Electrical Specification; Power Supply Specification - Kontron COMh-caRP User Manual

3.6 Electrical Specification
The module powers on by connecting to a carrier board via the COM-HPC interface connectors.
The COM-HPC interface connector pins on the module limit the amount of power received.
Before connecting the module's interface connector to the carrier board's corresponding
connector, ensure that the carrier board is switched off and disconnected from the main
power supply. Failure to disconnect the main power supply could result in personal injury
and damage to the module and/or carrier board.
Observe that only trained personnel aware of the associated dangers connect the
module, within an access controlled ESD-safe workplace
3.6.1 Power Supply Specification
The power specification of the module supports a supply voltage of 12 V. Other supported voltages
are 5 V standby and 3.3 V RTC battery input
Supply Voltage (VCC)
Standby Voltage (VCC_5V_SBY) 5 V ± 5% - Note: Standby voltage is not mandatory for operation
RTC Voltage (VCC_RTC)
Table 29: Electrical Specification
Only connect to an external power supply delivering the specified input rating and
complying with the requirements of Safety Extra Low Voltage (SELV) and Limited Power
Source (LPS) of UL/IEC 60950-1 or (PS2) of UL/IEC 62368-1.
To protect external power lines of peripheral devices, make sure that the wires have the
right diameter to withstand the maximum available current and the enclosure of the
peripheral device fulfils the fire-protection requirements of IEC/EN 62368-1.
If any of the supply voltages drops below the allowed operating level longer than the
specified hold-up time, all the supply voltages should be shut down and left OFF for a
time long enough to allow the internal board voltages to discharge sufficiently.
If the OFF time is not observed, parts of the board or attached peripherals may work
www.kontron.com
12 V ± 5% COMh-caAP: Widerange Input 8V - 20V
2.8 V to 3.47 V
COMh-caAP User Guide
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