SLVUE31 October   2026

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5. 1.5 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 2Hardware
    1. 2.1 Test Points
      1. 2.1.1 Key Connections
        1. 2.1.1.1 Connect a Supply to J6 Connector
        2. 2.1.1.2 PWM Input
          1. 2.1.1.2.1 Operational Mode: Single PWM
          2. 2.1.1.2.2 Operational Mode: HI LI
        3. 2.1.1.3 Dead-Time Control Resistors
        4. 2.1.1.4 Power Supply
    2. 2.2 Power-Up Procedure
      1. 2.2.1 Step 1: Driver Bias Supply
      2. 2.2.2 Step 2: Input Supply
      3. 2.2.3 Step 3: Measure SW Voltage
    3. 2.3 Power- Down Procedure
    4. 2.4 Current Sense Amplifier
    5. 2.5 Assembly Guidelines
  8. 3Implementation Results
    1. 3.1 Electrical Performance Specifications
      1. 3.1.1 Evaluation Setup
    2. 3.2 Performance Data and Results
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  10. 5Additional Information
    1.     Trademarks
  11. 6Revision History
2.1.1.2.1 Operational Mode: Single PWM

Provide the PWM input using a function generator that can provide the desired switching frequency and duty cycle. Connect this function generator output (0-5V signal) to the J7 connector. Figure 2-1 shows this method. The Pin 1 of J7 is the input of the PWM supply and the Pin 2 is connected to GND. Verify that shunt connector J8 is used to short Pin 3 and Pin 4 of J7 to enable this mode. Generate the dead time using the resistor connected between the DT pin (pin 5) and GND.

Make sure that the resistor connected between the MODE pin and GND is 15.8kΩ using the SPDT switch (SW1), and the SPDT switch (SW2) is set to DT set (this introduces 100ns dead time).

LMG1208EVM-141 Operational Mode: Single PWM Figure 2-1 Operational Mode: Single PWM
Table 2-2 Single PWM Mode with EN Function Table
EN PWM HG LG
L X Low Low
H L Low High
H H High Low
H Float Low Low
H Driven to tri-state range (1V to 2.1V) Low Low