Kontron COMe-cTH6 - Manual (Page 16)

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COMe-cTH6 User’s Guide
www.kontron.com
3.4 Electrical Specifications
3.5 ATX Power
Main power is on the COM Express VCC_12V pins and standby power is on the VCC_5V_SBY pins. RTC power is provided
on the VCC_RTC pins. VCC_12V may or may not collapse in suspend states S3, S4, and S5.
3.5.1 Single Power Supply
4.75V to +20V main power is on the COM Express VCC_12V pins and standby power, if needed, is also provided on the
VCC_12V pins. The VCC_5V_SBY pins may be floating or may be tied to a 5V source on the carrier board. RTC power is
provided on the VCC_RTC pins.
3.5.2 Supply Current (Windows)
The testing performed to capture the supply current data used tested modules mounted on a Kontron evaluation
board with a mouse and keyboard connected. The power consumption tests were executed in Windows XP (with SP3)
using a tool to stress the CPU at 100 % load. The power measurement values were captured after 15 minutes of full
load or a stable CPU core temperature of 90°C. To ensure a stable die temperature, a corresponding heat sink was
used to hold the temperature under the critical trip point. The modules were tested using the maximum CPU
frequency. For more detailed information, refer to the “Power Consumption” diagrams on the EMD Customer section
of the Kontron website.
Module Power Consumption by Main
Input Supply Voltage
4.75V 12V 20V
Windows Desktop (idle) 5.0W 5.6W 6.0W
TAT at maximum power configuration 33.8W 34.4W 35.0W
S3 with Wake-on-LAN disabled 0.7W 0.8W 0.9W
S5 with Wake-on-LAN disabled 0.4W 0.5W 0.6W
S5 Eco ~0.005W 0.02W 0.05W
NOTE: It is impossible to test for all possible applications on the market. There may be an application that draws
more power from the CPU than the values measured in the table above. Take this into consideration if you are at the
limit of the thermal specification, in which case you should consider improving your thermal solution.
DRAFT COPY FOR REVIEW ONLY
DRAFT COPY FOR REVIEW ONLY