SBFS042 June   2020 AFE3010

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      GFCI Application
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Powering The AFE3010
      2. 7.3.2 Sensing Amplifier
      3. 7.3.3 Noise Filter
      4. 7.3.4 ALARM (LED) Driver
      5. 7.3.5 Phase Detection
      6. 7.3.6 SCR Control
      7. 7.3.7 Self-Test Function
        1. 7.3.7.1 Periodic Self-Test
        2. 7.3.7.2 Continuous Self-Test
    4. 7.4 Device Functional Modes
      1. 7.4.1 Pin Configuration
      2. 7.4.2 ALARM Modes to Drive LED
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Manual Self-Test Using PTT Pin
        1. 8.1.1.1 Successful Self-Test
        2. 8.1.1.2 Unsuccessful Self-Test
      2. 8.1.2 ALARM and RESET Function With SW_OPEN
        1. 8.1.2.1 No Self-Test Fail Event
        2. 8.1.2.2 Self-Test Fail Event
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 What to Do and What Not to Do
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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8.1.1.2 Unsuccessful Self-Test

Figure 12 shows an unsuccessful manual self-test timing with the PTT pin.

AFE3010 AFE3010_ptt_unsuccessful.gifFigure 12. Unsuccessful Manual Self-Test Using PTT Pin
  1. The test sequence starts when PTT transitions from high to low.
  2. After a debounce time to ensure there is no false transition, the device starts the self-test.
  3. If the self-test does not pass, the SCR does not fire.
  4. The internal fault counter doesn't reset.
  5. The ALARM signal starts to blink at 0.5Hz (for 60-Hz systems) to indicate the self-test fail.
  6. The PTT signal transitions low to high to complete the self-test event.