SBAA586 October   2023 AMC23C11 , UCC23513

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2System Challenge on Isolated Gate Drivers With Integrated DESAT
  6. 3System Approach With UCC23513 and AMC23C11
    1. 3.1 System Overview and Key Specification
    2. 3.2 Schematic Design
      1. 3.2.1 Circuit Schematic
      2. 3.2.2 Configure VCE(DESAT) Threshold and DESAT Bias Current
      3. 3.2.3 DESAT Blanking Time
      4. 3.2.4 DESAT Deglitch Filter
    3. 3.3 Reference PCB Layout
  7. 4Simulation and Test Results
    1. 4.1 Simulation Circuit and Results
      1. 4.1.1 Simulation Circuit
      2. 4.1.2 Simulation Results
    2. 4.2 Test Results With 3-Phase IGBT Inverter
      1. 4.2.1 Brake IGBT Test
      2. 4.2.2 Test Results on a 3-Phase Inverter With Phase to Phase Short
  8. 5Summary
  9. 6References
  10. 7Revision History

4.1 Simulation Circuit and Results

Simulations have been made for the circuit to drive a low side IGBT of an active brake circuit in PSpice™ for TI. Figure 4-1 shows the schematic for the simulation.

The simulation uses an AMC23C14's PSpice™ simulation model as the model of AMC23C11 is yet unavailable on ti.com. For the DESAT implementation discussed in this application note, the circuitry connected to the OUT2 (pin7) in the schematic can be ignored, and the AMC23C14 shows the same behavior as the AMC23C11 with the LATCH input (pin7) tied to low.