TIDT194 August   2020  – MONTH 

 

  1.   Description
  2. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
  3. 2Design Description
  4. 3Efficiency Data
  5. 4Scope Shots
  6. 5Thermal Image
  7. 6Schematic and Assembly Diagram
  8. 7Bill of Materials

Description

This reference design implements the LM74610-Q1 Zero-IQ Reverse-Polarity Protection Smart Diode Controller to control the high-side rectifier MOSFETs for both line and neutral inputs of a 12-VAC to 28-VAC power supply. The design was tested at loads from 7.5-W to 25-W. The use of low RDS(on) MOSFETs with ideal diode drivers eliminates the high losses found in standard diode rectifiers. Applications include video doorbells and smart thermostats that run off the 12-V or 24-VAC transformer of a home or building.

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