TIDUF23 may   2023

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
    1. 1.1 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1  UCC5880-Q1
      2. 2.3.2  AM2634-Q1
      3. 2.3.3  TMS320F280039C-Q1
      4. 2.3.4  UCC14240-Q1
      5. 2.3.5  UCC12051-Q1
      6. 2.3.6  AMC3330-Q1
      7. 2.3.7  TCAN1462-Q1
      8. 2.3.8  ISO1042-Q1
      9. 2.3.9  ALM2403-Q1
      10. 2.3.10 LM5158-Q1
      11. 2.3.11 LM74202-Q1
    4. 2.4 System Design Theory
      1. 2.4.1 Microcontrollers
        1. 2.4.1.1 Microcontroller – C2000™
        2. 2.4.1.2 Microcontroller – Sitara™
      2. 2.4.2 Isolated Bias Supply
      3. 2.4.3 Power Tree
        1. 2.4.3.1 Introduction
        2. 2.4.3.2 Power Tree Block Diagram
        3. 2.4.3.3 12 V Distribution and Control
        4. 2.4.3.4 Gate Drive Supply
        5. 2.4.3.5 5-Volt Supply Domain
        6. 2.4.3.6 Current and Position Sensing Power
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Hardware Board Overview
        1. 3.1.1.1 Control Board
        2. 3.1.1.2 MCU Control Card – Sitara™
        3. 3.1.1.3 MCU Control Card – C2000™
        4. 3.1.1.4 Gate Driver and Bias Supply Board
        5. 3.1.1.5 DC Bus Voltage Sense
        6. 3.1.1.6 SiC Power Module
          1. 3.1.1.6.1 XM3 SiC Power Module
          2. 3.1.1.6.2 Module Power Terminals
          3. 3.1.1.6.3 Module Signal Terminals
          4. 3.1.1.6.4 Integrated NTC Temperature Sensor
        7. 3.1.1.7 Laminated Busing and DC Bus Capacitors
          1. 3.1.1.7.1 Discharge PCB
    2. 3.2 Test Setup
      1. 3.2.1 Software Setup
        1. 3.2.1.1 Code Composer Studio Project
        2. 3.2.1.2 Software Structure
    3. 3.3 Test Procedure
      1. 3.3.1 Project Setup
      2. 3.3.2 Running the Application
    4. 3.4 Test Results
      1. 3.4.1 Isolated Bias Supply
      2. 3.4.2 Isolated Gate Driver
      3. 3.4.3 Inverter System
  9. 4General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  10. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
      3. 5.1.3 PCB Layout Recommendations
        1. 5.1.3.1 Layout Prints
      4. 5.1.4 Altium Project
      5. 5.1.5 Gerber Files
      6. 5.1.6 Assembly Drawings
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  11. 6Terminology

2.4.3.3 12 V Distribution and Control

The 12-volt domain is distributed into three separate rails.

Table 2-1 12 V Distribution and Control
Rail Regulator Load Maximum current
+12V_H LM5158-Q1 based SEPIC High-side 24-volt domain 0.4 A
TPS7B6933-Q1 LDO High-side 3.3-volt logic 0.02 A
+12V_L LM5158-Q1 based SEPIC Low-side 24-volt domain 0.4 A
TPS7B6933-Q1 LDO Low-side 3.3-volt logic 0.02 A
TLV733P-Q1 LDO High-voltage sensing and current sensing signal conditioning 0.05 A
TLV733P-Q1 LDO Digital interfaces and resolver front-end 0.02 A
LMR50410-Q1 simple switcher® 5-volt supply domain 0.81 A
+12V_LEM LM5157-Q1 based SEPIC LEM current sensor modules 1.5 A
Resolver excitation

These rails are separated and protected with LM74202-Q1 ideal diodes.

The primary function of LM74202-1 is to provide overvoltage (OV) and short circuit protection. For debugging or experimental purposes the MCU can control the LM74202-Q1 with a logic signal (Power_EN_LoadSW) when powered from different power source for example through programming USB cable.