The LTC4121EUD#TRPBF is a versatile and compact wireless power receiver and battery charger integrated circuit designed by Linear Technology. This innovative component combines a wireless power receiver with a constant-current/constant-voltage linear charger for single-cell batteries, making it an ideal solution for portable devices where traditional wired charging is inconvenient or impractical.

Key Features

• Wireless Power Receiver: Capable of receiving power wirelessly from an appropriate transmitter, this IC eliminates the need for physical connectors, reducing wear and tear and allowing for sealed enclosures.
• Integrated Battery Charger: Its built-in linear charger efficiently charges a single-cell Li-Ion or Li-Polymer battery, ensuring safe and reliable battery management.
• Flexible Charging Options: The LTC4121EUD#TRPBF supports programmable charge current up to 400mA and programmable float voltage up to 4.2V, catering to a wide range of battery specifications.
• PowerPath Control: This feature allows the device to power the system load while simultaneously charging the battery, optimizing system performance and uptime.
• Compact Design: Housed in a small 16-lead QFN package, this IC is suitable for space-constrained applications.

Applications

The LTC4121EUD#TRPBF is designed to be a versatile component suitable for a variety of applications. These include:

• Portable medical devices
• Wearable electronics
• Wireless sensors and sensor networks
• Industrial monitoring equipment
• Handheld instruments

Technical Specifications

The technical specifications of the LTC4121EUD#TRPBF include:

• Input Voltage Range: 4.2V to 40V
• Programmable Charge Current: Up to 400mA
• Programmable Float Voltage: Up to 4.2V
• Operating Temperature Range: -40°C to 125°C
• Package: 16-Lead QFN (3mm × 3mm)

With its unique combination of wireless power reception and battery charging capabilities, the LTC4121EUD#TRPBF from Linear Technology is a highly integrated solution for the next generation of wireless charging applications.