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I'm considering the NCL3000 as an LED driver. My question is regarding the application schematic pg16 of the data sheet. What is the purpose of D8,R14 and R17?
D8 limits the maximum voltage presented to the Comp pin. R14 provides bias current to stabilize the Current Transfer Ratio (gain) of the opto coupler. R17 is a noise filter which is helpful in some applications. It may not be necessary in all case. C7 is needed to maintain loop stability.
Answered by: ON Semiconductor
2014-10-10 10:34:26.171