VMEbus Power Supplies

The table below shows the power supply voltages and current capabilities for VMEbus modules. The current carrying capacities are shown for each VMEbus module. The current carrying capacity of a VMEbus module is limited by the capacity of the connector pins, which are required to be IEC Class II connectors (or better).

The current carrying capacities of standard connectors are generally limited to 70C, and usually don't conform to military temperature ranges of -65C to +125C. When standard connectors are used in wide temperature military systems, the current carrying capacities will be lower. However, military style connectors are available on VMEbus modules. Contact the board manufacturer for more details.

 

Power Supply Voltages & Current Capability

Parameter
(NOTE: 1)

Power Supply Rail

 +5V

+12V

-12V

+5VSTBY

+3.3V

+/- V1/V2
Volts, maximum

 5.250

12.60

-11.64

5.250

3.45

75.0
 Volts, nominal

5.000

12.00

-12.00

5.000

3.30

48.0
 Volts, minimum

4.875

11.64

-12.60

4.875

3.25

38.0
 Noise, mVpp, <10MHz

50

50

50

50

(NOTE: 2)

N/A

VMEbus Version

Current Carrying Capacity, Per-slot, Maximum, Amp

VMEbus
IEEE-1014

3U

3.6

1.5

1.5

1.5

-

-

6U

7.2

1.5

1.5

1.5

-

-

VME64

3U

6.0

1.5

1.5

1.5

-

-

6U

10.8

1.5

1.5

1.5

-

-

VME64x
(NOTE: 3)

 3U

 6.0

1.5

1.5

1.5

12.0

1.4

6U

10.8

1.5

1.5

1.5

12.0

1.4

VME64x
Hot-swap

 3U

3.6

1.5

1.5

1.5

12.0

1.4

6U

7.2

1.5

1.5

1.5

12.0

1.4

NOTE 1: Ta <= 70 C
NOTE 2: Inclusive of power supply voltage, < 20 Mhz
NOTE 3: Maximum current assumes that VPC (pre-charge) pins are used for +5 VDC.

This page last updated: August 11, 1999

Copyright 1999 Wade D. Peterson. All rights reserved.

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