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 and 1275 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.



 

Main Features

  • Compliant to VITA 62 specification
  • Up to 400 W maximum power,
  • 3U size, 0.8"
  • 6 independent output voltages VS1 (12V), VS2 (3.3V), VS3 (5V), Vaux1(+12V), Vaux2(-12V), Vaux3 (3.3V)
  • up to 90% peak efficiency, 87% at full load of 400W
  • 28V DC input voltage, wide input range 15 V ... 40 V

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 MIL­STD­810, 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)
Item Description
VPX340DMA 400W VPX VITA 62 power supply, MIL-STD-461, -704,-1275 compliant, with standard acrylic conformal coating
VPX340DMA_P 400W VPX VITA 62 power supply, MIL-STD-461, -704,-1275 compliant, with parylene conformal coating

 

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 Factor 3U VPX CC
Pitch 4 HP / 0.8 inch
Weight 0.6 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 Isolation 1500 V
Input to Case Ground Isolation 500 V
Output to Case Ground Isolation 500 V
Case Ground to Safety Ground Resistance < 10 mΩ
Maximum Output Power 400 W
Maximum Input Power ~450W
Maximum Dissipated Power @ max. Power ~50 W
Nominal Input Voltage 28 V
Minimum Turn ON Voltage 14 V
Minimum Turn OFF Voltage 11 V
Maximum Continuous/Peak Input Voltage 40 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 Temperatures 125 °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 / 5V 15 A / 20 A / 40 A
Fixed Switching Frequencies 12V / 3V3 / 5V 300 kHz / 220 kHz / 410 kHz
Peak Efficiencies 12V / 3V3 / 5V 90% / 90% / 90%
Max. Output Ripple and Noise: 12V / 3V3 / 5V 40 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 / 5V 10 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 Current 1 A / 1 A / 4 A
Load Dependent Switching Frequency 600 Hz ... 130 kHz
Efficiency 80%
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 Compliance as per VITA 62 specification
MIL-STD-461F (EMI) Compliance Designed & 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 Compliance Designed & 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 Compliance Designed & 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  
Compatibility VDE 0805, IEC 950
Designed to meet MIL-STD-810G (Environmental) With standard acrylic conformal coating to withstand sand, dust and salt atmosphere.

 

Product Data Sheet  
VPX340 - High Efficiency / Medium Power - VITA 62 VPX Power Supply: Print Product Data Sheet

 

Documentation  
Manual/Tech-Notes: VPX340DMA manual
I2C and USB software GUI: WIENER_VPX_Tool
Introduction: WIENER_Power Supplies_intro

 

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