TIDT443 July   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
    4. 1.4 Programming the TPS26744E-Q1
    5. 1.5 Test Setup
  7. 2Testing and Results
    1. 2.1 Efficiency and Loss Graphs
    2. 2.2 Efficiency and Loss Data
    3. 2.3 Thermal Images
  8. 3Waveforms
    1. 3.1 Output Transitions
    2. 3.2 Output Ripple

1.5 Test Setup

Shown is Port-A delivering 5V at 2.8A, and Port-B delivering 20V at 2.4A.

Input J1 (top left of board) connected to 48V source.

Port-A J130 is connected to USB-PD rated to 5A 24-pin male to male 1-meter cable. Other end of cable is connected to Power-Z KM003C being used as a load monitor. The other end of KM003C is connected to 1.7Ω load with CCx pins pulled down with 5.1k resistors to get 5V at 3A max.

Port-B J230 is connected to Power-Z KM003C being used as a clicker to get 20Vout 3A max. Other end of KM003C is connected to USB-PD rated to 5A 24-pin male to male 1-meter cable. Other end of cable is connected to a breakout board allowing the USB-PD power to be connected to an electronic load (not shown) through standard banana cables.

PMP23501 Test Setup Figure 1-2 Test Setup