SLVUDX4 July   2026 DRV8218

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Additional Images
    2. 2.2 Setup
      1. 2.2.1 Input Potentiometers and MODE Jumper
      2. 2.2.2 PWM Mode (MODE = Logic Low)
      3. 2.2.3 PH/EN Mode (MODE = Logic High)
      4. 2.2.4 Half-Bridge (MODE = Hi-Z)
      5. 2.2.5 Parallel Multiple Drivers
  9. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials (BOM)
  10. 4Additional Information
    1.     Trademarks

2.2.2 PWM Mode (MODE = Logic Low)

When the MODE pin is tied to GND or logic low, the control interface is set to PWM mode. In PWM mode, the two input pins IN1 and IN2 are used to drive the outputs pins (OUT1 and OUT2) using PWM or 100% duty cycle. The PWM mode allows for the H-Bridge to recirculate the current during PWM off time through both Coast mode (H-Bridge Hi-Z) or Brake mode (low-side slow decay).

Table 2-3 PWM Mode Control
IN1 IN2 OUT1 OUT2 Description
LOW- turn IN1/EN PWM pot completely counter-clockwiseLOW- turn IN2/PH PWM pot completely counter-clockwiseHi-ZHi-ZCoast (H-bridge Hi-Z)/ Low-power automatic sleep mode
PWM - turn IN1/EN PWM pot in any positionHIGH- turn IN2/PH PWM pot completely clockwiseLHReverse (OUT2 -> OUT1)
HIGH- turn IN1/EN PWM pot completely clockwisePWM - turn IN2/PH PWM pot in any positionHLForward (OUT1 -> OUT2)
HIGH- turn IN1/EN PWM pot completely clockwiseHIGH- turn IN2/PH PWM pot completely clockwiseLLBrake (low-side slow decay)