Bootstrap, size the bootstrap elements?


Joined Feb 24, 2006
IRF530 datasheet

Look at and understand Figure 13a. This is telling how long it will take to switch the device on and off. The gate of a MOSFET is like a big capacitor, but this capacitor changes it's stripes as you try to charge and discharge it. That is why there is a plateau in the diagram.

Does that help?

A small point. Did you notice that the TLP250 is: "Not Recommended for New Designs"? This means the part is nearing it's end of life (EOL) and may soon be unavailable.
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