SLUAAH0 February   2022 UCC14130-Q1 , UCC14131-Q1 , UCC14140-Q1 , UCC14141-Q1 , UCC14240-Q1 , UCC14241-Q1 , UCC14340-Q1 , UCC14341-Q1 , UCC15240-Q1 , UCC15241-Q1

 

  1.   Trademarks
  2. 1 Introduction
    1. 1.1 Pin Configuration and Functions
  3. 2 Three-Phase Traction Inverter
  4. 3 Gate Drive Bias Requirements
    1. 3.1 Gate Drive Bias Architectures
    2. 3.2 IGBT vs. SiC
    3. 3.3 Determining Required Bias Supply Power
    4. 3.4 Input Voltage Requirements
    5. 3.5 Output Voltage Requirements
  5. 4 Single Positive Isolated Output Voltage
  6. 5 Dual Positive and Negative Output Voltages
  7. 6 Dual Positive Output Voltages
  8. 7 Capacitor Selection
  9. 8 RLIM Current Limit Resistor
    1. 8.1 RLIM Functional Description
    2. 8.2 RLIM Dual Output Configuration
      1. 8.2.1 CVEE Above Nominal Value CVDD Below Nominal Value
      2. 8.2.2 CVEE Below Nominal Value CVDD Above Nominal Value
      3. 8.2.3 Gate Driver Quiescent Current: IQ_VEE > IQ_VDD
      4. 8.2.4 Gate Driver Quiescent Current: IQ_VEE < IQ_VDD
      5. 8.2.5 CVEE Above Nominal Value CVDD Below Nominal Value: IQ_VEE > IQ_VDD
      6. 8.2.6 CVEE Below Nominal Value CVDD Above Nominal Value: IQ_VEE < IQ_VDD
    3. 8.3 RLIM Single Output Configuration
  10. 9 UCC14240-Q1 Excel Design Calculator Tool
  11. 10Thermal Considerations
    1. 10.1 Thermal Resistance
    2. 10.2 Junction-to-Top Thermal Characterization Parameter
    3. 10.3 Thermal Measurement and TJ Calculation Example
  12. 11Enable (ENA) and Power Good (/PG)
  13. 12PCB Layout Considerations
  14. 13Reference Design Example
  15. 14Summary
  16. 15References

13 Reference Design Example

The PMP22817A reference design solution operates from a nominal 12-V input and includes a SEPIC pre-regulator, UCC14240-Q1 isolated bias converter and UCC5870-Q1 30-A Isolated IGBT/SiC MOSFET Gate Driver with Advanced Protection Features for Automotive Applications .


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Figure 13-1 Single Channel SiC/IGBT Gate Drive Solution

The partitions outlined in Figure 13-1 are defined as:

  1. LM5156-Q1: 12-V (6 V<12 V<42 V) to 24-V SEPIC pre-regulator
  2. UCC14240-Q1: 24-V to +15-V, -5 V isolated bias supply
  3. UCC5870-Q1: 30-A isolated gate driver for IGBT/SiC (plus digital interface)
  4. Plated through-holes can accommodate 3-pin, TO-220 or 4-pin kelvin discrete IGBT/SiC packages or attached flying leads to drive IGBT/SiC modules

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Figure 13-2 LM5156-Q1, 12-V to 24-V SEPIC Pre-regulator

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Figure 13-3 UCC14240-Q1, 24-V to +15-V, -5-V Isolated Bias Supply

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Figure 13-4 UCC5870-Q1, 30-A, Isolated IGBT/SiC Gate Driver

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Figure 13-5 PMP22817A Steady-state Switching