adld25pc Advanced Digital Logic, Inc., adld25pc Datasheet - Page 13

• Manufacturer Part Number: adld25pc
• Description: Highly Complex Computer Motherboard In The Pc/104
• Manufacturer: Advanced Digital Logic, Inc.

Power Supply
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). The 12V input can be left unconnected if not required by
attached peripherals.
The ADLD25PC 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 ADLD25PC 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.
ADL Embedded Solutions ADLD25PC
12 volt supply
ground
ground
ground
5 volt supply
Description
C
N
AUTION
OTE
12V
GND
GND
GND
VCC
Name
1
2
3
4
5
Pin
6
7
8
9
10
12V
GND
SVCC
GND
VCC
Name
12 volt supply
ground
standby-supply 5V
ground
5 volt supply
Chapter: Connectors
Description
page 13