Power consumption when transmitting BLE advertising packets

RE: Power consumption when transmitting BLE advertising packets

ThienNBK — Fri, 27 Jun 2025 08:14:27 GMT

thanks for your reply

RE: Power consumption when transmitting BLE advertising packets

Turbo J — Thu, 26 Jun 2025 07:27:06 GMT

You can try enabling the DCDC, but <5mA does not sound likely to me. Note that I don't have a NRF54X chip here for testing (not a nordic employee).

What you can do is place a few hundred µF worth of capacitors in parallel to your battery. This way you can use like a CR2032 as a power source.

RE: Power consumption when transmitting BLE advertising packets

ThienNBK — Thu, 26 Jun 2025 07:15:21 GMT

Thank you for your response.
I have one more question: how can I reduce the current consumption to below 8 mA?
Would adjusting the capacitors associated with DECA, DECRF, or DECD help in stabilizing or lowering the current?

RE: Power consumption when transmitting BLE advertising packets

Turbo J — Tue, 24 Jun 2025 06:44:36 GMT

No, those peaks are expected. Its just not easy to read this from the PS/datasheet information, as the electrical stuff is stated in multiple places and you also needed to know how BTLE is supposed to work.

BTLE advertising has the radio turned OFF for most of the time, its only turned on in TX mode to send and then in RX mode for a short time in order to receive scan/connect requests. Same for the CPU core - thus you get single digit µA current cosumtion during the pause time.

You will not achieve steady current consumtion with BTLE turned on - that is simply not intended at all.