Am Samstag, 9. Januar 2021, 23:38:35 CET schrieb gandal...@aol.com: > Now a question, supposing someone did follow that diagram and applied 5 > Volts to Vcc on the M8T, what is the risk of damage and would it be > immediately obvious?
The commonly agreed upon definition of an abs max rating is that anything is possible if you happen to exceed it even just a tiny bit, including latent or immediate permanent damage. Practically there is always some headroom since otherwise nobody would be able to test and guarantee that specification. How much headroom? You don't know… Looking at the block diagram that VCC goes into a power management block that has a DC/DC converter of unspecified type, but surely some sort of down- converter, so that VCC terminates into some switching stage and hopefully never enters any downstream circuitry directly. The potential failure modes would be direct damage to the switching transistor(s) in the converter due to overvoltage or switching loss or (less likely, but possible in certain topologies) that the internal supply exceeds whatever voltage it's supposed to produce. Unless the switching stage fails catastrophically (typically shorting the supply as a result, which will announce itself immediately) which becomes more likely the higher the applied voltage and the longer you apply it (both will shorten the lifetime exponentially) I'd suspect that you couldn't tell without grinding the chip down and looking at it under an SEM and even probing the individual transistors. Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ SD adaptation for Waldorf microQ V2.22R2: http://Synth.Stromeko.net/Downloads.html#WaldorfSDada _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.