Can we use NFC and wireless charging in the same device?

[plawat]

We are using NFC tag with 0600-00061 antenna from Laird connectivity and charging coil WR121210-27M8-ID from TDK with wireless charging IC STWLC38JR .

Will it be okay to use both and will they work alright?

[Ulysses HERNIOSUS]

Hi plawat,

which tag are you using on the 0600-0061 antenna?

BR, Ulysses

[plawat]

We are using Nordic nrf5340BLE SoC in our design. This also has a function to be used as NFC tag. We are using this functionality of nrf5340.

[plawat]

We also are searching for some help in miniaturizing the antenna design to be used with nrf5340 as our requirement of tag sensing distance is 1cm only.

[Ulysses HERNIOSUS]

Hi plawat,

there are two considerations:

1. Does STWLC38JR work in presence of nrf5340 tag? Unfortunately then this is not the right forum. I would be surprised if there are any problems as the NFC field is relatively weak compared to a wireless charger. But I don't know and escalated to have a better topic assigned
2. Does nrf5340 tag work in presence of STWLC38JR? You are clearly in the wrong forum unless you consider changing to some ST25DV based design and you should rather consult with the manufacturer.

Best Regards, Ulysses

[plawat]

Hi, In our smart ring design we are integrating the ST25DV based charging solution for our 28mAh battery. We need to have a printable NFC charging tag to be incorporated in our design so that the size adn footprint is reduced. WE need the gerber / schematics for the same.