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BQ51050B Receiver - Coil quality factor

Other Parts Discussed in Thread: BQ500211, BQ51050B

Hello,

I'm going to use the BQ51050B Wireless Power Receiver and Battery Charger in my next design, and i've got some questions regarding the receiver coil. On the transmitter side i would use the BQ500211 Transmitter manager.

I would like to use the following coil on the receiver side: Würth 760308201

Is it possible to use this coil with this receiver?

Further the Data sheet of this coil mentions a quality factor of 50.

The equation 6 of the BQ51050B datasheet says that the quality factor has to be greater than 77.

Calculating with this equatation i get a quality factor for the same coil that is greater than 77.

Is this quality factor compareable or does it has to be calculated with the equation?

Best regards