BQ51021YFPR

The BQ51021YFPR from Texas Instruments is a fully contained wireless power receiver designed to operate with the WPC v1.1 protocol, enabling wireless power systems to deliver up to 5W when used with a Qi inductive transmitter. This device provides integrated power conversion, including rectification and regulation, along with digital control and communication capabilities.

Key features include market-leading efficiency, an adjustable output voltage range of 4.5V to 8V for coil and thermal optimization, and a fully synchronous rectifier with 96% efficiency. The post-regulator boasts 97% efficiency, resulting in a system efficiency of 79% at 5W. The device supports I2C communication, allowing for advanced features such as receiver alignment on the transmitter surface and foreign object detection.

Packaged in a 42-DSBGA, the BQ51021YFPR is surface-mount compatible. It operates within a temperature range of -40°C to 125°C and supports input voltages from 4V to 10V, with a current rating of 2.5A. Its inductorless design contributes to a low height profile.

This receiver is suitable for applications requiring efficient and compact wireless power solutions, offering flexibility for system designers to implement innovative features and optimize performance.