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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.1 Overview

The DRV10983-Q1 device is a three-phase sensorless motor driver with integrated power MOSFETs that provides drive-current capability up to 2 A continuously. The device is specifically designed for low-noise, low-external-component-count motor-drive applications. The device is configurable through a simple I2C interface to accommodate different motor parameters and spin-up profiles for different customer applications.

A 180° sensorless control scheme provides continuous sinusoidal output voltages to the motor phases to enable ultra-quiet motor operation by keeping the electrically induced torque ripple small.

The DRV10983-Q1 device features extensive protection and fault-detection mechanisms to ensure reliable operation. Voltage surge protection prevents the input VCC capacitor from overcharging, which is typical during motor deceleration. The device provides overcurrent protection without the need for an external current-sense resistor. Rotor-lock detection is available through several methods. These methods can be configured with register settings to ensure reliable operation. The device provides additional protection for undervoltage lockout (UVLO) and for thermal shutdown.

The commutation control algorithm continuously measures the motor phase current and periodically measures the VCC supply voltage. The device uses this information for BEMF estimation, and the information is also provided through the I2C register interface for debug and diagnostic use in the system, if desired.

A buck step-down regulator efficiently steps down the supply voltage. The output of this regulator provides power for the internal circuits and can also be used to provide power for an external circuit such as a microcontroller. If providing power for an external circuit is not necessary (and to reduce system cost), configure the buck step-down regulator as a linear regulator by replacing the inductor with a resistor.

The DRV10983-Q1 device has a flexible interface, capable of supporting both analog and digital inputs. In addition to the I2C interface, the device has FG, DIR, and SPEED pins. SPEED is the speed command input pin. DIR is the direction control input pin. FG is the speed indicator output, which shows the frequency of the motor commutation.

EEPROM is integrated in the DRV10983-Q1 device as memory for the motor parameter and operation settings. EEPROM data transfers to the registers after power-on and exit from sleep mode.

The DRV10983-Q1 device can also operate in register mode. If the system includes a microcontroller communicating through the I2C interface, the device can dynamically update the motor parameters and operation settings by writing to the registers. In this configuration, the EEPROM data is bypassed by the register settings.