Kontron COMe-bP5020 - Manual (Page 44)

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User Guide
COMe-bP5020
4 Power Consider ations
4.1 Supply Voltage
Following supply voltage is specified at the COM Express® connector.
Table 37: Supply Voltages
The 5V Standby and the RTC voltage are not mandatory for operation.
4.2 Power Supply Rise Time
The input voltages shall rise from ≤ 10% of nominal to within the regulation ranges within 0.1ms to 20ms. There must be a
smooth and continuous ramp of each DC input voltage from 10% to 90% of its final set-point as specified in the ATX specifica-
tion.
4.3 Supply Voltage Ripple
The supply voltage ripple must not be greater than 100 mV peak to peak 0 – 20 MHz.
4.4 Power Consumption
The maximum power consumption of the COMe-bP5020 is a function of clock frequencies, workload/utilization, temperature
and component variations/tolerances.
The following tables indicate the typical power consumption of the COMe-bP5020 with 2GHz core clock and 8GB DDR3 memory
under various conditions.
Table 38: Workload Dependency
Table 39: Power Consumption vs. Ambient Temperature (U-Boot in Idle)
TYPE RANGE
VCC 8.5V - 18V
(12V nominal)
STANDBY 5V DC +/- 5%
RTC 2.5V - 3.3V
APPLICATIONS POWER CONSUMPTION
U-Boot (idle) 21.1 W
Linux (idle) 20.3 W
Linux (Memtest) 23.5 W
Linux (Drystone) 23.3 W
U-Boot (idle) + GigE 22.1 W
Linux (idle) + GigE 21.3 W
AMBIENT AIR
TEMPERATURE
12V RAIL LOAD
POWER
CONSUMPTION
23° C 1.6 A 21.1 W
40° C 1.94 A 23.3 W
50° C 2.08 A 25.0 W
60° C 2.25 A 27.07 W
65° C 2.36 A 28.3 W
70° C 2.47 A 29.6 W