SLLSFZ8 November   2025 MCF8329HS-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings Auto
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Characteristics of the SDA and SCL bus for Standard and Fast mode
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Three Phase BLDC Gate Drivers
      2. 7.3.2  Gate Drive Architecture
        1. 7.3.2.1 Dead time and Cross Conduction Prevention
      3. 7.3.3  AVDD Linear Voltage Regulator
      4. 7.3.4  Low-Side Current Sense Amplifier
      5. 7.3.5  Device Interface Modes
        1. 7.3.5.1 Interface - Control and Monitoring
        2. 7.3.5.2 I2C Interface
      6. 7.3.6  Motor Control Input Options
        1. 7.3.6.1 Analog-Mode Motor Control
        2. 7.3.6.2 PWM-Mode Motor Control
        3. 7.3.6.3 Frequency-Mode Motor Control
        4. 7.3.6.4 I2C based Motor Control
        5. 7.3.6.5 Input Control Signal Profiles
          1. 7.3.6.5.1 Linear Control Profiles
          2. 7.3.6.5.2 Staircase Control Profiles
          3. 7.3.6.5.3 Forward-Reverse Profiles
          4. 7.3.6.5.4 Multi-Reference Mode Operation
          5. 7.3.6.5.5 Input Reference Transfer Function without Profiler
      7. 7.3.7  Bootstrap Capacitor Initial Charging
      8. 7.3.8  Starting the Motor Under Different Initial Conditions
        1. 7.3.8.1 Case 1 – Motor is Stationary
        2. 7.3.8.2 Case 2 – Motor is Spinning in the Forward Direction
        3. 7.3.8.3 Case 3 – Motor is Spinning in the Reverse Direction
      9. 7.3.9  Motor Start Sequence (MSS)
        1. 7.3.9.1 Initial Speed Detect (ISD)
        2. 7.3.9.2 Motor Resynchronization
        3. 7.3.9.3 Reverse Drive
          1. 7.3.9.3.1 Reverse Drive Tuning
        4. 7.3.9.4 Motor Start-up
          1. 7.3.9.4.1 Align
          2. 7.3.9.4.2 Double Align
          3. 7.3.9.4.3 Initial Position Detection (IPD)
            1. 7.3.9.4.3.1 IPD Operation
            2. 7.3.9.4.3.2 IPD Release
            3. 7.3.9.4.3.3 IPD Advance Angle
          4. 7.3.9.4.4 Slow First Cycle Startup
          5. 7.3.9.4.5 Open Loop
          6. 7.3.9.4.6 Transition from Open to Closed Loop
      10. 7.3.10 Closed Loop Operation
        1. 7.3.10.1 Closed loop accelerate
        2. 7.3.10.2 Speed PI Control
        3. 7.3.10.3 Current PI Control
        4. 7.3.10.4 Overmodulation
        5. 7.3.10.5 Power Loop
        6. 7.3.10.6 Modulation Index Control
        7. 7.3.10.7 Motor Speed Limit
        8. 7.3.10.8 Input DC Power Limit
      11. 7.3.11 Maximum Torque Per Ampere (MTPA) Control
      12. 7.3.12 Flux Weakening Control
      13. 7.3.13 Motor Parameters
        1. 7.3.13.1 Motor Resistance
        2. 7.3.13.2 Motor Inductance
        3. 7.3.13.3 Motor Back-EMF constant
      14. 7.3.14 Motor Parameter Extraction Tool (MPET)
      15. 7.3.15 Single Hall Sensor Operation
      16. 7.3.16 Anti-Voltage Surge (AVS)
      17. 7.3.17 Active Braking
      18. 7.3.18 Output PWM Switching Frequency
      19. 7.3.19 Dead Time Compensation
      20. 7.3.20 Voltage Sense Scaling
      21. 7.3.21 Motor Stop Options
        1. 7.3.21.1 Coast (Hi-Z) Mode
        2. 7.3.21.2 Recirculation Mode
        3. 7.3.21.3 Low-Side Braking
        4. 7.3.21.4 Active Spin-Down
      22. 7.3.22 FG Configuration
        1. 7.3.22.1 FG Output Frequency
        2. 7.3.22.2 FG in Open-Loop
        3. 7.3.22.3 FG During Motor Stop
        4. 7.3.22.4 FG Behavior During Fault
      23. 7.3.23 Protections
        1. 7.3.23.1  PVDD Supply Undervoltage Lockout (PVDD_UV)
        2. 7.3.23.2  AVDD Power on Reset (AVDD_POR)
        3. 7.3.23.3  GVDD Undervoltage Lockout (GVDD_UV)
        4. 7.3.23.4  BST Undervoltage Lockout (BST_UV)
        5. 7.3.23.5  MOSFET VDS Overcurrent Protection (VDS_OCP)
        6. 7.3.23.6  VSENSE Overcurrent Protection (SEN_OCP)
        7. 7.3.23.7  Thermal Shutdown (OTSD)
        8. 7.3.23.8  Hardware Lock Detection Current Limit (HW_LOCK_ILIMIT)
          1. 7.3.23.8.1 HW_LOCK_ILIMIT Latched Shutdown (HW_LOCK_ILIMIT_MODE = 00xb or 010b)
          2. 7.3.23.8.2 HW_LOCK_ILIMIT Automatic recovery (HW_LOCK_ILIMIT_MODE = 011b or 10xb)
          3. 7.3.23.8.3 HW_LOCK_ILIMIT Report Only (HW_LOCK_ILIMIT_MODE = 110b)
          4. 7.3.23.8.4 HW_LOCK_ILIMIT Disabled (HW_LOCK_ILIMIT_MODE = 111b)
        9. 7.3.23.9  Lock Detection Current Limit (LOCK_ILIMIT)
          1. 7.3.23.9.1 LOCK_ILIMIT Latched Shutdown (LOCK_ILIMIT_MODE = 00xb or 010b)
          2. 7.3.23.9.2 LOCK_ILIMIT Automatic Recovery (LOCK_ILIMIT_MODE = 011b or 10xb)
          3. 7.3.23.9.3 LOCK_ILIMIT Report Only (LOCK_ILIMIT_MODE = 110b)
          4. 7.3.23.9.4 LOCK_ILIMIT Disabled (LOCK_ILIMIT_MODE = 111b)
        10. 7.3.23.10 Motor Lock (MTR_LCK)
          1. 7.3.23.10.1 MTR_LCK Latched Shutdown (MTR_LCK_MODE = 00xb or 010b)
          2. 7.3.23.10.2 MTR_LCK Automatic Recovery (MTR_LCK_MODE = 011b or 10xb)
          3. 7.3.23.10.3 MTR_LCK Report Only (MTR_LCK_MODE = 110b)
          4. 7.3.23.10.4 MTR_LCK Disabled (MTR_LCK_MODE = 111b)
        11. 7.3.23.11 Motor Lock Detection
          1. 7.3.23.11.1 Lock 1: Abnormal Speed (ABN_SPEED)
          2. 7.3.23.11.2 Lock 2: Abnormal BEMF (ABN_BEMF)
          3. 7.3.23.11.3 Lock3: No-Motor Fault (NO_MTR)
        12. 7.3.23.12 MPET Faults
        13. 7.3.23.13 IPD Faults
        14. 7.3.23.14 Dry Run Detection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Functional Modes
        1. 7.4.1.1 Sleep Mode
        2. 7.4.1.2 Standby Mode
        3. 7.4.1.3 Fault Reset (CLR_FLT)
    5. 7.5 External Interface
      1. 7.5.1 DRVOFF - Gate Driver Shutdown Functionality
      2. 7.5.2 Oscillator Source
      3. 7.5.3 External Watchdog with MCU Reset
    6. 7.6 EEPROM access and I2C interface
      1. 7.6.1 EEPROM Access
        1. 7.6.1.1 EEPROM Write
        2. 7.6.1.2 EEPROM Read
        3. 7.6.1.3 EEPROM Security
      2. 7.6.2 I2C Serial Interface
        1. 7.6.2.1 I2C Data Word
        2. 7.6.2.2 I2C Write Operation
        3. 7.6.2.3 I2C Read Operation
        4. 7.6.2.4 Examples of I2C Communication Protocol Packets
        5. 7.6.2.5 Internal Buffers
        6. 7.6.2.6 CRC Byte Calculation
  9. 8 EEPROM (Non-Volatile) Register Map
    1. 8.1 Algorithm_Configuration Registers
    2. 8.2 Fault_Configuration Registers
    3. 8.3 Hardware_Configuration Registers
    4. 8.4 Internal_Algorithm_Configuration Registers
  10. 9 RAM (Volatile) Register Map
    1. 9.1 Fault_Status Registers
    2. 9.2 System_Status Registers
    3. 9.3 Algorithm_Control Registers
    4. 9.4 Device_Control Registers
    5. 9.5 Algorithm_Variables Registers
  11. 10Typical Applications
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1.      Detailed Design Procedure
      2.      Bootstrap Capacitor and GVDD Capacitor Selection
      3.      Gate Drive Current
      4.      Gate Resistor Selection
      5.      System Considerations in High Power Designs
      6.      Capacitor Voltage Ratings
      7.      External Power Stage Components
    3. 10.3 Power Supply Recommendations
      1. 10.3.1 Bulk Capacitance
    4. 10.4 Layout
      1. 10.4.1 Layout Guidelines
      2. 10.4.2 Layout Example
      3. 10.4.3 Thermal Considerations
        1. 10.4.3.1 Power Dissipation
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  13. 12Mechanical, Packaging, and Orderable Information

7.3.13.3 Motor Back-EMF constant

The back-EMF constant describes the motor phase-to-neutral back-EMF voltage as a function of the motor speed. For a wye-connected motor, the motor BEMF constant refers to the BEMF as a function of time from the phase output to the center tap, KtPH_N (denoted as KtPH_N in Table 7-4). For a delta-connected motor, the motor BEMF constant refers to the equivalent phase to center tap in the wye configuration in Table 7-4.

MCF8329HS-Q1 Motor back-EMF constantFigure 7-37 Motor back-EMF constant

For both the delta-connected motor and the wye-connected motor, the easy way to get the equivalent KtPH_N is to measure the peak value of BEMF on scope for one electrical cycle between two phase terminals (EPH), and then multiply by time duration of one electrical cycle and in order to convert from phase-to-phase to phase-to-neutral divide by sqrt(3) as shown in Equation 12 .

Equation 12. KtPH_N= 13×EPH×tE

Configure the motor BEMF constant (KtPH_N) to a nearest value from Table 7-4.

Table 7-4 Motor BEMF Constant Look-Up Table
MOTOR_BEMF_CONST (HEX) KtPH_N (mV/Hz) MOTOR_BEMF_CONST (HEX) KtPH_N (mV/Hz) MOTOR_BEMF_CONST (HEX) KtPH_N (mV/Hz) MOTOR_BEMF_CONST (HEX) KtPH_N (mV/Hz)
0x00 Self Measurement (see Section 7.3.14) 0x40 1.7 0x80 17 0xC0 170
0x01 0.1 0x41 1.75 0x81 17.5 0xC1 175
0x02 0.11 0x42 1.8 0x82 18 0xC2 180
0x03 0.12 0x43 1.85 0x83 18.5 0xC3 185
0x04 0.13 0x44 1.9 0x84 19 0xC4 190
0x05 0.14 0x45 1.95 0x85 19.5 0xC5 195
0x06 0.15 0x46 2 0x86 20 0xC6 200
0x07 0.16 0x47 2.1 0x87 21 0xC7 210
0x08 0.17 0x48 2.2 0x88 22 0xC8 220
0x09 0.18 0x49 2.3 0x89 23 0xC9 230
0x0A 0.19 0x4A 2.4 0x8A 24 0xCA 240
0x0B 0.2 0x4B 2.5 0x8B 25 0xCB 250
0x0C 0.21 0x4C 2.6 0x8C 26 0xCC 260
0x0D 0.22 0x4D 2.7 0x8D 27 0xCD 270
0x0E 0.23 0x4E 2.8 0x8E 28 0xCE 280
0x0F 0.24 0x4F 2.9 0x8F 29 0xCF 290
0x10 0.25 0x50 3 0x90 30 0xD0 300
0x11 0.26 0x51 3.1 0x91 31 0xD1 310
0x12 0.27 0x52 3.2 0x92 32 0xD2 320
0x13 0.28 0x53 3.3 0x93 33 0xD3 330
0x14 0.29 0x54 3.4 0x94 34 0xD4 340
0x15 0.3 0x55 3.5 0x95 35 0xD5 350
0x16 0.32 0x56 3.6 0x96 36 0xD6 360
0x17 0.34 0x57 3.7 0x97 37 0xD7 370
0x18 0.36 0x58 3.8 0x98 38 0xD8 380
0x19 0.38 0x59 3.9 0x99 39 0xD9 390
0x1A 0.4 0x5A 4 0x9A 40 0xDA 400
0x1B 0.42 0x5B 4.2 0x9B 42 0xDB 425
0x1C 0.44 0x5C 4.4 0x9C 44 0xDC 450
0x1D 0.46 0x5D 4.6 0x9D 46 0xDD 475
0x1E 0.48 0x5E 4.8 0x9E 48 0xDE 500
0x1F 0.5 0x5F 5 0x9F 50 0xDF 525
0x20 0.52 0x60 5.2 0xA0 52 0xE0 550
0x21 0.54 0x61 5.4 0xA1 54 0xE1 575
0x22 0.56 0x62 5.6 0xA2 56 0xE2 600
0x23 0.58 0x63 5.8 0xA3 58 0xE3 625
0x24 0.6 0x64 6 0xA4 60 0xE4 650
0x25 0.62 0x65 6.2 0xA5 62 0xE5 700
0x26 0.64 0x66 6.4 0xA6 64 0xE6 750
0x27 0.66 0x67 6.6 0xA7 66 0xE7 800
0x28 0.68 0x68 6.8 0xA8 68 0xE8 850
0x29 0.7 0x69 7 0xA9 70 0xE9 900
0x2A 0.72 0x6A 7.2 0xAA 72 0xEA 950
0x2B 0.74 0x6B 7.4 0xAB 74 0xEB 1000
0x2C 0.76 0x6C 7.6 0xAC 76 0xEC 1050
0x2D 0.78 0x6D 7.8 0xAD 78 0xED 1100
0x2E 0.8 0x6E 8 0xAE 80 0xEE 1150
0x2F 0.85 0x6F 8.5 0xAF 85 0xEF 1200
0x30 0.9 0x70 9 0xB0 90 0xF0 1250
0x31 0.95 0x71 9.5 0xB1 95 0xF1 1300
0x32 1 0x72 10 0xB2 100 0xF2 1350
0x33 1.05 0x73 10.5 0xB3 105 0xF3 1400
0x34 1.1 0x74 11 0xB4 110 0xF4 1450
0x35 1.15 0x75 11.5 0xB5 115 0xF5 1500
0x36 1.2 0x76 12 0xB6 120 0xF6 1550
0x37 1.25 0x77 12.5 0xB7 125 0xF7 1600
0x38 1.3 0x78 13 0xB8 130 0xF8 1650
0x39 1.35 0x79 13.5 0xB9 135 0xF9 1700
0x3A 1.4 0x7A 14 0xBA 140 0xFA 1750
0x3B 1.45 0x7B 14.5 0xBB 145 0xFB 1800
0x3C 1.5 0x7C 15 0xBC 150 0xFC 1850
0x3D 1.55 0x7D 15.5 0xBD 155 0xFD 1900
0x3E 1.6 0x7E 16 0xBE 160 0xFE 1950
0x3F 1.65 0x7F 16.5 0xBF 165 0xFF 2000