User's Manual l TQMx50UC UM 0101 l © 2018 TQ-Group
Page 6
3.
FUNCTIONAL SPECIFICATION
3.1
Block Diagram
The following illustration shows the block diagram of the TQMx50UC.
Illustration 1:
Block Diagram TQMx50UC
3.2
Electrical Specification
3.2.1
Supply Voltage Characteristics
The TQMx50UC supports a wide-range voltage input from 8.5 V to 20 V.
The following supply voltages are specified at the COM Express™ connector:
Wide input:
8.5 V to 20 V
maximum input ripple: ±100 mV
VCC_5V_SBY:
4.75 V to 5.25 V
maximum input ripple:
±50 mV
VCC_RTC:
2.0 V to 3.3 V
maximum input ripple:
±20 mV
The input voltages shall rise from 10 % of nominal to 90 % of nominal within 0.1 ms to 20 ms (0.1 ms ≤ Rise Time ≤ 20 ms).
There must be a smooth and continuous increase of each DC output voltage from 10 % to 90 % of its final set point within the
regulation range.
Note: Power source
For single supply operations, the 5 V Standby voltage is not required.
VCC_5V_SBY can be left open.
