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VPX340 – High Efficiency / Medium Power – VITA 62 VPX Power Supply

WIENER VPX power supplies are commercial off-the-shelf (COTS), conduction cooled single stage converters according to the ANSI/VITA 62.0 specification. They can be used to power a VPX chassis and will fit into the standard envelope defined by VITA 48.0 specifications.

Using state of the art switching power technology a wide input range voltage range as well as high overall efficiency is achieved. The VPX340 and VPX315 series is designed and tested to be in compliance with MIL STD 461, 704, 1275 and 810 as per VITA 62. An embedded microprocessor allows monitoring and control via I2C bus and USB.
The VPX power supply mechanical dimensions are 3U x 4HP (0.80” slot). It is outfitted with connectors, keying and alignment mechanism as per VITA 62.

 

Features

VPX340 Power Supply Features

  • Compliant to VITA 62 specification
  • High efficiency up to up to 90%, 87% at full load of 400W
  • Wide input voltage range: 15 V … 40 V DC, reverse polarity protection
  • Voltage sense controlled, Over Voltage, Under Voltage, Over Current, Over Temperature protection
  • Microprocessor controlled, with I2C bus communication for monitoring (status, input and 6 output voltages and currents, temperatures), micro-USB connector for communication and firmware updates
  • No electrolytic capacitors
  • Compliant to VITA 62 specification
  • MIL-STD-461, MIL-STD-704, MIL-STD-1275 compliance tested (as per VITA 62, par. 3.2.1)
  • Ruggedized to MIL­-STD-­810, compliance tested, with standard conformal coating (other on request)
  • Dimensions: 100.0 mm x 170.0 mm x 20.3 mm    (3.9” x 6.69” x 0.8”)
  • Weight 0.60kg (1.3lbs)

Ordering Information

Standard configurations (others possible by request).

ItemDescription
VPX340DMA400W VPX VITA 62 power supply, MIL-STD-461, -704,-1275 compliant, with standard acrylic conformal coating
VPX340DMA_P400W VPX VITA 62 power supply, MIL-STD-461, -704,-1275 compliant, with parylene conformal coating

Technical Information

400W VITA62 VPX Power Supply

High efficiency, conduction cooled power supply according to VITA62 specification.

Power supply

Input

VS1 [+12V]

VS2 [+3.3V]

VS3  [+5V]

Vaux1 [+12V]

Vaux2 [-12V]

Vaux3 [+3.3V]

VPX340DMA

28 V DC

15 A

 20 A

40 A

1 A

1 A

4 A

 

Technical Details (Rev 7.1)

Form Factor3U VPX CC
Pitch4 HP / 0.8 inch
Weight0.6 kg / 1.3 Lbs
Operating Temperature (at wedge lock)-40 °C to 85 °C  [derate max power from 400 W to 200 W (linear) for 60 °C to 85 °C operation]
Storage Temperature-55 °C to 105 °C
Input to Output Isolation1500 V
Input to Case Ground Isolation500 V
Output to Case Ground Isolation500 V
Case Ground to Safety Ground Resistance< 10 mΩ
Maximum Output Power400 W
Maximum Input Power~450W
Maximum Dissipated Power @ max. Power~50 W
Nominal Input Voltage28 V
Minimum Turn ON Voltage14 V
Minimum Turn OFF Voltage11 V
Maximum Continuous/Peak Input Voltage40 V / ± 250 V (<1 ms spike)
Input Overvoltage Protection:Outputs disable if input voltage exceeds 42 VDC for > 600 ms (10 second auto-restart)
Maximum Internal Working Temperatures125 °C
Temperature Protection Sensing Point (internal)125 °C (Outputs disable when internal PCB temperature exceeds threshold)
Main Power VS1 / VS2 / VS3
Maximum Currents 12V / 3V3 / 5V15 A / 20 A / 40 A
Fixed Switching Frequencies 12V / 3V3 / 5V300 kHz / 220 kHz / 410 kHz
Peak Efficiencies 12V / 3V3 / 5V90% / 90% / 90%
Max. Output Ripple and Noise: 12V / 3V3 / 5V40 mVrms / 10 mVrms / 20 mVrms
(0-20 MHz Bandwidth)< 120 mVpp / < 50 mVpp / < 50 mVpp
Line Regulation: 12V / 3V3 / 5V.10 mV / 10 mV / 50 mV
Vin=Vin,min to Vin,max, Io and Tc fixed< 0.1%
Load Regulation: 12V / 3V3 / 5V10 mV / 10 mV / 10 mV
Overvoltage Protection +/-12V / 3V3 / 5V: Maximum Output Voltage (Sense Lines Open)12.1 V / 3.4 V / 5.2 V
Load Transient Recovery Time (no load to full load change condition)1 ms
Auxiliary Power Vaux-12V / Vaux+12V, Vaux+3.3V
Maximum Current1 A / 1 A / 4 A
Load Dependent Switching Frequency600 Hz ... 130 kHz
Efficiency80%
Max. Output Ripple and Noise (0-20 MHz Bandwidth)< 120 mVpp / < 50 mVpp / < 50 mVpp
Load Transient Recovery Time (no load to full load change condition)1 ms
MIL Standard Complianceas per VITA 62 specification
MIL-STD-461F (EMI) ComplianceDesigned & tested in compliance with sections CE102, CS101, CS114, CS115, CS116. Compliance tests performed by 3rd party and reports available upon request. See user manual for more details.
MIL-STD-704F ComplianceDesigned & tested in compliance for normal transients (LDC105), abnormal transients (LDC302) and distortion spectrum (LDC103). External hold-up circuit optional. Compliance tests performed by 3rd party and reports available upon request. See user manual for more details.
MIL-STD-1275D ComplianceDesigned & tested in compliance for MIL-STD-1275D 5.3.2.2 Exported Voltage Spikes, MIL-STD-1275D 5.3.2.3 Imported Voltage Spikes (Normal Mode & Generator Mode), MIL-STD-1275D 5.3.2.4 Imported Voltage Surges (Normal Mode & Generator Mode) and MIL-STD-1275D 5.3.2.5 Imported Ripple Voltage. Compliance tests performed by 3rd party and reports available upon request. See user manual for more details.
Compatibility / Environmental
CompatibilityVDE 0805, IEC 950
EnvironmentalWith standard acrylic or Parylene conformal coating to withstand sand, dust and salt atmosphere. Designed and compliance tested to MIL Standard 810G
MIL Standard 810Gas per VITA 62 specification
AltitudeMIL STD 810G Method 500 Procedure II
ShockOperating Shock Class OS2 as per MIL STD 810G Method 516 Procedure I
VibrationMIL STD 810G Method 514.6 Procedure I, and VITA 47 paragraph 4.4.3 /  Vibration Class V3
 

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