Home BQ4H Family
BQ4H Family

Telecom 400 V Isolated Bus Converters

See all products in this series

Product Details

The BusQor® bus converters are the next-generation, board-mountable, isolated, fixed switching frequency DC-DC converters that uses synchronous rectification to achieve extremely high conversion efficiency. The power dissipated by the converter is so low that a heatsink is not required, which saves cost, weight, height, and application effort. BusQor converters are ideal for creating the mid-bus voltage required to drive point-of-load (non-isolated) converters in Intermediate Bus Architecture.

Operational Features

  • Delivers 6.0 V, 9.6 V, 12 V, 13.6 V or 48 V bus for Intermediate Bus Architectures (IBA)
  • Industry standard pin-out configurations and at Full Load standard footprints
  • Output Voltage Ripple: <0.3% of Vout (typ.) pk-pk
  • Input Ref. Ripple Current <5% of Iin (typ.) rms
  • Current Share Accuracy: ±10%
  • Up to 4250 Vdc

Control Features

  • Input under-voltage lockout (UVLO)
  • Output current limit (OCP) and short circuit protection
  • Output over-voltage protection (OVP)
  • Thermal shutdown (OTP)
  • Back-drive protection (starts into pre-biased load)
  • On/Off control referenced to input side
  • Remote sense
  • Output voltage trim on select models
BQ4H Family
230 - 400 V
Continuous Input
230 - 450 V
Transient Input
Up to 97%
Efficiency
-40 - +100 ºC
Operating Temp
Expand and Optimize Your Setup
Enhance performance and expand functionality with accessories designed specifically for our product line.