ZHCS343C May   2012  – January 2023 DRV2665

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5. Revision History
  6. Pin Configuration and Functions
  7. 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 Switching Characteristics
    8. 6.8 Typical Characteristics
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Support for Haptic Piezo Actuators
      2. 7.3.2  Flexible Front End Interface
      3. 7.3.3  Ramp Down Behavior
      4. 7.3.4  Low Latency Startup
      5. 7.3.5  Low Power Standby Mode
      6. 7.3.6  Device Reset
      7. 7.3.7  Amplifier Gain
      8. 7.3.8  Adjustable Boost Voltage
      9. 7.3.9  Adjustable Current Limit
      10. 7.3.10 Internal Charge Pump
      11. 7.3.11 Device Protection
        1. 7.3.11.1 Thermal Protection
        2. 7.3.11.2 Overcurrent Protection
        3. 7.3.11.3 Brownout Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 FIFO Mode
      2. 7.4.2 Analog Playback Mode
      3. 7.4.3 Low Voltage Operation Mode
    5. 7.5 Programming
      1. 7.5.1 Programming the Boost Voltage
      2. 7.5.2 Programming the Boost Current Limit
      3. 7.5.3 I2C Interface
        1. 7.5.3.1 General I2C Operation
        2. 7.5.3.2 Single-Byte and Multiple-Byte Transfers
        3. 7.5.3.3 Single-Byte Write
        4. 7.5.3.4 Multiple-Byte Write and Incremental Multiple-Byte Write
        5. 7.5.3.5 Single-Byte Read
        6. 7.5.3.6 Multiple-Byte Read
    6. 7.6 Register Map
      1. 7.6.1 Address: 0x00
      2. 7.6.2 Address: 0x01
      3. 7.6.3 Address: 0x02
      4. 7.6.4 Address: 0x0B
  9. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Inductor Selection
        2. 8.2.2.2 Piezo Actuator Selection
        3. 8.2.2.3 Boost Capacitor Selection
        4. 8.2.2.4 Bulk Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 Initialization Setup
      1. 8.3.1 Initialization Procedure
  10. Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Community Resources
    2. 11.2 Trademarks
  13. 12Mechanical, Packaging, and Orderable Information

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说明

DRV2665 器件是一款压电式触觉驱动器,该驱动器集成有 105V 升压开关、集成功率二极管、集成型全差分放大器和集成型数字前端。这款多用途器件能够驱动高压和低压压电式触觉致动器。输入信号可在 I2C 端口或者通过模拟输入驱动为触觉数据包。

DRV2665 器件的数字接口可通过 I2C 兼容总线实现。在主机系统中,数字接口可减轻 PWM 生成或其他模拟通道要求所需要的昂贵处理器负担。对内部先入先出缓冲器 (FIFO) 执行的任何写入操作均会自动唤醒此器件,并在 2ms 的内部启动程序之后开始播放波形。当数据流停止或者 FIFO 正在运行时,DRV2665 器件将自动进入一个无爆音关断程序。

升压电压通过两个外部电阻进行设置,升压电流限值可通过 REXT 电阻进行编程。凭借 2ms 的典型启动时间,DRV2665 成为实现快速触觉响应的压电式驱动器的理想选择。该器件具有热过载保护功能,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(最大值)
DRV2665QFN (20)4.00 mm × 4.00 mm
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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