TIDT320A january   2023  – july 2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Functional Block Diagram
    3. 1.3 Pin Functions
  6. 2Waveforms
    1. 2.1 Switching Frequency and Operating Modes
    2. 2.2 Output Voltage Ripple
    3. 2.3 Load Transients
    4. 2.4 Start-Up Sequence
  7. 3Testing and Results
    1. 3.1 Efficiency Graphs
    2. 3.2 Efficiency Data
    3. 3.3 No Load and OFF State Power Consumption
    4. 3.4 Thermal Images
    5. 3.5 Bode Plots
    6. 3.6 Load Regulation

1.1 Voltage and Current Requirements

Table 1-1 Voltage and Current Requirements
Parameter Specifications
Input voltage range (Full rated power) 250 VDC–410 VDC
Extended input voltage range (50% Rated power) 100 VDC–410 VDC
12VSB and S12V maximum load current (combined) 3.7 A
P18V maximum load current (see Figure 1-1 for minimum load requirements on 12VSB and S12V) 400 mA
Worst-case 12VSB load current mismatch between 2 paralleled units (calculated) 30%
GUID-20230104-SS0I-TFJF-9WNQ-3HKFRJV9LPMR-low.png Figure 1-1 P18V Minimum Load Requirements