ZHCSQH2 July   2024 DRV81008-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
      1. 6.5.1 SPI Timing Requirements
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Control Pins
        1. 7.3.1.1 Input Pins
        2. 7.3.1.2 nSLEEP Pin
      2. 7.3.2 Power Supply
        1. 7.3.2.1 Modes of Operation
          1. 7.3.2.1.1 Power-up
          2. 7.3.2.1.2 Sleep mode
          3. 7.3.2.1.3 Idle mode
          4. 7.3.2.1.4 Active mode
          5. 7.3.2.1.5 Limp Home mode
        2. 7.3.2.2 Reset condition
      3. 7.3.3 Power Stage
        1. 7.3.3.1 Switching Resistive Loads
        2. 7.3.3.2 Inductive Output Clamp
        3. 7.3.3.3 Maximum Load Inductance
        4. 7.3.3.4 Switching Channels in parallel
      4. 7.3.4 Protection and Diagnostics
        1. 7.3.4.1 Undervoltage on VM
        2. 7.3.4.2 Overcurrent Protection
        3. 7.3.4.3 Over Temperature Protection
        4. 7.3.4.4 Over Temperature Warning
        5. 7.3.4.5 Over Temperature and Overcurrent Protection in Limp Home mode
        6. 7.3.4.6 Reverse Polarity Protection
        7. 7.3.4.7 Over Voltage Protection
        8. 7.3.4.8 Output Status Monitor
      5. 7.3.5 SPI Communication
        1. 7.3.5.1 SPI Signal Description
          1. 7.3.5.1.1 Chip Select (nSCS)
            1. 7.3.5.1.1.1 Logic high to logic low Transition
            2. 7.3.5.1.1.2 Logic low to logic high Transition
          2. 7.3.5.1.2 Serial Clock (SCLK)
          3. 7.3.5.1.3 Serial Input (SDI)
          4. 7.3.5.1.4 Serial Output (SDO)
        2. 7.3.5.2 Daisy Chain Capability
        3. 7.3.5.3 SPI Protocol
        4. 7.3.5.4 SPI Registers
          1. 7.3.5.4.1  Standard Diagnosis Register
          2. 7.3.5.4.2  Output control register
          3. 7.3.5.4.3  Input 0 Mapping Register
          4. 7.3.5.4.4  Input 1 Mapping Register
          5. 7.3.5.4.5  Input Status Monitor Register
          6. 7.3.5.4.6  Open Load Current Control Register
          7. 7.3.5.4.7  Output Status Monitor Register
          8. 7.3.5.4.8  Configuration Register
          9. 7.3.5.4.9  Output Clear Latch Register
          10. 7.3.5.4.10 Configuration Register 2
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Typical Application
      2. 8.1.2 Suggested External Components
    2. 8.2 Layout
      1. 8.2.1 Layout Guidelines
      2. 8.2.2 Package Footprint Compatibility
  10. 9 Device and Documentation Support
    1. 9.1 接收文档更新通知
    2. 9.2 支持资源
    3. 9.3 Trademarks
    4. 9.4 静电放电警告
    5. 9.5 术语表
  11. 10Mechanical, Packaging, and Orderable Information
  12. 11Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息
7.3.2.1.4 Active mode

Active mode is the normal operation mode of the DRV81008-Q1 when no Limp Home condition is set and it is necessary to drive some or all loads. Voltage levels of VDD and VM influence the behavior as described in Section 7.3.2. Device current consumption is specified with IVDD_ACT and IVM_ACT (IACT for the whole device).

The device enters Active mode when nSLEEP pin is set to logic high and one of the input pins is set to logic high or one ENx bit is set to 1b.

  • If ACT bit is set to 0b, the device returns to Idle mode as soon as all inputs pins are set to logic low and ENx bits are set to 0b.

  • If ACT is set to 1b, the device remains in Active mode independently of the status of input pins and ENx bits.

  • An undervoltage condition on VDD supply brings the device into Idle mode, if all input pins are set to logic low.

Even if the registers MAP0 and MAP1 are both set to 00H but one of the input pins INx is set to logic high, the device goes into Active mode.
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