Analog Devices Inc. LT3650IDD-8.2#TRPBF Battery Charger IC

The LT3650IDD-8.2#TRPBF from Analog Devices Inc. is a high-performance battery charger IC designed for precision charging of single-cell lithium-ion or lithium-polymer batteries. This integrated circuit provides an efficient and reliable charging solution for a wide range of portable electronic devices, including smartphones, tablets, digital cameras, and other USB-powered gadgets.

Featuring a compact design, the LT3650IDD-8.2#TRPBF comes in a low-profile (0.75mm) 10-pin DFN package with a 3mm x 3mm footprint, making it an ideal choice for space-constrained applications. The device offers a fixed float voltage of 8.2V, which is carefully regulated to ensure the longevity and safety of the battery being charged.

One of the key features of this charger IC is its programmable charge current, which can be set up to 2A with a single resistor. This flexibility allows designers to tailor the charging profile to the specific needs of their application. Additionally, the LT3650IDD-8.2#TRPBF incorporates an internal thermal feedback mechanism that optimizes the charge rate for the ambient temperature, preventing overheating and ensuring safe operation under various conditions.

The device also includes several safety features to protect both the battery and the charger. These include overvoltage protection, thermal shutdown, and a charge current monitor that allows for charge termination or C/10 detection. Furthermore, the LT3650IDD-8.2#TRPBF supports automatic recharge, meaning it will initiate a new charging cycle if the battery voltage falls below a preset level.

For added convenience, the LT3650IDD-8.2#TRPBF offers an NTC thermistor input that allows temperature-qualified charging, ensuring that the battery is only charged when within a safe temperature range. It also provides a status indication pin that can be used to display charge progress or to signal a completed charge.

In summary, the LT3650IDD-8.2#TRPBF from Analog Devices Inc. is a versatile and robust single-cell battery charger IC that offers precision charging with multiple safety features. Its compact size and comprehensive set of functions make it an excellent choice for designers looking to implement an effective charging solution in their next portable device project.