Teensy 4.1 Operating Temp

tbennett

New member
I am creating a large heating panel that aims to get up to 85C on its face. To be safe, all electronics (which will be in their own insulated cabin that should be far less than 85C) must be able to withstand this temperature.
Currently, I am using an Arduino Mega, which has worked admirably in excess of 85C in a heating chamber I assembled.
Today I tested the teensy under the same conditions, and it failed at 50C ambient, with the orange led on and the red led blinking slowly. Is this expected? Should I choose another option for this project?
 
I am creating a large heating panel that aims to get up to 85C on its face. To be safe, all electronics (which will be in their own insulated cabin that should be far less than 85C) must be able to withstand this temperature.
Currently, I am using an Arduino Mega, which has worked admirably in excess of 85C in a heating chamber I assembled.
Today I tested the teensy under the same conditions, and it failed at 50C ambient, with the orange led on and the red led blinking slowly. Is this expected? Should I choose another option for this project?

The processor is rated at 0 to 95degC.
So in order to use a Teensy @ an ambient of 85degC you will have to apply a (large?!) heatsink to the CPU.
EDIT:
Plus also under clock it.
 
And if the BGA package uses thermal vias you benefit from suitable thermal considerations in the multi-layer PCB design - no idea if this applies to T4 though.
 
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