DC/DC Converter Selection Guide

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Home > Products > Custom Products > Custom Design Examples > Automotive Industry

Automotive Industry

42 volt Automotive Electrical Systems Bi-directional One Kilowatt Converter
42 -14 V dc 14 - 42 V dc

Buck Mode:    
  Nominal Output Voltage: 14.2 Vdc @ 25C
  Maximum Output Current:   68 Amps
  Minimum Output Current1:   8.5 Amps
  EMI Specifications:   SAE J1113/41 class 1 narrowband limits
  Boost Mode:    
  Nominal Output Voltage:   42.6 Vdc @ 25C
  Maximum Output Current2:   36.6 Amps
  Minimum Output Current1,2:   1.9 Amps
  EMI Specifications:   SAE J1113/41 class 1 narrowband limits
  Low Voltage Bus Input Range:   11Vdc - 16 Vdc
  High Voltage Bus Input Range:   33Vdc - 55 Vdc
  Switching Frequency:   82 kHz nominal
  Efficiency (at rated load):   90% minimum
  Operating Temperature Range:   -40 C to +70 C
  Storage Temperature Range:   <-40 C to +75 C
  Converter Dimensions:   17.63" x 6" x 1.8" (44.8cm x 15.2cm x 4.6cm)
  Converter Dimensions with Heatsink :   17.63" x 6" x 2.8" (44.8cm x 15.2cm x 7.1cm)
  Power Connections: 14V   Anderson PP75 Connectors
  Power Connections: 42V   Anderson PP45 Connectors
  Logic Connections:   Sub D Miniature 15 pin
  Weight:   7.65 lb
  1. Minimum current that ensures a well-behaved stable system

  2. The low voltage current is regulated, therefore the high side current is determined by worst case bus voltages times the low voltage current while taking into consideration the power loss of the converter.

  3. BUCK mode = Power flow from 42V to 14V
    BOOST mode = Power flow from 14V to 42V

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