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

2.2.2 J2: Line VAC

J2 is a screw terminal allowing access to Line VAC to provide VAC voltage to the device. These rails can be supplied with 90-264 VAC up to 2.5A 50/60Hz. Input AC power-supply connector. Make sure that the AC input power supply is turned off before making the connection to the EVM. The AC supply line lead must be connected to the line pin on the J2 connector, whereas the neutral lead must be connected to the neutral pin on the J10 connector to verify proper operation of the TPS7A78 LDO.

Note: If the AC supply line and neutral leads are flipped when connected to the J2 connector, then the TPS7A78 device GND pin is referenced to the AC supply line and only floating measurement equipment must be used.