Chapter:
Connectors
Power Supply
page 14
ADL Embedded Solutions
ADLE3800PC
3.2 Power Supply
The power supply of the hardware module is realized via a 2x5-pin connector (Molex PS 43045-10xx,
mating connector: Molex PS 43025-10xx). Both 5V VCC/SVCC and 12V need to be provided. The 12V
input can optionally be tied to 5V if 12V is not required by attached peripherals.
The ADLE3800PC includes circuitry that will notify an intelligent power
supply to shut down if the processor reaches a critical temperature. This
is achieved by deasserting the (low-active) PS_ON# signal found on the SM-Bus connector. When
PS_ON# is no longer pulled low, an intelligent power supply would take this as a signal to shut
down power. For this to work, PS_ON# must be connected to the power supply's PS_ON input. If
PS_ON# is not otherwise connected, the ADLE3800PC can be damaged beyond repair if a thermal
shutdown event occurs. In rare instances, if power is not shut down, the board will continue to
heat up until failure occurs.
Since this is a 90 degree connector, the symbol in the drawing below
represents the connector face as seen from the side (PCB on bottom)
rather than from above.
Description
Name
Pin
Name
Description
12 volt supply
12V
1
6
12V
12 volt supply
ground
GND
2
7
GND
ground
ground
GND
3
8
SVCC
standby-supply 5V
ground
GND
4
9
GND
ground
5 volt supply
VCC
5
10
VCC
5 volt supply
N
OTICE
N
OTICE
