SLUUCU3 November   2023

 

  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
      8. 2.1.8 List of Test Points, Jumpers, and Connectors
    2. 2.2 Test Setup
      1. 2.2.1 Test and Configuration Software
        1. 2.2.1.1 Description
        2. 2.2.1.2 Features
      2. 2.2.2 Evaluating Split Rail Input
  9. 3Software
    1. 3.1 Using the Fusion GUI
      1. 3.1.1  Opening the Fusion GUI
      2. 3.1.2  General Settings
      3. 3.1.3  Changing ON_OFF_CONFIG
      4. 3.1.4  Pop-Up for Some Commands While Conversion is Enabled
      5. 3.1.5  SMBALERT# Mask
      6. 3.1.6  Device Info
      7. 3.1.7  Phase Commands
      8. 3.1.8  All Config
      9. 3.1.9  Monitor
      10. 3.1.10 Status
    2. 3.2 EVM Configuration Using the Fusion GUI
      1. 3.2.1 Configuration Procedure
  10. 4Implementation Results
    1. 4.1 Performance Data and Typical Characteristic Curves
      1. 4.1.1 Efficiency
      2. 4.1.2 Load Regulation
      3. 4.1.3 Line Regulation
      4. 4.1.4 Transient Response
      5. 4.1.5 Control Loop Bode Plot
      6. 4.1.6 Output Ripple
      7. 4.1.7 Control On
      8. 4.1.8 Control Off
      9. 4.1.9 Thermal Image
    2. 4.2 Test Procedure
      1. 4.2.1 Line and Load Regulation and Efficiency Measurement Procedure
      2. 4.2.2 Efficiency Measurement Test Points
      3. 4.2.3 Control Loop Gain and Phase Measurement Procedure
  11. 5Hardware Design Files
    1. 5.1 Schematic
    2. 5.2 EVM Assembly Drawing and PCB Layout
    3. 5.3 Bill of Materials
  12. 6Additional Information
    1.     Trademarks

2.1.8 List of Test Points, Jumpers, and Connectors

Table 3-1 lists the test point functions.

Table 2-1 Test Point Functions
Test Point Name Description
TP1 EXT_AVIN External AVIN test point
TP2, TP8, TP19 PGND PGND test point
TP3 CNTL CNTL signal on J2 header
TP4 DATA DATA signal on J2 header
TP5 CLK CLK signal on J2 header
TP6 SMBALRT SMBALERT signal on J2 header
TP7 VOUT VOUT + test point
TP9 PG PGOOD signal of VOUT
TP10 VSHARE VSHARE test point. Sensitive signal
TP11 SYNC External clock input (SYNC IN) or output to synchronize other devices(SYNC OUT)
TP12 PVIN VIN + test point
TP13 VDD5 VDD5 test point or external VDD5 input
TP14 BCX_CLK Clock for back-channel communications between stacked devices
TP15 BCX_DAT Data for back-channel communications between stacked devices
TP16 CHA Channel A for VOUT small signal loop gain measurements (B/A setup)
TP17 CHB Channel B for VOUT small signal loop gain measurements (B/A setup)
TP18 RSNS – VOUT remote sense – voltage point
TP20 PGND_EFF PGND reference for PVIN efficiency measurement
TP21 PGND_EFF PGND reference for VOUT efficiency measurement
TP22 RSNS + VOUT remote sense + voltage point
TP23 PVIN_EFF PVIN measurement point for efficiency, reference to TP20
TP24 VOUT_EFF VOUT measurement point for efficiency, reference to TP21

Table 3-2 lists the EVM jumpers.

Table 2-2 Jumpers
Jumper Name Description
JP1 PMBus to AVIN Short to connect USB-to-GPIO 3.3V to AVIN, Remove Jumper if not use external AVin
JP2 USB to PVIN Short to connect PVIN to micro USB connector, Remove Jumper if not use Micro UBS connection
JP3 AVIN AVIN input source selection, Default: Jumper short on pin2 and pin3
JP4 EN EN pin selections, Default: Jumper short on pin3 and pin4

Table 3-3 lists the options for the EN pin selections on JP4.

Table 2-3 JP4 Selections
Shunt Position Selection
CNTL_INPUT PMBus adapter control signal
UVLO Resistor divider to PVIN
GND EN short to ground

Table 3-4 lists the options for the AVIN pin selections on JP3.

Table 2-4 JP3 Selections
Shunt Position Selection
EXT AVIN pin connected to external AVIN input through 10-Ω resistor. Use this selection when testing with a split rail input.
PVIN AVIN pin connected to PVIN through 10-Ω resistor

Table 3-5 lists the EVM connector functions.

Table 2-5 Connector Functions
Connector Name Description
J1 Micro-USB Power Micro USB connector to power EVM from a 5-V USB source
J2 PMBus PMBus socket for TI FUSION adapter
T2 PVIN VIN+ connector
T3 PGND VIN– connector
T1 AVIN External AVIN connector
T4 VOUT VOUT+ connector
T5 PGND VOUT– connector