T
treez
Guest
Hello,
We have a LED driver as in the attached schematic. We sometimes wish to shut it off by turning on the PNP and putting the opamp’s rail voltage on to its inverting input. We will later turn it back on again by turning off the PNP.
The opamp used is the MIC6211. The positive rail is obviously outside of its input common mode range. Some of the old opamps would malfunction if such a high voltage was placed on to one of their input pins. Do you think the MIC6211 will be OK with this?
MIC6211 datasheet:
https://ww1.microchip.com/downloads/en/DeviceDoc/mic6211.pdf
We have a LED driver as in the attached schematic. We sometimes wish to shut it off by turning on the PNP and putting the opamp’s rail voltage on to its inverting input. We will later turn it back on again by turning off the PNP.
The opamp used is the MIC6211. The positive rail is obviously outside of its input common mode range. Some of the old opamps would malfunction if such a high voltage was placed on to one of their input pins. Do you think the MIC6211 will be OK with this?
MIC6211 datasheet:
https://ww1.microchip.com/downloads/en/DeviceDoc/mic6211.pdf