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TL1431 Biasing Question

Other Parts Discussed in Thread: TL1431

Hello TI,

I have a question about the TL1431.  The functional block diagram shows an amplifier driving an NPN that is connected from Cathode to Anode.  When the transistor is ON, is there sufficient biasing to keep the transistor in the ON state?

By the way, I am referring to the application using the device as a comparator (in open loop mode) such as below:

 4628.Comparator Pic.docx

Thanks,

Dan