TIDT272 April   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 Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Load Regulation
      1. 2.3.1 Primary Output
      2. 2.3.2 Secondary Outputs
        1. 2.3.2.1 Positive Outputs
        2. 2.3.2.2 Negative Outputs
    4. 2.4 Line Regulation
      1. 2.4.1 Primary Output
      2. 2.4.2 Secondary Outputs
        1. 2.4.2.1 Positive Outputs
        2. 2.4.2.2 Negative Outputs
    5. 2.5 Thermal Images
    6. 2.6 Bode Plots
      1. 2.6.1 5.5-V Input Voltage
      2. 2.6.2 12-V Input Voltage
  6. 3Waveforms
    1. 3.1 Switching
      1. 3.1.1 Q1 Drain to GND
      2. 3.1.2 Q1 Gate to GND
      3. 3.1.3 Diode D12
      4. 3.1.4 Diode D9
    2. 3.2 Output Voltage Ripple
      1. 3.2.1 Primary 10 V (Auxiliary)
      2. 3.2.2 Secondary +15 V
      3. 3.2.3 Secondary –5 V
    3. 3.3 Input Voltage Ripple
    4. 3.4 Start-Up Sequence
    5. 3.5 Shutdown Sequence

3.2.1 Primary 10 V (Auxiliary)

GUID-20220324-SS0I-8HPX-X3Z4-7BFRTFRRG0ZZ-low.jpg

20 mV / div

2 µs / div

20 MHz bandwidth
Figure 3-5 +10 Vaux Output