TIDT334 September   2023 UCD3138

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 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
  7. 2Testing and Results
    1. 2.1 Bode Plots
    2. 2.2 Thermal Images
  8. 3Waveforms
    1. 3.1 Load Transients
    2. 3.2 Output Voltage Ripple
    3. 3.3 Start-Up Sequence
    4. 3.4 Overcurrent Protection
    5. 3.5 Input Voltage Protection

3.4 Overcurrent Protection

When the load current is over 90 A, the power stage is shut down by the current sensing protection with a short period. Figure 3-34 shows the waveform. Channel 1 is VOUT, channel 2 is VIN, channel 3 is Ir, channel 4 is IO.

GUID-20230915-SS0I-H0LX-RV6S-0GCPPWN5NZJ6-low.pngFigure 3-20 Overcurrent Protection (90 A)

When the load current exceeds the internal comparator threshold, the power stage is shutdown by internal comparator protection with a faster speed. Figure 3-21 shows the waveform. Channel 1 is VOUT, channel 2 is VIN, channel 3 is Ir, channel 4 is IO.

GUID-20230915-SS0I-V1JZ-ZSGR-56FNWCXMV2VX-low.pngFigure 3-21 Shoot Protection (140 A)