ESP32-C6 getting really hot when Wifi is enabled

Nicco00
Posts: 1
Joined: Wed Jul 23, 2025 10:11 am

ESP32-C6 getting really hot when Wifi is enabled

Postby Nicco00 » Wed Jul 23, 2025 10:25 am

Hello,
I have made a custom ESP PCB Design with an ESP32-C6 chip with QFN32 package and internal flash. The board works just fine till the point where the Wifi is enabled.
- Without the wifi enabled the board draws 0.2W (25-30° C)
- with the wifi enabled but not connected: 0.5W (60° C)
- with wifi enabled and connected: 1.9W (+100° C)

The antenna works fine wifi Signal is mostly below 70 dB

I would really appreciate any Help.
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Sprite
Espressif staff
Espressif staff
Posts: 10617
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32-C6 getting really hot when Wifi is enabled

Postby Sprite » Fri Jul 25, 2025 12:23 am

Antennas are pretty sensitive to, well, anything really, to be tuned correctly. How did you tune it, or did you only run the EMC calculations to make sure it's impedance-matched and works on the correct frequency?

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