SLLU374 November   2024 MCF8329A

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Hardware Design and Setup
    1. 2.1 Board Design
      1. 2.1.1 External MOSFET Selection
      2. 2.1.2 Gate Resistor Selection
      3. 2.1.3 Bootstrap and GVDD Capacitor Selection
      4. 2.1.4 Current Shunt Resistor Selection
      5. 2.1.5 VREG MOSFET Selection
      6. 2.1.6 Additional External Power Stage Components
  6. 3Connecting to the GUI
  7. 4Spinning Into Closed Loop
    1. 4.1 Essential Configuration
      1. 4.1.1 Loading Recommended Default Values
      2. 4.1.2 Setting Base Current
      3. 4.1.3 Setting Current Limits
      4. 4.1.4 Setting Voltage Limits
      5. 4.1.5 Input the Motor's Phase Resistance and Inductance
      6. 4.1.6 Maximum Electrical Speed (Hz)
      7. 4.1.7 Run MPET to Identify Motor Parameters
        1. 4.1.7.1 Skipping MPET Measurements
    2. 4.2 Testing for Successful Startup Into Closed Loop
  8. 5Basic Controls
    1. 5.1 Speed Input Mode
    2. 5.2 Preventing Back Spin of Rotor During Startup
    3. 5.3 Faster Startup Timing
    4. 5.4 Improving Speed Regulation
    5. 5.5 Limiting and Regulating Supply Power
    6. 5.6 MTPA Tuning
    7. 5.7 Motor Studio Optimization Wizards
  9. 6Fault Handling
    1. 6.1 MPET BEMF FAULT [MPET_BEMF_FAULT]
    2. 6.2 Abnormal BEMF Fault [ABN_BEMF]
    3. 6.3 Lock Current Limit [LOCK_LIMIT]
    4. 6.4 Hardware Lock Current Limit [HW_LOCK_LIMIT]
    5. 6.5 No Motor Fault [NO_MTR]
    6. 6.6 Abnormal Speed [ABN_SPEED]

2.1.1 External MOSFET Selection

The MOSFETs for the external half bridge that can be supported by the MCF8329A can be determined by inputting the MOSFET gate charge, output PWM switching frequency, and PVDD voltage into the Max Qg MOSFET Calcualtor Tool available on ti.com.