Other Parts Discussed in Thread: TPA3220, , TPA3251EVM, TPA3245, TPA3221
My customer asked us about voltage of FAULT pin for TPA3220.
Because the voltage of FAULT pin on board made by him is 5 V.
Then he confirmed it with TPA 3220 EVM and it was 5 V.
In the data sheet of TPA3220, the voltage of the FAULT pin is described as Typical 3.3V(Max3.6V).
Then I confirmed it again, but on the TPA 3220 EVM the FAULT pin voltage was 5 V.
I cheked circuit diagram of TAP3220EVM, It turned out that this was pulled up to 5 V externally circuit.
In the other TAP324x, TPA325x EVM circuit diagram, the external pull-up is 3.3V.
What is the difference?
In the data sheet, all the voltages on the FAULT pin are Typical 3.3 V (max 3.6 V).
From this data sheet, 5 V is out of the range of recommended specification.
1. Is the voltage specification of the FAULT pin of TPA 3220 correct?
2. Why is the FAULT pin voltage of TPA 3220 EVM set at 5 V?
Is this a problem?
Please let me know reply to above questions.