TIDT244 July   2021

 

  1. 1Description
  2. 2Test Prerequisites
    1. 2.1 Voltage and Current Requirements
    2. 2.2 Required Equipment
  3. 3Testing and Results
    1. 3.1 Thermal Images
    2. 3.2 Efficiency and Power Dissipation Graph
    3. 3.3 Efficiency and Power Dissipation Data
    4. 3.4 Current Regulation
    5. 3.5 Voltage Regulation
  4. 4Waveforms
    1. 4.1 Start-up
    2. 4.2 Switch Node
    3. 4.3 Output Voltage Ripple
    4. 4.4 Current Loop to Voltage Loop Transition
    5. 4.5 Voltage Loop to Current Loop Transition
    6. 4.6 Bias Voltage Start-up
    7. 4.7 Bias Voltage Switch Nodes
    8. 4.8 Output Current Sense Signal

2.1 Voltage and Current Requirements

Table 2-1 Voltage and Current Requirements
Parameter Specifications
Input voltage range 340 V–420 V, after > 335-V startup
Output voltage 282 V–400 V, (CHG VSET DAC = 0 Vdc–3 Vdc)
Output current 0 A–2 A, (CHG ISET DAC = 0% to 100%, 100 kHz, 2.5 V)
Switching frequency 100 kHz
Isolation No
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