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CP6003-RA/RC
5.1.3.4
Regulation
The power supply shall be unconditionally stable under line, load, unload and transient load
conditions including capacitive loads. The operation of the power supply must be consistent
even without the minimum load on all output lines.
Warning!
All of the input voltages must be functionally coupled to each other so that if
one input voltage fails, all other input voltages must be regulated proportion-
ately to the failed voltage. For example, if the +5V begins to decrease, all other
input voltages must decrease accordingly. This is required in order to preclude
cross currents within the CP6003-RA/RC.
Failure to comply with above may result in damage to the board or improper
system operation.
Note ...
If the main power input is switched off, the supply voltages will not go to 0V
instantly. It will take a couple of seconds until the capacitors are discharged. If
the voltage rises again before it has gone below a certain level, the circuits
may enter a latch-up state where even a hard RESET will not help any more.
The system must be switched off for at least 3 seconds before it may be
switched on again. If problems still occur, turn off the main power for 30 sec-
onds before turning it on again.
5.2
Power Consumption of CP6003-RA/RC
The goal of this description is to provide a method to calculate the power consumption for the
CP6003-RA/RC baseboard and for additional configurations. The processor with the integrated
graphics controller dissipates the majority of the thermal power.
The power consumption tables below list the voltage and the power specifications for the
CP6003-RA/RC board and its accessories.
The values were measured using the following testing parameters:
• board installed in an 8-slot passive CompactPCI backplane with two power supplies, one
for the CPU, and the other for the hard disk
• board installed in the system slot
• 3.3 V and 5 V supply voltage
• 2.5 m/s airflow
The operating systems used were uEFI shell and Windows® XP, 32-bit. All measurements
were conducted at a temperature of 25°C. The measured values varied because the power
consumption was dependent on the processor activity.
Note ...
The power consumption values indicated in the tables below can vary depend-
ing on the ambient temperature or the system performance. This can result in
deviations of the power consumption values of up to 15%.
ID 1046-3890, Rev. 1.0
Power Considerations
Page 5 - 5
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