SLVUBG8A July   2018  – December 2020 TPS23755

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Electrical Specifications
  4. 3Description
  5. 4Schematic
  6. 5General Configuration and Description
    1. 5.1 Physical Access
  7. 6TPS23755EVM-894 Performance Data
    1. 6.1 Startup to PSE and DCDC Startup
    2. 6.2 Transient Response
    3. 6.3 Efficiency
    4. 6.4 Load Regulation
    5. 6.5 Recovery from VOUT Short
    6. 6.6 Slew Rate Adjust
  8. 7EVM Assembly Drawings and Layout Guidelines
    1. 7.1 PCB Drawings
    2. 7.2 Layout Guidelines
    3. 7.3 EMI Containment
  9. 8Bill of Materials
  10.   Revision History

5.1 Physical Access

Table 5-1 lists the EVM connector functionality. Table 5-2 describes the test point availability and jumper functionality.

Table 5-1 Connector Functionality
ConnectorLabelDescription
J1PWR+DATAPoE input; connect to PSE power and data source.
J2DATAEthernet data passthrough; connect to downstream Ethernet device.
J3OutputOutput connector to loadx.
J5Adapter InputDC-to-DC converter input bypassing the PoE converter; connect a 12-V adapter.
J4LEDJump J4 to visually indicate the output voltage.
J6FREQJump to 'Fixed' for fixed frequency. Jump to 'Dither' to enable spread spectrum dithering.
Table 5-2 Test Points
Test PointLabelDescription
TP1BSBob Smith Termination
TP2, TP7PGNDPrimary ground
TP3VOUTOutput voltage
TP4VCCBias voltage
TP5GNDSecondary ground
TP6VSSPoE input return ground
TP8VPDInput voltage