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13 Appendix B: Important Technology Information
13.4.4 Electrical characteristics
Note:
13.5
®
Vcc =
5V
®
Imax (continuous) =
0,68 A
®
Imax (pulsed) =
2A
®
Sense (Tacho-pulse) =
4 Pulses per turn
The 5 V output is not short-circuit proof. The user has to ensure that the circuit is protected externally, for
example by a fuse on the backplane.
Processor Clock Throttling
The ACPI OS assesses the optimum CPU performance change necessary to lower the temperature using
the following equation:
Kontron User's Guide ETX®-P3T
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