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4/ Electrical Specification
4.1. Power Supply Specifications
Power is supplied by either an ATX (12 V + 5 V standby) or a single power wide range (8.5 V to 20 V).power supply.
The following table lists the power supply specifications.
Supply Voltage (VCC)
Standby Voltage
Supply Voltage Range (VCC)
4.2. Power Supply Voltage Rise Time
The input voltage rise time is 0.1 ms to 20 ms from input voltage ≤10% to nominal VCC. To comply with the ATX
specification there must be a smooth and continuous ramp of each DC input voltage from 10% to 90% of the DC input
voltage final set point.
4.3. Power Supply Voltage Ripple
The maximum power supply voltage ripple is 200 mV peak-to-peak at 0 MHz – 20 MHz.
4.4. Inrush Current
The maximum inrush current at 5 V standby is 2 A, and from state G3 (Module is mechanically completely off, with no
power consumption) or state S5 (module appears to be completely off) to state S0 (module is fully usable) the
maximum inrush current meets the SFX Design Guide.
4.5. Power Management
If the supply voltage (VCC) is removed, by applying 5 V ±5% to the COMe connector's 5 V Standby power pins
(V_5V_STBY) the following ACPI suspend power states can be supported to save power:
S4- Hibernate where the module appears to be off and power consumption is kept to a minimum
S5 – Soft-off states where the modules appears to be off
If the supply voltage is applied to the COMe connector's VCC pins (VCC_12V), the following ACPI wake up power state
is supported:
SO – Wake-up state where the module is fully functional and supply voltage(VCC) is required to power the
module
Power management options for the module and CPU are available within the BIOS setup:
Advanced>ACPI Settings>>Enable ACPI Auto Config>Enable/Disable
Advanced>Lid Switch Mode>Enable/Disable
Advanced>Sleep Button Mode>Enable/Disable
IntelRCSetup>Processor Configuration>ACPI 3.0 T-states>Enable/Disable
For further ACPI information, see Chapter 9.1: ACPI Power States.
www.kontron.com
12 V
5 V ±5%
8.5 V to 20 V ( wide range voltage input across the whole temperature range)
COMe-bDV7 - User Guide, Rev 1.0
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