SBFS042 June   2020 AFE3010


  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      GFCI Application
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions
  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. 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. Periodic Self-Test
        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. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Manual Self-Test Using PTT Pin
        1. Successful Self-Test
        2. Unsuccessful Self-Test
      2. 8.1.2 ALARM and RESET Function With SW_OPEN
        1. No Self-Test Fail Event
        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. 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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Pin Configuration and Functions

RGT Package
16-Pin VQFN
Top View
AFE3010 AFE3010_PinOut.gif

Pin Functions

1 SW_OPEN Input Controls ALARM pin while asserted low. Refer to Table 3 for more details.
2 VDD1 Power Power supply to the part from rectifying diode through series resistor. There is also a decoupling cap at this pin.
3 VDD2 Power Redundant power supply pin.
4 GND Ground Ground pin for the device.
5 NG_OUT Output Generates a pulse to start the Ground to Neutral fault detection scheme. Drives the secondary winding of the 200:1 transformer through an AC-coupled capacitor. Leave this pin floating if Neutral-GND fault detection is not needed.
6 SCR Output Current output pin that drives the SCR after a fault is detected.
7 ALARM Output Alarm/ LED driver output. Drives a 3-KHz signal that can be used to drive an LED or buzzer to indicate that the self-test failed. Can be configured as secondary SCR driver when a 500-KΩ resistor is connected between SEL pin and ground. Refer to Table 2 for more details.
8 FT Output Drives the base of a bipolar transistor to emulate fault event during self-test.
9 SCR_TST I/O Monitors the phase of the sine wave of HOT power line after the solenoid. Drives a weak HIGH output during SCR self-test. Clamped to VDD through an internal diode.
10 PH Input Monitors the phase of the sine wave of HOT power line. Clamped to VDD through an internal diode.
11 SEL Input Control pin to configure the device. Refer to Table 2 for more details.
12 PTT Input Active-low push-to-test pin. Starts self-test and fires SCR if self-test passes.
13 OUT Output Amplifier output node.
14 FB Input Amplifier inverting input.
15 REF I/O Amplifier non-inverting input. Typically 2.5 V derived from an internal 5-V regulator.
16 GND Ground Ground pin for the device.