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ATL432: TL432 application issues

Part Number: TL432-Q1
Other Parts Discussed in Thread: TL432

Hi expert,

 

When I calculate the TL432 output voltage, I am confused about some content on the datasheet, could you pls help to give me some supports:

 

  1. I want to know the formula: how is -Iref *R1 understand?

 

  1. I found that Figure 21 and Figure 27 are the same, but the formula is different, what is the reason?

 

Looking forward to your reply, thanks.