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VPX336 – Medium Power / Flexible Configuration – 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 voltage range as well as high overall efficiency is achieved. Further each individual main converter is oversized for maximum current which allows different VPX336 power supply configurations having either a stronger 12V or a more evenly distributed power over the 3 main output channels.

The new VPX336 series is designed 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.

 

Features

VPX336 Power Supply Features

  • Compliant to VITA 62 specification
  • High efficiency up to up to 90%, 87% at full load of 360W
  • Wide input voltage range: 15 V … 40 V DC (nominal 28V), reverse polarity protection,
  • optional 48V DC input (33.5-49V)
  • 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 liquid / wet / aluminum electrolytic capacitors
  • MIL-STD-461, MIL-STD-704, MIL-STD-1275 compliance (to be tested as per VITA 62, par. 3.2.1)
  • Ruggedized to MIL­STD­810, with standard conformal coating (other on request)
  • Dimensions: 100.0 mm x 168.5 mm x 19.56 mm (3.94 inch x 6.63 inch x 0.77 inch)
  • Weight 0.60kg (1.3lbs)

Ordering Information

Standard configurations (others possible by request).

ItemDescriptionInputVS1 [+12V]VS2 [+3.3V]VS3 [+5V]Vaux1 [+12V]Vaux2 [-12V]Vaux3 [+3.3V]
VPX336DMA360W 3U VITA 62 VPX power supply Standard Version, MIL-STD-461, -704,-1275 compliant, with standard acrylic conformal coating28V DC15A20A30A1A1A6A
VPX336DMB360W 3U VITA 62 VPX power supply - Max 12V Version, MIL-STD-461, -704,-1275 compliant, with acrylic conformal coating28V DC20A20A20A1A1A6A
VPX336DMD360W VITA 62 VPX power supply - Max 5V Version, MIL-STD-461, -704,-1275 compliant, with acrylic conformal coating28V DC10A10A40A1A1A6A
VPX336DMS306W VPX power supply - SOSA aligned Version, MIL-STD-461, -704,-1275 compliant, with acrylic conformal coating28V DC20A20A----
VPX336EMA360W 3U VITA 62 VPX power supply 48V Version, MIL-STD-461, -704,-1275 compliant, with standard acrylic conformal coating48V DC15A20A30A1A1A6A

Technical Information

Technical Details (Rev 1)

360W VITA62 VPX Power Supply

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  [derating to be checked 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 Power360 W
Maximum Input Power~400W
Maximum Dissipated Power @ max. Power~40 W
Nominal Input Voltage28 V DC (optional 48V DC)
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 / 5Vsee tables in "Ordering Information" for different power configurations
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 (to be tested) in compliance with sections CE102, CS101, CS114, CS115, CS116. See user manual for more details.
MIL-STD-704F ComplianceDesigned (to be tested) in compliance for normal transients (LDC105), abnormal transients (LDC302) and distortion spectrum (LDC103). External hold-up circuit optional.  See user manual for more details.
MIL-STD-1275D ComplianceDesigned (to be 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.  See user manual for more details.
Compatibility / Environmental
CompatibilityVDE 0805, IEC 950
Designed to meet MIL-STD-810G (Environmental)With standard acrylic conformal coating to withstand sand, dust and salt atmosphere.
 

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