SLVSD14A June   2017  – June  2020 DRV10983-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Application Schematic
  4. 4 Revision History
  5. 5 Description (Continued)
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Regulators
        1. 8.3.1.1 Step-Down Regulator
        2. 8.3.1.2 3.3-V and 1.8-V LDO
      2. 8.3.2 Protection Circuits
        1. 8.3.2.1 Thermal Shutdown
        2. 8.3.2.2 Undervoltage Lockout (UVLO)
        3. 8.3.2.3 Overcurrent Protection
        4. 8.3.2.4 Lock
      3. 8.3.3 Motor Speed Control
      4. 8.3.4 Load Dump Handling
      5. 8.3.5 Sleep or Standby Condition
        1. 8.3.5.1 Required Sequence to Enter Sleep Mode
          1. 8.3.5.1.1 Option 1
          2. 8.3.5.1.2 Option 2
      6. 8.3.6 EEPROM Access
    4. 8.4 Device Functional Modes
      1. 8.4.1  Motor Parameters
        1. 8.4.1.1 Motor Phase Resistance
        2. 8.4.1.2 BEMF Constant
      2. 8.4.2  Starting the Motor Under Different Initial Conditions
        1. 8.4.2.1 Case 1 – Motor is Stationary
        2. 8.4.2.2 Case 2 – Motor is Spinning in the Forward Direction
        3. 8.4.2.3 Case 3 – Motor is Spinning in the Reverse Direction
      3. 8.4.3  Motor Start Sequence
        1. 8.4.3.1 Initial Speed Detect
        2. 8.4.3.2 Motor Resynchronization
        3. 8.4.3.3 Reverse Drive
        4. 8.4.3.4 Motor Brake
        5. 8.4.3.5 Motor Initialization
          1. 8.4.3.5.1 Align
          2. 8.4.3.5.2 Initial Position Detect (IPD)
            1. 8.4.3.5.2.1 IPD Operation
            2. 8.4.3.5.2.2 IPD Release Mode
            3. 8.4.3.5.2.3 IPD Advance Angle
          3. 8.4.3.5.3 Motor Start
        6. 8.4.3.6 Start-Up Timing
      4. 8.4.4  Align Current
      5. 8.4.5  Start-Up Current Setting
        1. 8.4.5.1 Start-Up Current Ramp-Up
      6. 8.4.6  Closed Loop
        1. 8.4.6.1 Half-Cycle Control and Full-Cycle Control
        2. 8.4.6.2 Analog-Mode Speed Control
        3. 8.4.6.3 Digital PWM-Input-Mode Speed Control
        4. 8.4.6.4 I2C-Mode Speed Control
        5. 8.4.6.5 Closed-Loop Accelerate
        6. 8.4.6.6 Control Coefficient
        7. 8.4.6.7 Commutation Control Advance Angle
      7. 8.4.7  Current Limit
        1. 8.4.7.1 Acceleration Current Limit
      8. 8.4.8  Lock Detect and Fault Handling
        1. 8.4.8.1 Lock0: Lock-Detection Current Limit Triggered
        2. 8.4.8.2 Lock1: Abnormal Speed
        3. 8.4.8.3 Lock2: Abnormal Kt
        4. 8.4.8.4 Lock3 (Fault3): No-Motor Fault
        5. 8.4.8.5 Lock4: Open-Loop Motor-Stuck Lock
        6. 8.4.8.6 Lock5: Closed Loop Motor Stuck Lock
      9. 8.4.9  Anti Voltage Suppression Function
        1. 8.4.9.1 Mechanical AVS Function
        2. 8.4.9.2 Inductive AVS Function
      10. 8.4.10 PWM Output
      11. 8.4.11 FG Customized Configuration
        1. 8.4.11.1 FG Output Frequency
        2. 8.4.11.2 FG Open Loop and Lock Behavior
      12. 8.4.12 Diagnostics and Visibility
        1. 8.4.12.1 Motor-Status Readback
        2. 8.4.12.2 Motor-Speed Readback
        3. 8.4.12.3 Motor Electrical-Period Readback
        4. 8.4.12.4 BEMF Constant Read Back
        5. 8.4.12.5 Motor Estimated Position by IPD
        6. 8.4.12.6 Supply-Voltage Readback
        7. 8.4.12.7 Speed-Command Readback
        8. 8.4.12.8 Speed-Command Buffer Readback
        9. 8.4.12.9 Fault Diagnostics
    5. 8.5 Register Maps
      1. 8.5.1 I2C Serial Interface
      2. 8.5.2 Register Map
      3. 8.5.3 Register Descriptions
        1. 8.5.3.1  FaultReg Register (address = 0x00) [reset = 0x00]
          1. Table 11. FaultReg Register Field Descriptions
        2. 8.5.3.2  MotorSpeed Register (address = 0x01) [reset = 0x00]
          1. Table 12. MotorSpeed Register Field Descriptions
        3. 8.5.3.3  MotorPeriod Register (address = 0x02) [reset = 0x00]
          1. Table 13. MotorPeriod Register Field Descriptions
        4. 8.5.3.4  MotorKt Register (address = 0x03) [reset = 0x00]
          1. Table 14. MotorKt Register Field Descriptions
        5. 8.5.3.5  MotorCurrent Register (address = 0x04) [reset = 0x00]
          1. Table 15. MotorCurrent Register Field Descriptions
        6. 8.5.3.6  IPDPosition–SupplyVoltage Register (address = 0x05) [reset = 0x00]
          1. Table 16. IPDPosition–SupplyVoltage Register Field Descriptions
        7. 8.5.3.7  SpeedCmd–spdCmdBuffer Register (address = 0x06) [reset = 0x00]
          1. Table 17. SpeedCmd–spdCmdBuffer Register Field Descriptions
        8. 8.5.3.8  AnalogInLvl Register (address = 0x07) [reset = 0x00]
          1. Table 18. AnalogInLvl Register Field Descriptions
        9. 8.5.3.9  DeviceID–RevisionID Register (address = 0x08) [reset = 0x00]
          1. Table 19. DeviceID–RevisionID Register Field Descriptions
        10. 8.5.3.10 DeviceID–RevisionID Register (address = 0x08) [reset = 0x00]
          1. Table 20. DeviceID–RevisionID Register Field Descriptions
        11. 8.5.3.11 Unused Registers (addresses = 0x011 Through 0x2F)
        12. 8.5.3.12 SpeedCtrl Register (address = 0x30) [reset = 0x00]
          1. Table 21. SpeedCtrl Register Field Descriptions
        13. 8.5.3.13 EEPROM Programming1 Register (address = 0x31) [reset = 0x00]
          1. Table 22. EEPROM Programming1 Register Field Descriptions
        14. 8.5.3.14 EEPROM Programming2 Register (address = 0x32) [reset = 0x00]
          1. Table 23. EEPROM Programming2 Register Field Descriptions
        15. 8.5.3.15 EEPROM Programming3 Register (address = 0x33) [reset = 0x00]
          1. Table 24. EEPROM Programming3 Register Field Descriptions
        16. 8.5.3.16 EEPROM Programming4 Register (address = 0x34) [reset = 0x00]
          1. Table 25. EEPROM Programming4 Register Field Descriptions
        17. 8.5.3.17 EEPROM Programming5 Register (address = 0x35) [reset = 0x00]
          1. Table 26. EEPROM Programming5 Register Field Descriptions
        18. 8.5.3.18 EEPROM Programming6 Register (address = 0x36) [reset = 0x00]
          1. Table 27. EEPROM Programming6 Register Field Descriptions
        19. 8.5.3.19 Unused Registers (addresses = 0x37 Through 0x5F)
        20. 8.5.3.20 EECTRL Register (address = 0x60) [reset = 0x00]
          1. Table 28. EECTRL Register Field Descriptions
        21. 8.5.3.21 Unused Registers (addresses = 0x61 Through 0x8F)
        22. 8.5.3.22 CONFIG1 Register (address = 0x90) [reset = 0x00]
          1. Table 29. CONFIG1 Register Field Descriptions
        23. 8.5.3.23 CONFIG2 Register (address = 0x91) [reset = 0x00]
          1. Table 30. CONFIG2 Register Field Descriptions
        24. 8.5.3.24 CONFIG3 Register (address = 0x92) [reset = 0x00]
          1. Table 31. CONFIG3 Register Field Descriptions
        25. 8.5.3.25 CONFIG4 Register (address = 0x93) [reset = 0x00]
          1. Table 32. CONFIG4 Register Field Descriptions
        26. 8.5.3.26 CONFIG5 Register (address = 0x94) [reset = 0x00]
          1. Table 33. CONFIG5 Register Field Descriptions
        27. 8.5.3.27 CONFIG6 Register (address = 0x95) [reset = 0x00]
          1. Table 34. CONFIG6 Register Field Descriptions
        28. 8.5.3.28 CONFIG7 Register (address = 0x96) [reset = 0x00]
          1. Table 35. CONFIG7 Register Field Descriptions
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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8.4.3 Motor Start Sequence

Figure 17 shows the motor-start sequence implemented in the DRV10983-Q1 device.

DRV10983-Q1 motor_startup_flow_LVSCP2.gifFigure 17. Motor Starting-Up Flow
    Power-On StateThis is the initial power-on state of the motor start sequencer (MSS). The MSS starts in this state on initial power-up or whenever the DRV10983-Q1 device comes out of either standby or sleep mode.
    ISDen JudgmentAfter power-on, the DRV10983-Q1 MSS enters the ISDen judgment where it checks to see if the initial speed detect (ISD) function is enabled (ISDen = 1). If ISD is disabled, the MSS proceeds directly to the BrkEn Judgment. If ISD is enabled, the motor start sequence advances to the ISD state.
    Speed<ISDThr JudgmentIf the motor speed is lower than the threshold defined by ISDThr[1:0], then the motor is considered to be stationary and the MSS proceeds to the BrkEn judgment. If the speed is greater than the threshold defined by ISDThr[1:0], the start sequence proceeds to the Forward judgment.
    Forward Judgment The MSS determines whether the motor is spinning in the forward or the reverse direction. If the motor is spinning in the forward direction, the DRV10983-Q1 device executes the resynchronization (see Motor Resynchronization) process by transitioning directly into the ClosedLoop state. If the motor is spinning in the reverse direction, the MSS proceeds to the Speed>RvsDrThr.
    Speed>RvsDrThr JudgmentThe motor start sequencer checks to see if the reverse speed is greater than the threshold defined by RvsDrThr[1:0]. If it is, then the MSS returns to the ISD state to allow the motor to decelerate. This prevents the DRV10983-Q1 device from attempting to reverse drive or brake a motor that is spinning too quickly. If the reverse speed of the motor is less than the threshold defined by RvsDrThr[1:0], then the MSS advances to the RvsDrEn judgment.
    RvsDrEn JudgmentThe MSS checks to see if the reverse drive function is enabled (RvsDrEn = 1). If it is, the MSS transitions into the RvsDr state. If the reverse drive function is not enabled, the MSS advances to the BrkEn judgment.
    RvsDr StateThe DRV10983-Q1 device drives the motor in the forward direction to force it to rapidly decelerate (see Reverse Drive). When it reaches zero velocity, the MSS transitions to the Accelerate state.
    BrkEn JudgmentThe MSS checks to determine whether the brake function is enabled (BrkDoneThr[2:0] ≠ 000). If the brake function is enabled, the MSS advances to the brake state.
    Brake StateThe device performs the brake function (see Motor Brake).
    Time>BrkDoneThr JudgmentThe MSS applies brake for a time configured by BRKDoneThr[2:0]. After brake state, the MSS advances to the IPDEn judgment.
    IPDEn JudgmentThe MSS checks to see if IPD has been enabled (IPDCurrThr[3:0] ≠ 0000). If the IPD is enabled, the MSS transitions to the IPD state. Otherwise, it transitions to the align state.
    Align StateThe DRV10983-Q1 device performs the align function (see Align). After the align completes, the MSS transitions to the Accelerate state.
    IPD StateThe DRV10983-Q1 device performs the IPD function. The IPD function is described in Initial Position Detect (IPD). After the IPD completes, the MSS transitions to the accelerate state.
    Accelerate StateThe DRV10983-Q1 device accelerates the motor according to the settings of StAccel and StAccel2. After applying the accelerate settings, the MSS advances to the Speed>Op2ClsThr judgment.
    Speed>Op2ClsThr JudgmentThe motor accelerates until the drive rate exceeds the threshold configured by the Op2ClsThr[4:0] settings. When this threshold is reached, the DRV10983-Q1 device enters into the ClosedLoop state.
    ClosedLoop StateIn this state, the DRV10983-Q1 device drives the motor based on feedback from the commutation control algorithm.
    DIR Pin Change JudgmentIf the DIR pin is changed during any of above states, DRV10983-Q1 device stops driving the motor and restarts from the beginning.