Kontron 886LCD-M/ATX, Руководство пользователя

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886LCD-M Family
KTD-00474-U Public User Manual Date: 2010-06-22 Page 25 of 81
4.2 Power Connector (ATXPWR)
The 886LCD-M/Flex, 886LCD-M/ATX and 886LCD-M/mITX is designed to be supplied from a standard ATX
power supply.
Power Connector 886LCD-M/Flex, 886LCD-M/ATX and 886LCD-M/mITX
Note
Pull
U/D Ioh/Iol Type Signal
PIN
Signal Type Ioh/Iol
Pull
U/D Note
- - PWR +12V 10 20 5V PWR - -
- - PWR SB5V 9 19 5V PWR - -
2 - - I P_OK 8 18 -5V PWR - - 1
- - PWR GND 7 17 GND PWR - -
- - PWR 5V 6 16 GND PWR - -
- - PWR GND 5 15 GND PWR - -
- - PWR 5V 4 14 PSON# OC - 22K/ 3
- - PWR GND 3 13 GND PWR - -
- - PWR 3V3 2 12 -12V PWR - -
- - PWR 3V3 1 11 3V3 PWR - -
Note 1: -5V supply is not used onboard.
Note 2: 4K7 pull-up resistor on old board revision.
Note 3: Pull-up to +5VSB.
The requirements to the supply voltages are as follows (also refer to ATX specification version 2.03):
Supply Min Max Tolerance
3V3 3.14V 3.46V +/-5%
5V 4.75V 5.25V +/-5%
SB5V 4.75V 5.25V +/-5%
+12V 11.4V 12.6V +/-5%
–12V –13.2V –10.8V +/-10%
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 886LCD-M/Flex,
886LCD-M/ATX and 886LCD-M/mITX boards, in order to implement the supervision of the 5V
and 3V3 supplies. These supplies are not supervised onboard the 886LCD-M/Flex, 886LCD-
M/ATX and 886LCD-M/mITX boards.
PS_ON# Active low open drain output with pull-up to S5V. Used to turn on power supply
outputs.