The LT3650EMSE-8.2#PBF is a high-efficiency, 2A battery charger IC manufactured by Analog Devices Inc. This advanced charging device is designed to optimally charge single-cell lithium-ion or lithium-polymer batteries. Its small form factor and the integration of key features make it an ideal choice for portable applications where space and power efficiency are critical.

Key Features

• Programmable Charge Rate: The charge current is easily programmable up to 2A through a single resistor, offering flexibility to work with various battery capacities and sizes.
• Precision Charge Voltage: The LT3650EMSE-8.2#PBF features a fixed 8.2V charge voltage with an accuracy of ±0.35%, ensuring the battery is charged to the optimal voltage for extended life and performance.
• Automatic Charge Termination: The charger incorporates an automatic termination feature based on the charge current, which helps preserve battery integrity and longevity.
• Thermal Regulation: This IC includes thermal feedback that regulates the charge current to maintain a safe temperature, preventing overheating and damage to the battery.
• PowerPath Control: The device supports instant-on operation even with a depleted battery, allowing the system to be powered directly from the input supply when available.

Applications

The LT3650EMSE-8.2#PBF is suitable for a wide range of applications, including:

• Portable Medical Devices
• Handheld Instruments
• Industrial Equipment
• Battery-Powered Gadgets
• Uninterruptible Power Supplies

Package and Quality

This IC comes in a compact 12-pin MSOP package with a lead-free finish, adhering to RoHS standards. The part number LT3650EMSE-8.2#PBF indicates that it is provided in a Pb-free (lead-free) version, ensuring compliance with current environmental regulations regarding hazardous substances.

Conclusion

The LT3650EMSE-8.2#PBF from Analog Devices Inc. is a versatile, high-performance battery charger IC that offers advanced features for efficient and safe charging of lithium-based batteries. Its precision, programmability, and protective measures make it an excellent choice for designers looking to incorporate reliable battery management into their products.