P9221-R Datasheet

© 2016 Integrated Device Technology, Inc.

19

December 16, 2016

Table 7.

Maximum Estimated Power Loss

Maximum Power [W]

Maximum

�������� [mW]

15

750

Programmability is necessary so that the calibration settings can be optimized to match the power transfer characteristics of each particular

WPC system to include the power losses of the transmit and receive coils, battery, shielding, and case materials under no-load to full-load

conditions. The values are based on the comparison of the received power against a reference power curve so that any foreign object can be

sensed when the received power is different than the expected system power.