SLUU224A May   2005  – March 2022 TPS40100

 

  1.   Trademarks
  2. 1Introduction
  3. 2Description
    1. 2.1 Applications
    2. 2.2 Features
      1. 2.2.1 Using Remote Sense (J3)
      2. 2.2.2 Simultaneous Tracking (J3)
      3. 2.2.3 Enable (SW2)
      4. 2.2.4 Margin Up/Down (J4)
      5. 2.2.5 Power Good (J1)
      6. 2.2.6 Synchronization (J1)
  4. 3Electrical Performance Specifications
  5. 4Schematic
  6. 5Test Setup
    1. 5.1 Equipment
      1. 5.1.1 Voltage Source (VIN)
      2. 5.1.2 Meters
      3. 5.1.3 Loads (LOAD1)
      4. 5.1.4 Recommended Wire Gauge
      5. 5.1.5 Other
    2. 5.2 Equipment Setup
      1. 5.2.1 Initial EVM Jumper and Switch Settings
      2. 5.2.2 Procedure
      3. 5.2.3 Start-Up and Shutdown Procedure
      4. 5.2.4 Equipment Shutdown
    3. 5.3 Other Tests
      1. 5.3.1 Adjusting Output Voltage (R1 and R3)
      2. 5.3.2 Remote Sense Test Setup
      3. 5.3.3 Voltage Tracking Test Setup
        1. 5.3.3.1 Single Unit Tracking (Charge)
        2. 5.3.3.2 Single Unit Tracking (Discharge)
      4. 5.3.4 Enable and Disable Test Setup
        1. 5.3.4.1 Power-On Enable
      5. 5.3.5 Margin Test Setup
        1. 5.3.5.1 Margin Up 5%
      6. 5.3.6 Power Good and Synchronization Test Setup
        1. 5.3.6.1 Synchronization
  7. 6TPS40100EVM Typical Performance Data and Characteristics Curves
    1. 6.1 Efficiency
    2. 6.2 Line and Load Regulation
    3. 6.3 Loop Stability
  8. 7EVM Assembly Drawings and Layout
  9. 8List of Materials
  10. 9Revision History

5.1.5 Other

Fan

This evaluation module includes components that can get hot to the touch. A small fan capable of 200–400 LFM is required to reduce component surface temperatures to prevent user injury. The EVM should not be left unattended while powered or probed while the fan is not running.

Oscilloscope

A 60-MHz or faster oscilloscope can be used to monitor many points on the EVM. For output ripple voltage measurements, the Oscilloscope should be set for the following to take output ripple measurements:

  • 20-MHz bandwidth limiting
  • 1-MW impedance
  • AC coupling
  • 1-ms/division horizontal resolution
  • 10-mV to 20-mV/division vertical resolution

Function Generator

A function generator capable of sourcing a 0-V to 5-V square wave at frequencies past 400 Khz.