suited for a variety of applications, including:

• Portable Medical Devices
• Handheld Instruments
• USB-Powered Gadgets
• Personal Navigation Devices
• Wireless Speakers and Headphones

Package and Quality:

Encased in a 12-lead MSOP package with an exposed pad for enhanced thermal performance, the LT3650EMSE-4.2#PBF is designed to meet the rigorous standards of portable device manufacturers. Analog Devices Inc. ensures high reliability and performance, making this charger IC a trusted choice for your power management solutions.