nRF54L15 NFC current consumption

RE: nRF54L15 NFC current consumption

Simonr — Wed, 21 May 2025 07:28:37 GMT

1. Correct, the input current number is the current that can go onto the NFC tag from an NFC reader.

2. We don't have numbers for the NFCT active states yet, but in SENSE states for I.E. the nRF52840 it is 100nA and in the ACTIVATED state it is 400µA, so these could be very rough ballpark numbers that should be somewhat similar for the nRF54L15, but the exact current consumption numbers for this will be added to a future revision of the nRF54L15 datasheet.

Best regards,

Simon

RE: nRF54L15 NFC current consumption

Webster Yang — Tue, 20 May 2025 03:58:21 GMT

Hi, Simon
I have 2 additional questions.
1. Does the current represent the induced current while using the external device detect the NFC?
2. What is the NFC power consumption? (or the consumption current?)

RE: nRF54L15 NFC current consumption

Simonr — Thu, 15 May 2025 09:22:39 GMT

This is the maximum input current on the NFCT pins that refers to the maximum sink from an external NFC reader and this is slightly higher for the nRF54L15 than for the nRF52840.

Best regards,

Simon