TIDT318 January   2023

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Thermal Images
    3. 2.3 Bode Plots
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Load Transients

3.2 Load Transients

Figure 3-2 and Figure 3-3 show load transient 1 at 14 VIN. Load transient 1 shows a step response for load step from 30 A to 60 A (Figure 3-2), followed by a load dump from 60 A to 30 A (Figure 3-3). Load change time is about 2 μs. The undershoot and overshoot for each is about 2% or 66 mV. In both images, the blue trace is VOUT and the green trace is IOUT, but 30-A static load is not shown.

GUID-20221208-SS0I-NQQW-RJR2-SJMCMNVHKPQT-low.png Figure 3-2 Load Transient 1, Load Step
GUID-20221208-SS0I-45ST-MMPM-QLB5PPBRXKXH-low.png Figure 3-3 Load Transient 1, Load Dump

Figure 3-4 shows the load transient at 32 VIN. The load step response is for a load step from 0.8 A to 30.8 A, followed by load dump back to 0.8 A. The load change time is about 2 μs. Undershoot and overshoot are each about 60 mV.

GUID-20221208-SS0I-6MGS-4GZF-N1BB0HKSXQFD-low.png Figure 3-4 Load Transient 2