Table of Contents
Advertisement
KTD-00629-K
4.2 Power Connector (ATXPWR)
The 786LCD/mITX is designed to be supplied from a standard ATX power supply.
Power Connector 786LCD/mITX
Pull
Note
U/D
Ioh/Iol
-
-
-
-
4K7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Note: -5V supply is not used onboard.
The requirements to the supply voltages are as follows (also refer to ATX specification):
Supply
Min
3V3
3.14V
5V
4.75V
SB5V
4.75V
+12V
11.4V
–12V
–13.2V
Control signal description:
Signal
Description
P_OK
Active high signal from the power supply indicating that the 5V and 3V3 supplies are within
operating limits. It is strongly recommended to use an ATX supply with the 786LCD/mITX
boards, in order to implement the supervision of the 5V and 3V3 supplies. These supplies are
not supervised onboard the 786LCD/mITX boards.
PS_ON#
Active low open drain signal from the board to the power supply to turn on the power supply
outputs. Signal must be pulled high by the power supply.
786LCD/mITX Family
Public
User Manual
Type
Signal
PWR
+12V
PWR
SB5V
I
P_OK
PWR
GND
PWR
5V
PWR
GND
PWR
5V
PWR
GND
PWR
3V3
PWR
3V3
Max
Tolerance
3.46V
+/-5%
5.25V
+/-5%
5.25V
+/-5%
12.6V
+/-5%
–10.8V
+/-10%
Date: 2009-10-13
PIN
Signal
Type
10
20
5V
PWR
9
19
5V
PWR
8
18
-5V
PWR
7
17
GND
PWR
6
16
GND
PWR
5
15
GND
PWR
4
14
PSON#
OC
3
13
GND
PWR
2
12
-12V
PWR
1
11
3V3
PWR
Page
20 of 77
Pull
Ioh/Iol
U/D
Note
-
-
-
-
-
-
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Advertisement
Table of Contents
