SLUUD52 August   2024 TPS544E27

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
      1. 1.1.1 Before You Begin
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Test Equipment
      1. 2.1.1 Voltage Source
      2. 2.1.2 Oscilloscope
      3. 2.1.3 Multimeters
      4. 2.1.4 Output Load
      5. 2.1.5 Fan
      6. 2.1.6 USB-to-GPIO Interface Adapter:
      7. 2.1.7 Recommended Wire Gauge
    2. 2.2 List of Test Points, Jumpers, and Connectors
    3. 2.3 Efficiency Measurement Test Points
    4. 2.4 Control Loop Gain and Phase Measurement
    5. 2.5 External 5V Bias to Enhance Efficiency
    6. 2.6 Input Current Measurement
  9. 3Software
    1. 3.1 Opening the PMBus® Fusion GUI
    2. 3.2 Monitor Page
    3. 3.3 Status Page
  10. 4Implementation Results
    1. 4.1 Performance Data and Typical Characteristics Curves
  11. 5Hardware Design Files
    1. 5.1 Schematic
    2. 5.2 PCB Layout
    3. 5.3 Bill of Materials
  12. 6Additional Information
    1. 6.1 Trademarks

2.2 List of Test Points, Jumpers, and Connectors

Table 2-1 lists the test point functions.

Table 2-1 Test Point Functions
Test PointNameDescription
TP1I_IN_PPositive side of input current sensing point
TP2VOUTMonitor output ripple
TP3I_IN_MNegative side of input current sensing point
TP4PVINPositive side of input voltage
TP5SWMonitor switching node frequency
TP6PVIN_EFFPositive side of input voltage sensing point to measure efficiency
TP7PGND_EFFPGND of input voltage sensing point to measure efficiency
TP8PGNDPGND of input voltage
TP9VOUT_EFFPositive side of output voltage sensing point to measure efficiency
TP10BODE_CHBMeasurement point of the receiving end from the frequency response analyzer
TP11SWMonitor switching node frequency
TP12VCC/VDRVMonitor the voltage on VCC/VDRV pin
TP13VOUT_REGOutput voltage positive sense point
TP14VCCEXTMonitor the voltage on External Bias
TP15CF/ALRTMonitor catastrophic fault voltage if CAT_FAULT# is selected
TP16BODE_CHAInject signal from the frequency response analyzer
TP17PGMonitor power-good signal
TP18PGND_REGOutput voltage PGND sense point
TP19GOSNSRemote sense reference for PGND
TP20PGND_EFFPGND of output voltage sensing point to measure efficiency
TP21ENMonitor EN pin signal
TP22PMB_CLKMonitor PMBus CLK signal
TP23PMB_ALERT#Monitor PMBus ALERT# signal
TP24 PMB_DATA Monitor PMBus DATA signal
TP25 VCCIO Monitor external 1V pullup voltage for SVID
TP26AGNDMonitor external 1V pullup AGND for SVID

Table 2-2 lists the EVM jumper functions

Table 2-2 Jumper Functions
JumperNameDescription
J6PG_PULLUPShunt short to pull up PG to VCC/VDRV
J7CURRENT SENSE OPTIONShunt short to connect I_IN_P and I_IN_M to PVIN
J9EN_SRCShunt short pin3 and pin4 to EN from PVIN
J12 ADDR Shunt short pin1 and pin2 to set PMBus address 0x7Bh
All others JumperNo shunt short

Table 2-3 lists the EVM connector functions.

Table 2-3 Connector Functions
Connector Name Description
J1 P12_CPU_DIMM The option to connect to P12V_CPU_DIMM for DIMM input current measurement
J2 P12V_DDR The option to connect to P12V_DDR for DIMM input current measurement
J3 PVIN VIN screw terminal to connect input voltage
J4 VOUT VIN screw terminal to connect output to load
J5 EXTBIAS Override internal LDO with external 5V bias to improve efficiency
J6 PG PULLUP PGOOD pullup, 2 pin header to pull up PGood to VCC/VDRV
J7 CUIRRENT SENSE OPTION Input current sense option. Shunt short to disable input current sense feature
J8 Mini Slammer Connector block to interface with Mini Slammer
J9 EN_SRC 2-pin header for enable. Add shunt to connect EN to PVIN and enable the device. Remove shunt to disable device
J10 Mini Slammer Connector block to interface with Mini Slammer
J11 VORST PULLUP VORST pullup. 2-pin header to pullup VORST to VCC/VDRV
J12 ADDR Pin header block to select default PMBus address
J13 PGND Power ground test point
J14 USB2GPIO PMBus interface connector to connect the USB to GPIO interface adapter to the EVM
J15 SV_ALRT 2-pin header for SVID ALERT# line
J16 SV_DIO 2-pin header for SVID bi-directional data line
J17 SV_CLK 2-pin header for SVID CLK line