Other Parts Discussed in Thread: OPA4192
Tool/software:
Hello.
This is Kwonjoon Lee from South Korea.
I would like to ask about the absolute maximum ratings in power down of OPA2192 (or OPA4192).
(Detailed Situation)
1. In my power-down situation,
the positive input of the OPA2192 is very slowly discharged (due to a large capacitor and resistor at the input), but
the positive supply (V+) of the OPA2192 is discharged faster.
(Questions)
1, With above-mentioned situation,
I would like to ask if the power-down situation violates the absolute maximum ratings, and the positive input should be discharged before discharging of the positive supply.
2. As a individual opinion,
I think that a remaining charge at the positive input can be discharged through a power clamp diode (between the positive input and the positive power supply) in the case that
the positive supply's voltage is lower than the positive input's voltage.
I would like to ask if there is no problem in the case that the discharging current (through the power clamp diode) is lower than the 10mA.
Best regards,
Kwonjoon Lee
