500M Data Sheet
P/N 94089 FEATURES
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Open VPX VITA 62 compliant
3U VPX, 1.0” pitch single slot
Wide input range: 18-36V
Input transient protection
Three high power DC outputs:
+12V/25A, +5V/40A, +3.3V/12A
Multiple auxiliary DC outputs:
+3.3V Aux/1A, -12V Aux/0.375A, +12V Aux/0.375A
Low noise & ripple
Parallelable outputs (+12V/25A, +5V/40A, +3.3V/12A)
Input-output isolation
Excellent load regulation, +/- 0.05% (12V output)
Overcurrent, Overvoltage, Over temperature protection
Efficiency up to 90%
High power density
Conduction cooled at card edge
Conformal coating on PWB
Internal EMI filter designed to meet MIL-STD-461F
MIL-STD-461F, CE-102 compliance
ENABLE*, INHIBIT* controls per VITA 62
Output voltage FAIL* signal
LED indication
OVERVIEW
The Behlman VPXtra500M series COTS DC to DC power supply is a rugged, highly reliable, conduction
cooled, switch mode unit built for high-end industrial and military applications. The VPXtra500M is VITA
62, Open VPX compliant, 3U, power supply that delivers 550 Watts of DC power via six outputs. The
+12V, +5V, and +3.3V output can be paralleled for higher power and redundancy. The VPXtra500M
accepts 28 VDC input, IAW MIL-STD-704, and can supply a high power DC output.
The VPXtra500M power supply has no minimum load requirement and has overvoltage and short circuit
protection as well as over current and thermal protection. The power supply is designed to support the
rigors of mission critical airborne, shipboard, vehicle and mobile applications.
Designed and manufactured with Xtra-Cooling technology, Xtra-Reliable design and Xtra-Rugged
construction makes the Behlman VPXtra500M your best choice.
Absolute Maximum Ratings (Stresses above those listed below may cause permanent damage
to the unit)
Parameter
Input Voltage
Input Current
Operating
Temperature
Storage Temperature
Isolation Voltage
Isolation Voltage
Isolation Voltage
Isolation Resistance
Notes
Min
18
Measured at Card Edge
Input to Output
Input to Case
Output to Case
Input to Case
Max
36
38
Units
V
A
-40
71
°C
-40
105
500
500
500
°C
V
V
V
MΩ
10
Typical
VPXtra500M.DS.00 Sept. 14 Page 1 of 12 Input Characteristics
Parameter
Operating Input
Voltage Range
Turn-On Threshold
Turn-Off Threshold
Input Standby Current
Input Standby Current
Input No Load
Current
Notes
Min
Typical
Max
Units
18
28
36
V
28V Input, Enable De-asserted (Input Off),
Inhibit Asserted (Output Off)
28V Input, Enable Asserted (Input On),
Inhibit Asserted (Output Off)
28V Input, Enable Asserted (Input On) and
Inhibit De-asserted (Output On)
17.6
16.9
V
V
20
mA
40
mA
750
mA
Output Characteristics, +12V/25A Output
Parameter
Output Voltage
Setpoint
Line Regulation
Load Regulation
Output Ripple/Noise
Peak to Peak
Output Ripple/Noise
RMS
Maximum Capacitive
Load
Output Current
Range
Output Overvoltage
Protection
Output Overcurrent
Protection
Transient Response
Notes
Min
Typical
Max
Units
11.80
12.00
12.17
V
(18-36V input range, 100% Output Load)
(28V input)
0.05
0.05
0.25
0.25
%
%
See Note 1
80
120
mVp-p
50
mVrms
12,000
uF
25
A
See Note 1
0
14.2
14.8
15.4
V
27.5
30
32.5
A
Min
Typical
Max
Units
4.95
5.00
5.05
V
0.1
0.75
0.3
1
%
%
See Note 1
50
mVp-p
See Note 1
25
mVrms
12,000
uF
40
A
See Figure 8
Output Characteristics, +5V /40A Output
Parameter
Output Voltage
Setpoint
Line Regulation
Load Regulation
Output Ripple/Noise
Peak to Peak
Output Ripple/Noise
RMS
Maximum Capacitive
Load
Output Current
Range
Output Overvoltage
Protection
Output Overcurrent
Protection
Transient Response
Notes
(18-36V input range, 100% Output Load)
(28V input)
0
5.9
6.1
6.4
V
44
48
56
A
See Figure 10
VPXtra500M.DS.00 Sept. 14 Page 2 of 12 Output Characteristics, +3.3V /12A Output
Parameter
Output Voltage
Setpoint
Line Regulation
Load Regulation
Output Ripple/Noise
Peak to Peak
Output Ripple/Noise
RMS
Max. Capacitive Load
Output Current
Range
Output Overvoltage
Protection
Output Overcurrent
Protection
Transient Response
Notes
Min
Typical
Max
Units
3.267
3.300
3.333
V
0.1
0.75
0.3
1
%
%
See Note 1
50
mVp-p
See Note 1
25
mVrms
10,000
uF
12
A
(18-36V input range, 100% Output Load)
(28V input)
0
4.0
4.3
4.6
V
16.5
18
20
A
Min
Typical
Max
Units
-11.88
-12.00
-12.12
V
0.1
1
0.3
2
%
%
See Note 1
120
mVp-p
See Note 1
25
mVrms
0.375
A
See Figure 9
Output Characteristics, -12V Aux /0.375A Output
Parameter
Output Voltage
Setpoint
Line Regulation
Load Regulation
Output Ripple/Noise
Peak to Peak
Output Ripple/Noise
RMS
Output Current
Range
Output Overcurrent
Protection
Notes
(18-36V input range, 100% Output Load)
(28V input)
0
0.500
0.540
A
Output Characteristics, +12V Aux/0.375A Output
Parameter
Output Voltage
Setpoint
Line Regulation
Load Regulation
Output Ripple/Noise
Peak to Peak
Output Ripple/Noise
RMS
Output Current
Range
Output Overcurrent
Protection
Notes
Min
Typical
Max
Units
11.4
12.0
12.6
V
0.1
1
0.3
2
(18-36V input range, 100% Output Load)
(28V input)
See Note 1
120
See Note 1
25
%
%
mVpp
mVrm
0.375
A
0.650
A
0
0.500
s
VPXtra500M.DS.00 Sept. 14 Page 3 of 12 Output Characteristics, +3.3V Aux/1A
Parameter
Notes
Output Voltage
Setpoint
Line Regulation
(18-36V input range, 100% Output Load)
Load Regulation
(28V input)
Output Ripple/Noise
See Note 1
Peak to Peak
Output Ripple/Noise
See Note 1
RMS
Output Current
Range
Output Overcurrent
Protection
Min
Typical
Max
Units
2.267
3.3
3.333
V
0.1
0.5
0.3
1
%
%
50
mVp-p
25
mVrms
1
A
2.2
A
0
1.6
Note 1: Ripple and noise measured at output connector, across parallel connection of 10uF tantalum and
0.1uF ceramic capacitors, 20MHz Bandwidth
General Characteristics
Parameter
Notes
Min
Power
Efficiency 100% Load
Efficiency 50% Load
Turn-On Delay,
3.3V output
Turn-On Delay,
+12V output
+12V@25A, +3.3V@12A, +5V@40A,
-12V Aux@0.375A, +12V Aux@0.375A,
+3.3V Aux@ 1A, 28V Input. See Figure 14
+12V@12A, +3.3V@6A, +5V@20A ,
-12V Aux@.150A, +12V AUX @0.150A.
+3.3V Aux @ 0.5A, 28Vin
From application of input power (ENABLE*
is asserted). See Figures 2 & 3
From INHIBIT* de-assertion.
See Figures 4 & 5.
Typical
Max
Units
550
W
89
%
90.5
%
50
ms
80
ms
Controls and Signals (per VITA 62)
Name
Function
ENABLE* (Input)
Input power control
INHIBIT* (Input)
Output power control for +12V, +5V, +3.3V,
-12V Aux and +12V Aux outputs
FAIL* (Output)
Reports out of tolerance output voltages
Description
Active Low, referenced to SIG RTN.
When asserted, internal input power
bus is enabled
Active Low, referenced to SIG RTN.
When asserted, +12V, +5V, +3.3V,
-12V Aux and +12V Aux outputs are
disabled.
Open Drain Output (3.3V, 20mA)
external pull up required. Logic low
indicates output voltage(s) out of
tolerance.
Output Power Status vs. Input Power and Control Signals
Input Power
ENABLE*
INHIBIT*
Not present
Present
Present
Present
X
Not asserted (high)
Asserted (low)
Asserted (low)
X
X
Asserted (low)
Not asserted (high)
+12V, +5V,
+3.3V, ±12V Aux
outputs
OFF
OFF
OFF
ON
+3.3V Aux output
OFF
ON
ON
ON
VPXtra500M.DS.00 Sept. 14 Page 4 of 12 Indicators
Indicator
DC Status, Bi-Color
LED (Red and Green)
Description
Red LED indicates outputs off or out of range; Green LED indicates outputs on.
Note 1: All measurements are performed at Nominal Input (28VDC) and at ambient temperature of 25° C,
unless otherwise specified.
Paralleling Capabilities:
All three main outputs (+12V/25A, +5V/40A and +3.3V/12A) of Behlman’s VPXtra500M series power
supplies can be paralleled for higher output power and redundancy with one or more VPXtra500M. See
Figure
Analog Share
- An analog signal passed via the share line for each output transmits output current
information to maintain current sharing less than 3% between modules. Connecting share
lines of multiple cards together enables sharing.
- Up to three modules can be paralleled in this way.
- Outputs of each voltage shared must be connected between paralleled power supplies
- Output sense lines of all paralleled cards must be connected at same point.
- Figure 1 Shows typical connection diagram for parallel operation of +12V output similar
connections shall be made to parallel both the +5V and +3.3V output
Figure 1: Connection Diagram for Parallel Operation of +12V Output VPXtra500M.DS.00 Sept. 14 Page 5 of 12 Output turn-on delays Figure 2: Turn‐on delay from application of power, Main Supplies, ENABLE* asserted, INHIBIT* de‐asserted Figure 3: Turn‐on delay from application of power, Aux Supplies, ENABLE* asserted, INHIBIT* de‐asserted Figure 4: Turn‐on delay from INHIBIT* de‐assertion, Main Supplies VPXtra500M.DS.00 Sept. 14 Page 6 of 12 Figure 5: Turn‐on delay from INHIBIT* de‐assertion, Aux Supplies Figure 6: Turn‐on sequence main supplies ENABLE* asserted, INHIBIT* de‐asserted VPXtra500M.DS.00 Sept. 14 Page 7 of 12 Load Transient Responses:
Figure 7: +12V output transient response, 50%‐75% load change Figure 8: +3.3V output transient response, 50%‐75% load change Figure 9: +5V output transient response, 50%‐75% load change VPXtra500M.DS.00 Sept. 14 Page 8 of 12 Volt-Amp Characteristics:
Figure 10: +12V Output Volt‐Amp Characteristic Figure 11: +5V Output Volt‐Amp Characteristic Figure 12: +3.3V Output Volt‐Amp Characteristic VPXtra500M.DS.00 Sept. 14 Page 9 of 12 Power Usage/Dissipation Curves: Efficiency
0.95
0.9
Efficiency
0.85
0.8
18V
0.75
28V
0.7
36V
0.65
0.6
10
20
30
40
50
60
70
80
90
100
% of Max Output Power
Figure 13: Efficiency vs. Load for Minimum, Nominal and Maximum input voltage Power Dissipation
Power Disapation (W)
120
100
80
60
18V
40
28V
20
36V
0
10
20
30
40
50
60
70
80
90
100
% of Max Output Power
Figure 14: Power dissipation vs. Load for Minimum, Nominal and Maximum input voltage Input Current (A)
Input Current 40
35
30
25
20
15
10
5
0
Iin @ 18V
Iin @ 28V
Iin @ 36V
10
20
30
40
50
60
70
80
90
100
% of Max Output Power
Figure 15: Input Current Vs Output Power
VPXtra500M.DS.00 Sept. 14 Page 10 of 12 EMI per MIL-STD-461F, CE102: Figure 16: CE102, 28Vin, Max Load
Mechanical Dimensions: VPXtra500M.DS.00 Sept. 14 Page 11 of 12 Connector Pin Definition: VPXtra500M.DS.00 Sept. 14 Page 12 of 12