Our customer ask me about the fault protection of TPS7A6333-Q1.
The question is,
Does TPS7A63xx-Q1 cover all below fault protections ?
a) short-circuit between the output pin and power supply (lightening),
b) short-circuit between the output pin and GND (ground fault),
c) and short-circuit between output pins (load short-circuit).
The customer are very interested in a).
I can only see "Short-Circuit/Over-Current Protection" in the datasheet, so I could not answer their question.
Please advise us.
please see answers to your requests below:
NO: see absolute maximum ratings, (item 1.2 on page 2 of the datasheet): 7V is absolute maximum on Vout pin. (If power supply is blow 7V, the part would survive).
YES: the part will initially limit the output current to 350..1000mA (see item 6.7, page 3 of datasheet), and - if prolonged - will go into temperature shutdown. After a temperature hysteresis, it will power up again. Since this keep the device temperature rather high, it may lead to accelerated aging if present for long time.
Not sure what pins are shorted here: the part has just one output pin?
Thank you for your replying, it is very comprehensible explanation.
And I'm sorry for confuse you, the customer just told me that there are three kind of short in general,
in TPS7A63xx, it has only one output pin, as you mentioned.
Thanks and best regards,
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