Conversation

Notices

1. Embed this notice
   smellsofbikes (smellsofbikes@mastodon.social)'s status on Thursday, 23-May-2024 15:34:56 JST smellsofbikes

   I'm trying to test thermal shutdown on an IC: if it gets hot enough, does its thermal regulation work? It has: an ADC measuring die temp via bandgap, a hardware bandgap that cuts function at a specific temperature, and a write register that you can set a value into so when it exceeds that value it shuts down. The important one, the hardware that should cut the power section, is way off. It hasn't tripped at 200C.
   So today I talked to a running chip through liquid solder. That's a first.

   • Embed this notice
     smellsofbikes (smellsofbikes@mastodon.social)'s status on Thursday, 23-May-2024 15:34:53 JST smellsofbikes

     in reply to

     • Lena Schimmel

     @lenaschimmel I had a PC that was behaving really sketchy even considering I had a poorly performed gentoo install on it: the keyboard had gone flaky, the monitor was wonky, so I ssh'ed into it sitting right beside it and just after logging in, it locked up and I heard this "tink! tink!" sound. I opened the case and parts had slid off the motherboard. It tried its best...

   • Embed this notice
     Lena Schimmel (lenaschimmel@chaos.social)'s status on Thursday, 23-May-2024 15:34:55 JST Lena Schimmel

     in reply to

     @smellsofbikes my favorite method, discovered by accident: if you mount SMD components on the back side, they perform thermal shutdown by self-desoldering and falling off.

     (I guess that at least half of electronics hobbyist have experienced that at some at some time, but _someone_ has to be the first to comment it, right?)

     GreenSkyOverMe (Monika) repeated this.