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The Path of Least Resistance

Upal Sengupta, Staff Applications Engineer
Texas Instruments – Battery Management Solutions

One (almost literal) “rule of thumb,” which I learned some years ago, was that if you couldn’t hold your finger on an IC for more than one second without feeling pain, the chip’s case temperature was probably above 50ºC.  While I don’t recommend this technique as a substitute for doing actual thermal measurements on your PCB, it was an interesting discovery at the time… and of course it was also easier to do when IC packages were a little bigger than they are now. Read more about The Path of Least Resistance

The Path of Least Resistance

Upal Sengupta, Staff Applications Engineer
Texas Instruments – Battery Management Solutions

One (almost literal) “rule of thumb,” which I learned some years ago, was that if you couldn’t hold your finger on an IC for more than one second without feeling pain, the chip’s case temperature was probably above 50ºC.  While I don’t recommend this technique as a substitute for doing actual thermal measurements on your PCB, it was an interesting discovery at the time… and of course it was also easier to do when IC packages were a little bigger than they are now. Read more about The Path of Least Resistance