SLUUCK6A December   2021  – February 2022 TPSM8D6C24

 

  1.   Trademarks
  2. 1 Description
    1. 1.1 Before You Begin
    2. 1.2 Features
  3. 2 Electrical Performance Specifications
  4. 3 Schematic
  5. 4 Test Setup
    1. 4.1 Test and Configuration Software
      1. 4.1.1 Description
      2. 4.1.2 Features
    2. 4.2 Test Equipment
      1. 4.2.1 Voltage Source
      2. 4.2.2 Oscilloscope
      3. 4.2.3 Multimeters
      4. 4.2.4 Output Load
      5. 4.2.5 Fan
      6. 4.2.6 USB-to-GPIO Interface Adapter
      7. 4.2.7 Recommended Wire Gauge
    3. 4.3 List of Test Points, Jumpers, and Connectors
    4. 4.4 Evaluating Split Rail Input
  6. 5 EVM Configuration Using the Fusion GUI
    1. 5.1 Configuration Procedure
  7. 6 Test Procedure
    1. 6.1 Line and Load Regulation and Efficiency Measurement Procedure
    2. 6.2 Efficiency Measurement Test Points
    3. 6.3 Control Loop Gain and Phase Measurement Procedure
  8. 7 Performance Data and Typical Characteristic Curves
    1. 7.1 Efficiency
    2. 7.2 Load Regulation
    3. 7.3 Line Regulation
    4. 7.4 Transient Response
    5. 7.5 Control Loop Bode Plot
    6. 7.6 Output Ripple
    7. 7.7 Control On
    8. 7.8 Control Off
    9. 7.9 Thermal Image
  9. 8 EVM Assembly Drawing and PCB Layout
  10. 9 Bill of Materials
  11. 10Using the Fusion GUI
    1. 10.1  Opening the Fusion GUI
    2. 10.2  General Settings
    3. 10.3  Changing ON_OFF_CONFIG
    4. 10.4  Pop-Up for Some Commands While Conversion is Enabled
    5. 10.5  SMBALERT# Mask
    6. 10.6  Device Info
    7. 10.7  Phase Commands
    8. 10.8  All Config
    9. 10.9  Pin Strapping
    10. 10.10 Monitor
    11. 10.11 Status
  12. 12Revision History

4.3 List of Test Points, Jumpers, and Connectors

Table 4-1 lists the test point functions.

Table 4-1 Test Point Functions
Test Point Name Description
TP1 PVIN PVIN test point
TP2, TP3, TP4, TP10, TP16, TP22, TP27 PGND PGND test point
TP5 Remote Sense Vout A (+) VOUT_A remote sense + voltage point
TP6 VOUT_A VOUT_A sensing test point
TP7 CHA_VoutA Channel A for VOUT_A small signal loop gain measurements (B/A setup)
TP8 CHB_VoutA Channel B for VOUT_A small signal loop gain measurements (B/A setup)
TP9 Remote Sense Vout A (–) VOUT_A remote sense - voltage point
TP11 PGood_A PGOOD signal of VOUT_A
TP12 VSHARE_A VSHARE_A measurement point. Sensitive signal
TP13 VSHARE_B VSHARE_B measurement point. Sensitive signal
TP14 PGood_B PGOOD signal of VOUT_B
TP15 SYNC External clock input (SYNC IN) or output to synchronize other devices (SYNC OUT)
TP17 Remote Sense Vout B (+) VOUT_B remote sense + voltage point
TP18 VOUT_B VOUT_B sensing test point
TP19 CHA_VoutB Channel A for VOUT_A small signal loop gain measurements (B/A setup)
TP20 CHB_VoutB Channel B for VOUT_A small signal loop gain measurements (B/A setup)
TP21 Remote Sense Vout B (–) VOUT_B remote sense - voltage point
TP23 CNTL CNTL signal on J2 header
TP24 CLK CLK signal on J2 header
TP25 SMBALRT SMBALERT signal on J2 header
TP26 DATA DATA signal on J2 header

Table 4-2 lists the EVM jumpers.

Table 4-2 Jumpers
Jumper Name Description
JP1 AVIN_A AVIN_A input source selection
JP2 AVIN_B AVIN_B input source selection
JP3 EN_A EN_A pin selections
JP4 EN_B EN_B pin selections
JP5 VDD5_A External VDD5_A connection
JP6 VDD5_B External VDD5_B connection
JP7 USB to PVIN Short to connect PVIN to micro USB connector
JP8 PMBus to AVIN Short to connect USB-to-GPIO 3.3V to AVIN

Table 4-3 lists the options for the EN/UVLO pin selections on JP2 and JP4.

Table 4-3 JP3 and JP4 Selections
Shunt PositionSelection
CNTL_INPUTPMBus adapter control signal
UVLOResistor divider to PVIN
DISABLEEN/UVLO short to ground

Table 4-4 lists the options for the AVIN pin selections on JP1 and JP2.

Table 4-4 JP1 and J2 Selections
Shunt Position Selection
AVIN AVIN pin connected to 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 4-5 lists the EVM connector functions.

Table 4-5 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
T1 PVIN VIN+ connector
T2, T3 PGND VIN– connector
T4 AVIN External AVIN connector
T5 VOUT_A VOUT+ connector
T6, T8 PGND VOUT– connector