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

1.1 EVM Features

TPS2661EVM board features include:

  • Bidirectional current input for CH1, range: ±20 mA
  • Onboard selectable 3 burden resistors for CH1: 50 Ω, 100 Ω, 250 Ω
  • Voltage Input on CH2
  • Onboard Power Amplifier OPA551 on CH2 for providing power for Analog output on CH2
  • Gain options of 1, 2.5, and 4 for CH2 with provision to compensate for ON resistance of the TPS2661x
  • Selectable overload response using jumpers on MODE pin
  • IEC61000-4-5 Signal Line Surge (±1 kV, 42 Ω) Immunity with TVS3301 on Input (CH1) and Output (CH2)
  • External LED to indicate status of the system