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Understanding Modern Power MOSFETs - Fairchild Semiconductor

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19<br />

20<br />

Maximum Rated Voltage Impact on<br />

R DS(ON)<br />

500V<br />

FQPF13N50C<br />

480 mΩ<br />

600V<br />

FQPF12N60C<br />

650 mΩ<br />

Increasing the maximum rated voltage for the same die size:<br />

• Increases the R DS(ON)<br />

600V<br />

FCI7N60<br />

600 mΩ<br />

IPAK<br />

Die Size: Impact on R DS(ON)<br />

Increasing the die size:<br />

• Reduces the R DS(ON)<br />

• Increases the cost<br />

• Increases the size of the package needed<br />

600V<br />

FCH47N60<br />

70 mΩ<br />

TO247<br />

10

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