SLUU286A March   2008  – October 2021 TPS54286 , TPS54386

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Description
    2. 1.2 Applications
    3. 1.3 Features
  3. 2TPS54386EVM Electrical Performance Specifications
  4. 3Schematic
    1. 3.1 Sequencing Jump (JP3)
    2. 3.2 Enable Jumpers (JP1 and JP2)
    3. 3.3 Test Point Descriptions
      1. 3.3.1 Input Voltage Monitoring (TP1 and TP2)
      2. 3.3.2 Channel 1 Output Voltage Monitoring (TP3 and TP4)
      3. 3.3.3 Channel 1 Loop Analysis (TP5, TP6, TP7 and TP8)
      4. 3.3.4 Channel 1 Switching Waveforms (TP9 and TP10)
      5. 3.3.5 TPS54386 Device Ground (TP11)
      6. 3.3.6 Channel 2 Switching Waveforms (TP12 and TP13)
      7. 3.3.7 Channel 2 Loop Analysis (TP14, TP15, TP16 and TP17)
      8. 3.3.8 Output Voltage Monitoring (TP18 and TP19)
  5. 44 Test Set Up
    1. 4.1 Equipment
      1. 4.1.1 Voltage Source
      2. 4.1.2 Meters
      3. 4.1.3 Loads
      4. 4.1.4 Oscilloscope
      5. 4.1.5 Recommended Wire Gauge
      6. 4.1.6 Other
    2. 4.2 Equipment Setup
      1. 4.2.1 Procedure
      2. 4.2.2 Diagram
    3. 4.3 Start Up / Shut Down Procedure
    4. 4.4 Output Ripple Voltage Measurement Procedure
    5. 4.5 Control Loop Gain and Phase Measurement Procedure
    6. 4.6 Equipment Shutdown
  6. 5TPS54386EVM Typical Performance Data and Characteristic Curves
    1. 5.1 Efficiency
    2. 5.2 Line and Load Regulation
    3. 5.3 Output Voltage Ripple
    4. 5.4 Switch Node
    5. 5.5 Control Loop Bode Plot (low line, VIN = 8 V)
  7. 6EVM Assembly Drawings and Layout
  8. 7List of Materials
  9. 8Revision History

3.3 Test Point Descriptions

Table 3-1 Test Point Descriptions
TEST POINTLABLEUSESECTION
TP1VINMonitor input voltageSection 3.3.1
TP2GNDGround for input voltageSection 3.3.1
TP3VOUT1Monitor VOUT1 VoltageSection 3.3.2
TP4GNDGround for VOUT1 voltageSection 3.3.2
TP5GNDGround for Channel B loop monitoringSection 3.3.3
TP6CHBChannel B for loop monitoringSection 3.3.3
TP7GNDGround for Channel A loop monitoringSection 3.3.3
TP8CHAChannel A for loop monitoringSection 3.3.3
TP9SW1Monitor switching node of Channel 1Section 3.3.4
TP10GNDGround for switch node of Channel 1Section 3.3.4
TP11IC_GNDMonitor device groundSection 3.3.5
TP12SW2Monitor switching node of Channel 2Section 3.3.6
TP13GNDGround for switch node of Channel 2Section 3.3.6
TP14CHAChannel A for loop monitoringSection 3.3.7
TP15GNDGround for Channel A loop monitoringSection 3.3.7
TP16CHBChannel B for loop monitoringSection 3.3.7
TP17GNDGround for Channel B loop monitoringSection 3.3.7
TP18VOUT2Monitor VOUT2 voltageSection 3.3.8
TP19GNDGround for VOUT2 voltageSection 3.3.8