© Technosoft 2011 17
IDMx40 Technical Reference
Figure 2.12. De-rating with ambient temperature
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Figure 2.13. De-rating with case temperature
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Figure 2.14. De-rating with altitude Figure 2.15. Current De-rating with with PWM
frequency
CAUTION!
For PWM frequencies less than 20kHz, correlate the
PWM frequency with the motor parameters in order to
avoid possible motor damage.
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I
NOM
– the nominal current
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Stand-alone operation, vertical mounting
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Fixed on metallic surface, vertical mounting. Temperature is measured at the contact area between the IDMx40 and the
heat sink.
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