SBVU068 august   2023 TPS7A78

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Setup
      1. 2.1.1 Full-Bridge (FB) Test Equipment Connection
      2. 2.1.2 Half-Bridge (HB) Test Equipment Connection
    2. 2.2 Jumper Information
      1. 2.2.1  J1: LDO_IN
      2. 2.2.2  J2: Line VAC
      3. 2.2.3  J3: LDO_OUT
      4. 2.2.4  J4: LDO_IN Sense
      5. 2.2.5  J5: SCIN
      6. 2.2.6  J6: LDO_OUT Sense
      7. 2.2.7  J7: LDO_OUT/GND
      8. 2.2.8  J8: LDO_IN/GND
      9. 2.2.9  J9, J11, J13: GND
      10. 2.2.10 J10: Neutral VAC
      11. 2.2.11 J12: Second Surge Resistor Jumper
      12. 2.2.12 J14: Full-Bridge (FB) and Half-Bridge(HB) Configurations
      13. 2.2.13 J15: LDO Pin test header
      14. 2.2.14 J16 and J18: Power-Good (PG) and Power-Fail (PF) Signals
      15. 2.2.15 J17: Coin Cell Buffer VCC Jumper
    3. 2.3 Test Points
  7. 3Implementation Results
    1. 3.1 Performance Data and Results
  8. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  9. 5Compliance Information
    1. 5.1 Compliance and Certifications
      1. 5.1.1 Passing Pre-Compliance Conducted Emission Test Results Using Capacitors and Resistors in the Input Filter
      2. 5.1.2 Passing Pre-Compliance Conducted Emission Test Results Using Capacitors, Resistors and Inductors in the Input Filter
    2. 5.2 Surge Testing
    3. 5.3 EFT Compliance
    4. 5.4 ESD Compliance
  10. 6Additional Information
    1. 6.1 Trademarks

2.2.12 J14: Full-Bridge (FB) and Half-Bridge(HB) Configurations

This EVM comes configured for half-bridge (HB) configuration usage, when J14 jumper is connected. However, to use the full-bridge (FB) configuration, leave jumper J14 open. HB configuration is achieved by tying VAC neutral to the TPS7A78 device GND pin, whereas in FB configuration VAC neutral is connected to the AC– pin and the device GND pin tracks VAC neutral and therefore must be floating.