TIDT286 June   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 Graph
    2. 2.2 Loss Graph
    3. 2.3 Load Regulation
    4. 2.4 Line Regulation
    5. 2.5 Thermal Images
      1. 2.5.1 0.5-A Output Current
      2. 2.5.2 1-A Output Current
      3. 2.5.3 1.5-A Output Current
      4. 2.5.4 2-A Output Current
      5. 2.5.5 Pulsed Ouput Current
    6. 2.6 Bode Plots
      1. 2.6.1 6-V Input Voltage
      2. 2.6.2 12-V Input Voltage
  6. 3Waveforms
    1. 3.1 Switching
      1. 3.1.1 Transistor Q1
        1. 3.1.1.1 Drain - Source
        2. 3.1.1.2 Gate - Source
      2. 3.1.2 Diode D3
    2. 3.2 Input Voltage Ripple
      1. 3.2.1 20-MHz Bandwidth
      2. 3.2.2 Full Bandwidth
    3. 3.3 Output Voltage Ripple
    4. 3.4 Load Transients
      1. 3.4.1 Switching Load From 1 A to 2 A
      2. 3.4.2 Switching Load From 0.2 A to 2 A
        1. 3.4.2.1 50% Duty Cycle
        2. 3.4.2.2 Low Duty Cycle (TON = 3 ms; TOFF = 30 ms)
    5. 3.5 Start-Up Sequence
    6. 3.6 Shutdown Sequence

3.4.2.1 50% Duty Cycle

In Figure 3-9, the output voltage waveform has a deviation of about 1% with bandwidth setting of 10 kHz.

GUID-20220524-SS0I-Z0LN-87ZN-FKCH8LHNDTFT-low.png

Ch1 ⇒ VOUT

50 mV / div (AC)

10-kHz bandwidth


                                
Ch2 ⇒
                                        IOUT

                                
1 A / div

                                
20-MHz
                                    bandwidth

                                

                                
1 ms / div

                            		
                        

                    

            

                
            Figure 3-9 Load Transient 0.2 A to 2 A
                    (50% Duty Cycle)