TIDT280 May   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Considerations
    3. 1.3 Dimensions
  5. 2Testing and Results
    1. 2.1 Efficiency
    2. 2.2 Loss
    3. 2.3 Load Regulation
    4. 2.4 Line Regulation
    5. 2.5 Thermal Images
    6. 2.6 Bode Plots
      1. 2.6.1 9-V Input Voltage
      2. 2.6.2 24-V Input Voltage
      3. 2.6.3 48-V Input Voltage
      4. 2.6.4 56-V Input Voltage
  6. 3Waveforms
    1. 3.1 Switching
      1. 3.1.1 Transistor Q5 (Low-Side FET)
        1. 3.1.1.1 Drain - Source
          1. 3.1.1.1.1 9-V Input Voltage
          2. 3.1.1.1.2 56-V Input Voltage
        2. 3.1.1.2 Gate - Source
          1. 3.1.1.2.1 9-V Input Voltage
          2. 3.1.1.2.2 56-V Input Voltage
      2. 3.1.2 Transistor Q1 (High-Side FET)
        1. 3.1.2.1 Source - Drain (Referenced to VIN)
          1. 3.1.2.1.1 9-V Input Voltage
          2. 3.1.2.1.2 56-V Input Voltage
        2. 3.1.2.2 Gate - Source
          1. 3.1.2.2.1 9-V Input Voltage
          2. 3.1.2.2.2 56-V Input Voltage
    2. 3.2 Output Voltage Ripple
    3. 3.3 Input Voltage Ripple
    4. 3.4 Load Transients
      1. 3.4.1 9-V Input Voltage
      2. 3.4.2 56-V Input Voltage
    5. 3.5 Start-Up Sequence
      1. 3.5.1 9-V Input Voltage
      2. 3.5.2 56-V Input Voltage
    6. 3.6 Shutdown Sequence
      1. 3.6.1 9-V Input Voltage
      2. 3.6.2 56-V Input Voltage

Features

  • Wide input voltage range supports telecom, industrial, and truck applications
  • If using 100-V transistors, the circuit can withstand high load dump
  • Output can be modified from –5 V to –15 V
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