SLVAFZ0 November   2024 DRV8161 , DRV8162

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Three-Phase Gate Driver
    1. 2.1 Architecture
    2. 2.2 Layout Considerations
      1. 2.2.1 Advantages
        1. 2.2.1.1 MCU to DRV Signal Routing
        2. 2.2.1.2 Component Reduction
      2. 2.2.2 Challenges
        1. 2.2.2.1 MOSFET Placement
    3. 2.3 Typical Applications
  6. 3Half-Bridge (Single Phase) Gate Driver
    1. 3.1 Architecture
    2. 3.2 Layout Considerations
      1. 3.2.1 Advantages
        1. 3.2.1.1 MOSFET Placement
        2. 3.2.1.2 Independent Control
        3. 3.2.1.3 Ease of Replacement
      2. 3.2.2 Challenges
        1. 3.2.2.1 Longer Routing Between Gate Driver and Micro Controller
        2. 3.2.2.2 Additional Component Requirements
    3. 3.3 Typical Applications
  7. 4Summary
  8. 5References

2.2.1.1 MCU to DRV Signal Routing

With the entirety of the three-phase pre-drivers being encapsulated into the same package there is added benefit of driver placement simplicity in board design. The MCU signals all head to the single driver IC which outputs the six gate drive signals, therefore, making the routing, for input and serial data communication signals such as SPI, easier.