Analog Devices Inc. LTC4121IUD - Wireless Power Receiver and Battery Charger

The LTC4121IUD, from Analog Devices Inc., is a versatile wireless power receiver and battery charger that integrates a rectifier and a robust battery charger for Li-Ion/Polymer batteries. This innovative component is designed to simplify the implementation of wireless charging in portable devices, enabling users to charge their devices without the need for cables and connectors.

This highly integrated device operates over a wide input voltage range and provides a full-featured battery charger with an adjustable float voltage and charge current. The LTC4121IUD supports a programmable charge current up to 400mA, which can be set via an external resistor. Additionally, its float voltage is adjustable from 3.5V to 11V, catering to a wide array of battery chemistries and configurations.

The LTC4121IUD boasts an impressive array of safety features, ensuring reliable and secure operation. These include temperature-qualified charging, an input voltage regulation loop that maintains the input voltage at a programmed level when the input source is limited in power, and a programmable charge termination timer. Moreover, the device provides an NTC thermistor input for temperature-based charge suspension, ensuring the battery does not overheat during charging.

With its compact QFN package, the LTC4121IUD is not only space-efficient but also offers a low-profile solution that is ideal for slim and portable devices. Its small footprint and high level of integration make it a perfect choice for a variety of applications, including medical devices, handheld instruments, and wearable technology.

Furthermore, the LTC4121IUD is designed to be robust and reliable, with an industrial temperature range of -40°C to 125°C. This ensures performance across a wide range of environmental conditions, making it suitable for outdoor and harsh environment applications.

Overall, the LTC4121IUD from Analog Devices Inc. represents a cutting-edge solution for wireless power transfer and battery charging, providing designers with a versatile and efficient component that is sure to enhance the user experience of their portable devices.