SLUUCZ3A July   2024  – March 2025 TPS546E25

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Test Setup
      1. 2.1.1 Test and Configuration Software
        1. 2.1.1.1 Description
        2. 2.1.1.2 Features
      2. 2.1.2 Test Equipment
        1. 2.1.2.1 Voltage Source
        2. 2.1.2.2 Multimeters
        3. 2.1.2.3 Output Load
        4. 2.1.2.4 Oscilloscope
        5. 2.1.2.5 Fan
        6. 2.1.2.6 USB-to-GPIO Interface Adapter:
        7. 2.1.2.7 Recommended Wire Gauge
      3. 2.1.3 Tip and Barrel Measurement
      4. 2.1.4 List of Test Points, Jumpers, and Connectors
      5. 2.1.5 Configuring EVM to Overdrive VDRV
    2. 2.2 Best Practices
  9. 3Software
    1. 3.1 EVM Configuration Using the Fusion GUI
      1. 3.1.1 Configuration Procedure
    2. 3.2 Using the Fusion GUI
      1. 3.2.1 Opening the Fusion GUI
      2. 3.2.2 Changing ON_OFF_CONFIG
      3. 3.2.3 SMBALERT# Mask
      4. 3.2.4 All Config
      5. 3.2.5 Pin Strapping
      6. 3.2.6 Monitor
      7. 3.2.7 Status
  10. 4Implementation Results
    1. 4.1 Test Procedure
      1. 4.1.1 Line and Load Regulation and Efficiency Measurement Procedure
      2. 4.1.2 Efficiency Measurement Test Points
      3. 4.1.3 Control Loop Gain and Phase Measurement Procedure
    2. 4.2 Performance Data and Typical Characteristic Curves
      1. 4.2.1 Efficiency
      2. 4.2.2 Transient Response
      3. 4.2.3 Control Loop Bode Plot
      4. 4.2.4 Output Ripple
      5. 4.2.5 Control On
      6. 4.2.6 Control Off
      7. 4.2.7 Control On With Prebiased Output
      8. 4.2.8 Thermal Image
  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. 6.1 Trademarks
  13. 7Revision History

2.1.4 List of Test Points, Jumpers, and Connectors

Table 2-1 lists the test point functions.

Table 2-1 Test-Point Functions
Test Point Type Name Description
AGND T-H Loop AGND Connection to AGND pour and AGND pin
CHB T-H Loop CHB BODE-CH2
CLK T-H Loop CLK Connection to CLK
CNTL T-H Loop CNTL Test-point connection to CNTL pin
DATA T-H Loop DATA Connection to DATA
FB T-H Loop FB Test-point connection to VSEL/FB pin
GND_EFF T-H Loop GND_EFF Kelvin connection to GND for efficiency measurement
GND_RMT T-H Loop GND_RMT Connection for measuring regulation
GND_1 T-H Loop GND_1 Connection to PGND 1
GND_2 T-H Loop GND_2 Connection to PGND 2
GND_3 T-H Loop GND_3 Connection to PGND 3
GOSNS T-H Loop GOSNS Connection to GOSNS pin
PG T-H Loop PG Test-point connection to PGOOD pin
PVIN_SNS+ T-H Loop PVIN_SNS Kelvin sense connection to PVIN
PVIN_SNS- T-H Loop PGND_SNS Kelvin sense connection to PGND
SMBALRT T-H Loop ALERT Connection to SMB_ALERT
SW T-H Loop SW Test-point connection to SW pin
SW_SMB SMB SW SMB connection to the SW node
VCC T-H Loop VCC Measurement point for VCC
VDRV T-H Loop VDRV Connection to VDRV pin
VOSNS T-H Loop VOSNS Connection to VOSNS pin and BODE-CH1
VOUT_EFF T-H Loop VO_EFF Connection for measuring efficiency
VOUT_RMT T-H Loop VOUT_RMT Connection for measuring regulation
VOUT_SMB SMB VOUT SMB connection to the Vout node

Table 2-2 lists the EVM jumpers.

Table 2-2 Jumpers
Jumper Type Name Description
J6 Header (shrouded), 100mil, 5x2, Gold, TH PMBus connection PMBus adapter control signal
J7 Header, 2.54mm, 3x1, Tin, TH VDRST Jumper for setting VDRST default pins 1 – 2 shorted
J12, J14, J15 Header, 2.54mm, 5x2, Gold, TH MSEL1, ADDR,VSEL Jumper for setting MSEL1, ADDR, VSEL default pins 7 – 8, 1 – 2, 5 – 6 shorted
J13 Header, 2.54mm, 12x2, Gold, TH MSEL2 Jumper for setting MSEL2 default pins 11 – 12 shorted
J19 Header, 2.54mm, 2x1, Gold, TH PG_PULLUP Connect RESET to pullup resistor default pins 1 – 2 shorted
J20 Header, 2.54mm, 2x1, Gold, TH SMB Conn. Jumper for setting SMB Connection default pins 1 – 2 shorted
JP2 Header, 100mil, 3x2, Gold, TH CNTL Jumper for setting CNTL default pins 3 – 4 shorted

Table 2-3 lists the options for the CNTL/UVLO pin selections on J6.

Table 2-3 J6 Selections
Shunt Position Selection
Pin 1 to 2 shorted PMBus adapter control signal
Pin 3 to 4 shorted Resistor divider to PVIN default pins 3 – 4 shorted

Table 2-4 lists the EVM connector functions.

Table 2-4 Connector Functions
Connector Type Name Description
J1 1mm Uninsulated Shorting Plug, 10.16mm spacing, TH PGND Ground connection
J4 Card Edge Socket, 0.8mm, 10x2, SMT VOUT Connection for miniSlammer
J5 Card Edge Socket, 0.8mm, 10x2, SMT VOUT Connection for miniSlammer
J6 Header (shrouded), 100mil, 5x2, Gold, TH USB2GPIO Connection for USB2GPIO2
J18 Terminal Block, 60A, 10.16mm Pitch, 2-Pos, TH VOUT Connection for load
T1 Terminal Block, 5mm, 2-pole, Tin, TH VIN Connection for Input voltage source
T2 Terminal Block, 5mm, 2-pole, Tin, TH GND Connection for Input GND source
T4 Terminal Block, 3.5mm Pitch, 2x1, TH EXTBIAS Connection for external bias supply