VPTHVM-270 Bus Converter

With up to 200W of output power, this regulated bus converter module operates from a 270V bus to step down the power to create a 28V bus for your power system. A wide input voltage range accommodates MIL-STD-704 input power requirements for avionics, mobile, ground and other applications. The high efficiency design reduces input power requirements and eases thermal management. 

  • Up to 200W output power
  • Single output
  • Use in conjunction with any VPT DV or VPT Series 28V DC-DC converters
  • Very high efficiency – up to 91%
  • Wide input voltage range: 160 to 500 Volts per MIL-STD-704
  • High input transient voltage - 500V for 1 second
  • Low input transient voltage - 160V for 1 second
  • Operation over a wide -55°C to +100°C STANDARD
  • High isolation: 3000V
  • 6-sided metal cases for improved EMI performance and mechanical/environmental performance
  • Parallel up to 5 units with current sharing
  • Undervoltage lockout, fixed frequency, output soft start,current limit protection
  • No optoisolators for ultimate reliability
  • Environmental screening including a 96 hour burn-in, 100% electrical testing, and temperature cycling testing STANDARD
  • Testing to JESD22, MIL-STD-810, MIL-STD-883
  • Designed and manufactured in a facility certified to ISO 9001, J-STD-001, and IPC-A-610

To provide you with the most accurate data for the actual performance of this product once deployed, please note that the electrical performance data provided below is at Tcase = -55° C to +100° C, Vin= +270V ±5%, full load, unless otherwise specified.

Parameter Conditions VPTHVM-270
Min Typ Max Units
Input Voltage Continuous
Transient (1 second)

180
160

 

350
500

Vdc

Output Voltage

Vin = 270
Vin = 160V to 500V

26
16

27
27

30
30

Vdc

Output Power (1)
0
200

W

Efficiency Vin: 270V 89 91

%

Input Ripple Vin = 270, Full Load, 20Hz to 10MHz
30   80

mApp

Output Ripple Vin = 270, Full Load, 20Hz to 10MHz
100  250

mVpp

Isolation 3000 VDC 100


mΩ

(1) Derate linearly to 0 at 110 deg. C






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