SLVUBX8B October   2020  – December 2021 TPS2661

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 EVM Applications
  3. 2Description
  4. 3Schematic
  5. 4General Configurations
    1. 4.1 Physical Access
    2. 4.2 Test Equipment and Setup
      1. 4.2.1 Power Supplies
      2. 4.2.2 Meters
      3. 4.2.3 Oscilloscope
      4. 4.2.4 Loads
  6. 5Test Setup and Procedures
    1. 5.1 Overload Protection Test
    2. 5.2 Output Short-Circuit Test
    3. 5.3 Input Undervoltage Protection Test
    4. 5.4 Output Undervoltage Protection Test
    5. 5.5 Output Overvoltage Protection Test
    6. 5.6 TPS26612 Overload Protection Test
    7. 5.7 Current Limiting for VIN < –Vs
    8. 5.8 Surge Protection Test (Current Input, CH1)
    9. 5.9 Surge Protection Test (Analog Output, CH2)
  7. 6EVAL Board Assembly Drawings and Layout Guidelines
    1. 6.1 PCB Drawings
  8. 7Bill Of Materials (BoM)
  9. 8Revision History

5.2 Output Short-Circuit Test

Use the following instructions to perform an output short-circuit test on TPS26610 (U1):

  1. Set the jumper setting J4 in 2–3 position to set MODE = 180 kΩ
  2. Open jumper J6
  3. Set dual polarity regulated power supply to +15 V : 0 V : –15 V and apply the power at connector J2
  4. Apply a voltage of 12 V at I_IN_1
  5. Short the output of the device for example, I_OUT_1 to AGND_1 with a shorter cable
  6. Observe the waveforms using an oscilloscope

Figure 5-5 and Figure 5-6 show test waveforms of output hot-short on the TPS2661 eFuse evaluation board.

GUID-20201015-CA0I-1SJS-ZPZJ-VRZSZFW2WKWG-low.pngFigure 5-5 Output Short-Circuit Response of TPS26610 Device
GUID-20201015-CA0I-PZQZ-4TGK-DNJW5ZSGKPQR-low.png Figure 5-6 Output Short-Circuit Response of TPS26610 Device (Zoomed)