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What kind of limitation is the RDS dotted in the direction of MOS FET?

Latest Updated:04/01/2006

Question:

RDS(on)Limited is indicated by dotted lines on the graph that shows the safe operating area in the forward direction of a power MOS FET. What kind of limitation is this?

Answer:

The RDS(on)Limited dotted line shows the limits of the area in which characteristics cannot be obtained due to ON resistance.
In other words, the lower the VDS (drain-to-source voltage) becomes, the more ID (drain current) is limited by ON resistance.
Suitable Products
Power MOSFETs