ZHCS389C June   2011  – December 2022 DRV8662

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Fast Start-up (Enable Pin)
      2. 7.3.2 Gain Control
      3. 7.3.3 Adjustable Boost Voltage
      4. 7.3.4 Adjustable Boost Current Limit
      5. 7.3.5 Internal Charge Pump
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Startup/shutdown Sequencing
        1. 7.4.1.1 PWM Source
        2. 7.4.1.2 DAC Source
      2. 7.4.2 Low-voltage Operation
    5. 7.5 Programming
      1. 7.5.1 Programming the Boost Voltage
      2. 7.5.2 Programing the Boost Current Limit
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 DRV8662 System Diagram with DAC Input
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Inductor Selection
          2. 8.2.1.2.2 Piezo Actuator Selection
          3. 8.2.1.2.3 Boost Capacitor Selection
          4. 8.2.1.2.4 Current Consumption Calculation
          5. 8.2.1.2.5 Input Filter Considerations
        3. 8.2.1.3 Application Curves
      2. 8.2.2 DRV8662 System Diagram with Filtered Single-Ended PWM Input
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Input Filter Design
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Trademarks
  12. 12Mechanical, Packaging, and Orderable Information

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订购信息

3 说明

DRV8662 是一款单芯片压电式触觉驱动器，此驱动器具有集成的 105V 升压开关、集成型功率二极管、和集成的完全差分放大器。这个多用途器件能够驱动高压和低压压电式触觉制动器。输入信号可为差分或者单端。DRV8662 支持四种 GPIO 控制的增益：28.8dB、34.8dB、38.4dB 和 40.7dB。

使用两个外部电阻来设定升压电压，并且升压电流限制可通过 REXT 电阻进行编程。此升压转化器架构将不允许对电源电流的要求超过 REXT 电阻所设定的限值；因此，DRV8662 非常适合于便携式应用。这个特性还允许用户针对基于所需性能要求的给定电感器来优化 DRV8662。

1.5ms 的典型启动时间使得 DRV8862 成为用于快速触觉响应的理想压电式驱动器。该器件具有热过载保护，可在过驱动时免遭损坏。

器件信息(1)
器件型号封装封装尺寸（NOM）
DRV8662VQFN (20)4.00mm x 4.00mm
(1) 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。
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