ZHCSHN8B February   2018  – October 2018 LMG1020

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
    1.     Device Images
      1.      简化的激光雷达 (LiDAR) 驱动器级图
  4. 修订历史记录
  5. Pin Configuration and Functions
    1.     Pin Functions
  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 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Stage
      2. 7.3.2 Output Stage
      3. 7.3.3 VDD and undervoltage lockout
      4. 7.3.4 Overtemperature Protection (OTP)
    4. 7.4 Device Functional Modes
  8. 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 Handling Ground Bounce
        2. 8.2.2.2 Creating Nanosecond Pulse With LMG1020
      3. 8.2.3 VDD and Overshoot
      4. 8.2.4 Operating at Higher Frequency
      5. 8.2.5 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Gate Drive Loop Inductance and Ground Connection
      2. 10.1.2 Bypass Capacitor
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 文档支持
      1. 11.1.1 相关文档
    2. 11.2 接收文档更新通知
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 术语表
  12. 12机械、封装和可订购信息

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

Creating Nanosecond Pulse With LMG1020

LMG1020 can be used to drive pulses of nano seconds duration on to a capacitive load. LMG1020 can be driven with a equivalently short pulse on one input pin. However, this takes a sufficiently strong digital driver and careful consideration of the routing parasitics from digital output to input of LMG1020. Two inputs and included AND gate in LMG1020 provide an alternate method to create a short pulse at the LMG1020 output. Starting with both IN+ and IN– at low, taking IN+ high will cause the output to go high. Now if IN– is taken high as well, output will be pulled low. So a digital signal and its delayed version can be applied to IN+ and IN– respectively to create a pulse at the output with width corresponding to the delay between the signals, as shown in Figure 10. The delay can be digitally controlled in the nanosecond range. This method alleviates the requirements for driving the input of LMG1020. If a separate delayed version of the digital signal is not available, a RC delay followed by a buffer can be used to derive the second signal. Optionally, if LMG1020 must be driven with a single short duration pulse, that pulse can itself be generated using another LMG1020 by the above method to meet drive requirements.

LMG1020 lmg1020-signal-timing-snosd45.gifFigure 10. Timing Diagram To Create Short Pulses