- Joined Jun 3, 2019
Guys, if I don't use pin 8 of the SG3525 (softstart function) should I leave it open or grounded?
In the KA3525 datasheet, the power supply design is not the same as the SG3525, but in the softstart specification there is a supply of 50uA in both ICs.In looking at the SG3525 from ST, pin 8 has an internal source, while Fairchild KA3525 does not. So I will have reverse my previous post and go with, pull high, as you have indicated you’ve observed. Pulling high will provide for either device to be used. Are there other differences?
I’m thinking output caps would easily absorb a hard start with ramping voltage.You realize that you will likely get significant voltage overshoot at the output during startup.
Is that not going to be a problem?
Think again.I’m thinking output caps would easily absorb a hard start with ramping voltage.
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