STMicroelectronics AN1485 MDmesh Performance Evaluation Application Note

Presents a new high voltage MOSFET structure which leads to static as well as dynamic performances far ahead conventional Power MOSFET devices. The impact of the particular features of the device is analyzed and quantified in a case study regarding a DC-DC boost converter, which is used in a power factor corrector (PFC) converter. Results obtained from the analysis of the electrical and thermal behavior of the component in the specific are discussed.


STMicroelectronics AN1485 MDmesh Performance Evaluation Application Note - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Application Note
Language
English
Pages
14
File format
PDF
File size
213 KB
Published
06 August, 2012
Updated
01 October, 2023
MD5 checksum
B4492011DB226A59D97FEF6E3113A204

About this manual

This document presents a performance evaluation of the MDmesh high voltage MOSFET structure within a continuous mode Power Factor Corrector (PFC) boost converter. It analyzes the impact of the device's specific features on electrical and thermal behavior compared to conventional Power MOSFETs.

The note details the advantages of MDmesh technology, including reduced on-state resistance and intrinsic capacitances, which enable higher switching frequencies and smaller component sizes. A specific case study of a 200W PFC converter is used to demonstrate these benefits in a practical application.

What's inside

  • Abstract
  • Introduction
  • Trends on Power MOSFET Device Technology
  • Switching Characteristics
  • Intrinsic Body-Drain Diode
  • MDmesh Device in a PFC Converter Application

Specifications

Rated Output Power200W
Output Voltage400V
Input Voltage Range88V up to 264V
Switching Frequency Range100-200kHz
Output Ripple Voltage<16V
Input Power Factor>0.99

Frequently asked questions

What is the main application discussed in this note?

The document focuses on evaluating MDmesh MOSFET performance in a continuous mode PFC boost converter.

What is the rated output power of the PFC converter prototype described in this document?

The prototype converter is designed for a rated output power of 200W.

What is the maximum output voltage rating for the PFC converter design?

The design specifies a maximum output voltage of 450V.

What is the required input power factor for the PFC converter?

The converter must achieve an input power factor greater than 0.99.

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