JAJSN65A October   2019  – October 2021 DRV10982-Q1

PRODUCTION DATA  

  1. 特長
  2. アプリケーション
  3. 概要
  4. Revision History
  5. 概要 (続き)
  6. Pin Configuration and Functions
  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. 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]
        2. 8.5.3.2  MotorSpeed Register (address = 0x01) [reset = 0x00]
        3. 8.5.3.3  MotorPeriod Register (address = 0x02) [reset = 0x00]
        4. 8.5.3.4  MotorKt Register (address = 0x03) [reset = 0x00]
        5. 8.5.3.5  MotorCurrent Register (address = 0x04) [reset = 0x00]
        6. 8.5.3.6  IPDPosition–SupplyVoltage Register (address = 0x05) [reset = 0x00]
        7. 8.5.3.7  SpeedCmd–spdCmdBuffer Register (address = 0x06) [reset = 0x00]
        8. 8.5.3.8  AnalogInLvl Register (address = 0x07) [reset = 0x00]
        9. 8.5.3.9  DeviceID–RevisionID Register (address = 0x08) [reset = 0x00]
        10. 8.5.3.10 DeviceID–RevisionID Register (address = 0x08) [reset = 0x00]
        11. 8.5.3.11 Unused Registers (addresses = 0x011 Through 0x2F)
        12. 8.5.3.12 SpeedCtrl Register (address = 0x30) [reset = 0x00]
        13. 8.5.3.13 EEPROM Programming1 Register (address = 0x31) [reset = 0x00]
        14. 8.5.3.14 EEPROM Programming2 Register (address = 0x32) [reset = 0x00]
        15. 8.5.3.15 EEPROM Programming3 Register (address = 0x33) [reset = 0x00]
        16. 8.5.3.16 EEPROM Programming4 Register (address = 0x34) [reset = 0x00]
        17. 8.5.3.17 EEPROM Programming5 Register (address = 0x35) [reset = 0x00]
        18. 8.5.3.18 EEPROM Programming6 Register (address = 0x36) [reset = 0x00]
        19. 8.5.3.19 Unused Registers (addresses = 0x37 Through 0x5F)
        20. 8.5.3.20 EECTRL Register (address = 0x60) [reset = 0x00]
        21. 8.5.3.21 Unused Registers (addresses = 0x61 Through 0x8F)
        22. 8.5.3.22 CONFIG1 Register (address = 0x90) [reset = 0x00]
        23. 8.5.3.23 CONFIG2 Register (address = 0x91) [reset = 0x00]
        24. 8.5.3.24 CONFIG3 Register (address = 0x92) [reset = 0x00]
        25. 8.5.3.25 CONFIG4 Register (address = 0x93) [reset = 0x00]
        26. 8.5.3.26 CONFIG5 Register (address = 0x94) [reset = 0x00]
        27. 8.5.3.27 CONFIG6 Register (address = 0x95) [reset = 0x00]
        28. 8.5.3.28 CONFIG7 Register (address = 0x96) [reset = 0x00]
  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 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Package Option Addendum
      1. 13.1.1 Packaging Information
      2. 13.1.2 Tape and Reel Information

パッケージ・オプション

メカニカル・データ(パッケージ|ピン)
サーマルパッド・メカニカル・データ
発注情報

Motor Phase Resistance

For a wye-connected motor, the motor phase resistance refers to the resistance from the phase output to the center tap, RPH_CT (denoted as RPH_CT in #SLVSCP27248).

GUID-67FFDEAE-00D0-4CC5-9E90-0B8E1030E82F-low.gifFigure 8-7 Wye-Connected Motor Phase Resistance

For a delta-connected motor, the motor phase resistance refers to the equivalent phase to center tap in the wye configuration. In #SLVSCP2818, it is denoted as RY. RPH_CT = RY.

For both the delta-connected motor and the wye-connected motor, the easy way to get the equivalent RPH_CT is to measure the resistance between two phase terminals (RPH_PH), and then divide this value by two, RPH_CT = ½ RPH_PH.

GUID-E13CC8CF-DDD9-436D-BC9D-CA53E3C399F0-low.gifFigure 8-8 Delta-Connected Motor and the Equivalent Wye Connections

The motor phase resistance (RPH_CT) must be converted to a 7-bit digital register value Rm[6:0] to program the motor phase resistance value. The digital register value can be determined as follows:

  1. Convert the motor phase resistance (RPH_CT) to a digital value where the LSB is weighted to represent 9.67 mΩ: Rmdig = RPH_CT / 0.00967.
  2. Encode the digital value such that Rmdig = RMValue[3:0] << RMShift[2:0].

The maximum resistor value, RPH_CT, that can be programmed for the DRV10982-Q1 device is 18.5 Ω, which represents Rmdig = 1920 and an encoded Rm[6:0] value of 0x7Fh. The minimum resistor the DRV10982-Q1 device supports is 0.029 Ω, RPH_CT, which represents Rmdig = 3.

For convenience, the encoded value for Rm[6:0] can also be obtained from Table 8-3.

Table 8-3 Motor Phase Resistance Look-Up Table
RM[6:0] {RMShift[2:0], RMValue[3:0]}RPH_CT (Ω)RM[6:0] {RMShift[2:0], RMValue[3:0]}RPH_CT (Ω)RM[6:0] {RMShift[2:0], RMValue[3:0]}RPH_CT (Ω)
BINARYHEXBINARYHEXBINARYHEX
000 00000x00001010000x280.310410110000x582.4832
000 00010x010.0097010 10010x290.3492101 10010x592.7936
000 00100x020.0194010 10100x2A0.388101 10100x5A3.104
000 00110x030.0291010 10110x2B0.4268101 10110x5B3.4144
000 01000x040.0388010 11000x2C0.4656101 11000x5C3.7248
000 01010x050.0485010 11010x2D0.5044101 11010x5D4.0352
000 01100x060.0582010 11100x2E0.5432101 11100x5E4.3456
000 01110x070.0679010 11110x2F0.582101 11110x5F4.656
000 10000x080.0776011 10000x380.6208110 10000x684.9664
000 10010x090.0873011 10010x390.6984110 10010x695.5872
000 10100x0A0.097011 10100x3A0.776110 10100x6A6.208
000 10110x0B0.1067011 10110x3B0.8536110 10110x6B6.8288
000 11000x0C0.1164011 11000x3C0.9312110 11000x6C7.4496
000 11010x0D0.1261011 11010x3D1.0088110 11010x6D8.0704
000 11100x0E0.1358011 11100x3E1.0864110 11100x6E8.6912
000 11110x0F0.1455011 11110x3F1.164110 11110x6F9.312
001 10000x180.1552100 10000x481.2416111 10000x789.9328
001 10010x190.1746100 10010x491.3968111 10010x7911.1744
001 10100x1A0.194100 10100x4A1.552111 10100x7A12.416
001 10110x1B0.2134100 10110x4B1.7072111 10110x7B13.6576
001 11000x1C0.2328100 11000x4C1.8624111 11000x7C14.8992
001 11010x1D0.2522100 11010x4D2.0176111 11010x7D16.1408
001 11100x1E0.2716100 11100x4E2.1728111 11100x7E17.3824
001 11110x1F0.291100 11110x4F2.328111 11110x7F18.624