The LT3650EDD-4.1#PBF is a high-performance battery charger IC from Linear Technology, designed to efficiently charge single-cell lithium-ion batteries. It is a compact, feature-rich solution that simplifies the design of battery charging systems for a wide range of applications.

Key Features

• Precision Charge Voltage: The LT3650EDD-4.1#PBF maintains a tight regulation on the final charge voltage with a precision of 1%, ensuring the battery is safely charged to its maximum capacity without overcharging.
• Programmable Charge Current: Users can set the charge current from 1.5A to 4A, depending on the specific needs of the application and the battery's specifications.
• Integrated Thermal Regulation: This feature protects the device and the battery by reducing the charge current if the internal temperature of the IC approaches a preset limit, thereby preventing overheating.
• Automatic Recharge: The charger initiates a new charging cycle if the battery voltage falls below a set threshold, ensuring the battery remains fully charged over time.
• Charge Status Indicators: The IC provides status pins that can be used to drive LEDs or interface with a microcontroller to indicate the charging progress and completion.

Applications

The versatility of the LT3650EDD-4.1#PBF makes it suitable for a variety of applications, including portable medical devices, handheld instruments, and consumer electronics where efficient charging and battery management are critical.

Package and Reliability

Housed in a compact 12-pin DFN package, the LT3650EDD-4.1#PBF is designed for space-constrained environments. Its robust design ensures reliable operation over a wide temperature range, making it a dependable choice for both industrial and consumer applications.

Conclusion

With its precision charge control, programmable current, and comprehensive safety features, the LT3650EDD-4.1#PBF from Linear Technology is an ideal solution for designers looking to incorporate a reliable and efficient battery charging system into their products.