Analog Devices Inc. LTC4121EUD - Wireless Power Receiver and Battery Charger

The LTC4121EUD from Analog Devices Inc. is a versatile and highly integrated wireless power receiver and battery charger that simplifies the development of wireless charging systems. This advanced component is designed to efficiently harvest energy from an inductive charging transmitter, making it an ideal solution for portable electronic devices where traditional wired charging is inconvenient or impractical.

Key Features

• Wireless Energy Harvesting: The LTC4121EUD is capable of wirelessly receiving power, providing a convenient charging solution that eliminates the need for physical connectors.
• Integrated Battery Charger: This device includes a full-featured battery charger with programmable charge current up to 400mA, making it suitable for a wide range of battery sizes and chemistries.
• PowerPath Control: It features PowerPath control which allows the system to be powered directly from the wireless interface while simultaneously charging the battery, ensuring uninterrupted operation of the system.
• Multiple Battery Chemistries: The LTC4121EUD supports charging of various battery chemistries including Li-Ion, LiFePO4, and LiPolymer, offering flexibility for different application requirements.
• Compact Package: Housed in a compact 20-lead QFN package, the LTC4121EUD saves valuable board space and is suitable for space-constrained applications.

Applications

The LTC4121EUD is ideal for a range of applications where wireless power is beneficial. These include:

• Portable Medical Devices
• Wearable Electronics
• Wireless Sensors and Beacons
• Handheld Instruments
• Industrial/Mining Safety Equipment

Technical Specifications

The device operates over a wide input voltage range and includes a variety of safety features such as overvoltage protection, thermal protection, and programmable charge termination. The LTC4121EUD also integrates a low battery voltage indicator and a charge status indicator to provide real-time feedback on the charging process.

With its combination of wireless power transfer and battery charging capability, the LTC4121EUD from Analog Devices Inc. is a powerful solution for designers looking to create efficient, cable-free power systems for their electronic devices.