11.05.2017, 01:14 PM
Zitat:Hi Christian,
The AN TPA3255 is, in fact, not self destructive with open load, even with high level square wave input signal, which is the worst case you can treat it. There is some overshoot/ringing, but not uncontrollable. Loaded it behaves quite well.
We chose this simple approach since we also need to support it, so the less knobs to turn… We can get better with a more advanced scheme, but that will not come at ease for our apps team, or our customers that never follow our guidelines 100%.
BTW: In case of total lack of control, the OC will as often kick in and shut down the device before anything burns.
AES337, -boy that’s some time ago. I cannot recall Charles’ face, but yes, I attended and presented a paper of the TAS5630 development.
Best regards,
Søren