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

2.2.15 J17: Coin Cell Buffer VCC Jumper

J17 contains a jumper that allows the VCC pin of the buffer to be connected to the coin cell footprint placed on this layout. This allows battery supply to the buffer for clean regulated power.

Note: When an external DC voltage is used to pullup the PG and PF pins, this external supply must be a floating supply when FB configuration is used. For HB configuration, the device GND can be tied to Earth-GND, and the external pullup supply can be referenced to the device GND.