SLUUCX3 august   2023 TPS51385

 

  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
  7. 2Hardware
    1. 2.1 Input and Output Connections
    2. 2.2 Modifications
      1. 2.2.1 Output Voltage Setpoint
      2. 2.2.2 Mode Selection
  8. 3Implementation Results
    1. 3.1 Evaluation Setup
    2. 3.2 Test Setup and Results
      1. 3.2.1 Start-Up
      2. 3.2.2 Shutdown
      3. 3.2.3 Output Voltage Ripple
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1.     Trademarks
  11. 6References

3.1 Evaluation Setup

  1. Make sure that the jumper at JP2 (Enable High Control) is covered to connect VIN to pin 1 of JP3. Also make sure JP3 (Enable Control) pin 2 and 3 are covered to shunt EN to GND to disable the output.
  2. Apply appropriate input voltage to VIN (J1-1) or TP1 and GND (J1-2) or TP8. Connect a power supply capable of supplying 7-A to J1 through a pair of 20AWG wires. Note that the board cannot support hot plug-in. The input lines must be connected between J1 and an external power source first before turning on the power source.
  3. Move the jumper at JP3 (Enable Control) from pin 2 and 3 (EN and OFF) to pin 2 and 1 (EN and ON) and make sure JP2 pin 1 and pin 2 are covered. Then, the output can be enabled.
  4. Apply the loading to VOUT (J2-2) or TP4 and GND (J2-1) or TP10. The load must be connected to J2 through a pair of 20AWG wires. The maximum load current capability is 7 A. Minimize wire lengths to reduce losses in the wires.