SLUUB60B May   2015  – August 2021 TPS544B25 , TPS544C25

 

  1.   Trademarks
  2. Introduction
  3. Description
    1. 2.1 Typical End-User Applications
    2. 2.2 EVM Features
  4. EVM Electrical Performance Specifications
  5. Schematic
  6. Test Setup
    1. 5.1 Test and Configuration Software
      1. 5.1.1 Description
      2. 5.1.2 Features
    2. 5.2 Test Equipment
    3. 5.3 The PWR-681EVM
    4. 5.4 List of Test Points, Jumpers ans Switch
  7. EVM Configuration Using the Fusion GUI
    1. 6.1 Configuration Procedure
  8. Test Procedure
    1. 7.1 Line/Load Regulation Measurement Procedure
    2. 7.2 Efficiency
    3. 7.3 Bode Plot Measurement Procedure
    4. 7.4 Equipment Shutdown
  9. Performance Data and Typical Characteristic Curves
    1. 8.1  Efficiency
    2. 8.2  Load Regulation
    3. 8.3  Line Regulation
    4. 8.4  Transient Response
    5. 8.5  Output Ripple
    6. 8.6  Control On
    7. 8.7  Control Off
    8. 8.8  Overcurrent Protection
    9. 8.9  Control Loop Bode Plot
    10. 8.10 Thermal Image
  10. Fusion GUI
  11. 10EVM Assembly Drawing and PCB Layout
  12. 11List of Materials
  13. 12Revision History

List of Test Points, Jumpers ans Switch

Table 5-1 The Function of Each Test Point
ITEMTYPENAMEDESCRIPTION
TP1T-H loopSWPower supply Switch Node
TP2T-H loopCH-BMeasure loop stability
TP3T-H loopCH-AMeasure loop stability
TP4T-H loopV_sense +Remote sense +
TP5T-H loopV_sense –Remote sense –
TP6T-H loopVoutUse this VOUT for efficiency measurements
TP7T-H loopSYNC/RSTInput a sync signal from a clock source; or apply logic low signal to RESET VOUT to initial boot-up voltage set by VSET pin. Refer to the Datasheet for details.
TP8T-H loopVDDSupplies the internal circuitry
TP9T-H loopSMB_AlertMonitor alerts
TP10T-H loopGNDCommon GND
TP11T-H loopTsns/SSMonitor the voltage on the TSNS/SS pin
TP12T-H loopPGOODPGOOD (also drives LED lamp)
TP13T-H loopVOUTUse for tip-barrel ripple measurement
TP14T-H loopGNDUse for tip-barrel ripple measurement
JP12-pin jumperLED VinRemove jumper to measure Vin for efficiency. Replace jumper and LED lights with PGOOD.
JP22-pin jumperCNTLShunts control pin to GND (turns off the IC for default configuration of ON_OFF_CONFIG, refer to the Datasheet for details)
S1SPDT switchTSNS and SS SwitchSwitch between external temperature sensor and SS resistor to be connected to TSNS/SS pin