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Posts Tagged ‘MOSFET’

App note: Recommendations to avoid short pulse width issues in HVIC gate driver applications

Sunday, September 16th, 2018

Application note from ON Semiconductors discussing possible abnormalities on High voltage gate driver when operating on short pulses. Link here (PDF) The High−Voltage Integrated Circuit (HVIC) gate driver family is designed to drive an N−channel MOSFET or IGBT up to 600 V. One of the most common methods to supply...

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App note: Low-side self-protected MOSFET

Sunday, July 8th, 2018

Integrated fault protected MOSFET app note from ON Semiconductors. Link here (PDF) The ever increasing density and complexity of automotive and industrial control electronics requires integration of components, wherever possible, so as to conserve space, reduce cost, and improve reliability. Integration of protection features with power switches continues to drive...

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App note: Intelligent power switches for 48 V battery applications

Sunday, November 12th, 2017

Application note on controling Intelligent Power Switches (IPS) from STMicroelectronics. Link here (PDF) For the last 15-20 years, the automotive electronics market has been moving from electromechanical relays to solid state components for driving all kind of loads. It is obvious why: solid state components are smaller in size, lighter,...

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App note: Using trench technology MOSFETs in hot swap applications

Sunday, September 17th, 2017

Safely use trench MOSFETs on hot swap application by determining its operation within its SOA in a limited time, app note from International Rectifier. Link here (PDF) Hot Swap circuits are used to allow for “Hot Plugging” of circuit boards into back planes. The applications that require such functionality are...

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App note: Driving MOSFET and IGBT switches using the Si828x

Sunday, August 13th, 2017

App note from Silicon Labs on their MOSFET and IGBT driver Si828x and how to determining its external components to achieve optimized performance. Link here (PDF) The Si828x products integrate isolation, gate drivers, fault detection protection, and operational indicators into one package to drive IGBTs and MOSFETs as well as...

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App note: Gate drive characteristics and requirements for HEXFET power MOSFETs

Sunday, August 6th, 2017

App note from International Rectifier on driving their Power MOSFETs. Link here (PDF) The conventional bipolar transistor is a current-driven device. A current must be applied between the base and emitter terminals to produce a flow of current in the collector. The amount of a drive required to produce a...

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App note: Linear power MOSFETS basic and applications

Sunday, July 16th, 2017

Some examples of power MOSFETS application from this app note from IXYS Corporation. Link here (PDF) Applications like electronic loads, linear regulators or Class A amplifiers operate in the linear region of the Power MOSFET, which requires high power dissipation capability and extended Forward Bias Safe Operating Area (FBSOA) characteristics....

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App note: Operation evaluation of ultra low ON resistance MOSFET supporting quick charge for 1 cell Lithium ion battery protection

Sunday, January 15th, 2017

ON semiconductor's application note on faster charging of Lithium Ion batteries with consideration on heat suppression. Link here (PDF) Currently, because LiB (Lithium Ion Battery) is superior in current density and electromotive force, it becomes mainstream of batteries for mobiles such as smart phone. However, because LiB is weak at...

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App note: Application precautions: Power MOSFET application notes

Sunday, January 15th, 2017

Toshiba's application note on the things to consider when picking a power MOSFET. Link here (PDF) This document explains selecting MOSFETs and what we have to consider for designing MOSFET circuit, such as temperature characteristics, effects of wire inductance, parasitic oscillations, avalanche ruggedness, and snubber circuit.

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Failure analysis of a dead MOSFET and a power diode

Wednesday, June 29th, 2016

[embed]http://www.youtube.com/watch?v=QWK_uPPZBJg[/embed] This video discusses the failure analysis of a MOSFET and power diode by Electronupdate.

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App note: Power MOSFET in high-side operating modes, possible failure modes, and failure signatures

Saturday, January 2nd, 2016

App note from Vishay on high-side MOSFET failures investigation leads to one of the following modes of operation: (a) High-impedance gate drive (b) Electro-static discharge (ESD) exposure (c) Electrical over-stressed (EOS) operation More on it here (PDF) Power MOSFET failures in high-side applications can often be attributed to a high-impedance...

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App note: Power MOSFET Basics: Understanding the Turn-On Process

Saturday, January 2nd, 2016

More to know about MOSFET gate threshold voltages, an application note from Vishay. Link here (PDF) The question of how to turn on a MOSFET might sound trivial, since ease of switching is a major advantage of field-effect transistors. Unlike bipolar junction transistors, these are majority carrier devices. One does...

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App note: Selection of three locations of current sense resistor in buck converter

Sunday, November 29th, 2015

Sensing current utilizing MOSFET's Rds(on) and Inductor's DCR in different location discussed in this app note from Alpha and Omega semiconductor. Link here (PDF) In current mode converters, current sense resistor can be placed in three locations: input loop, output loop and freewheeling loop. The pros and cons are discussed...

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App note: Paralleling power MOSFETs in switching applications

Sunday, November 29th, 2015

Application note from Alpha and Omega semiconductor on proper design of circuit and PCB layout to balance parallel MOSFETs. Link here (PDF) This paper discusses issues involved in paralleling MOSFETs in high-power, high-frequency switching applications. It investigates root cause problems such as unbalanced voltage and current by taking a closer...

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App note: Performance restrictions associated with 3.5 watts SO-8 power MOSFETs

Sunday, September 6th, 2015

Old app note from Fairchild Semiconductors on SO-8 power MOSFETs' power handling. Link here In applications requiring high current and small footprint electronic switches, a Power MOSFET packaged in an SO-8 is usually the best choice. This is because the combination offers low on-resistance and reasonable power handling. A second...

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App note: Medium power small-signal MOSFETs in DC-to-DC conversion

Sunday, January 25th, 2015

App note(PDF) from NXP on DC-DC medium power small-signal MOSFETs. This application note explores different methods of DC-to-DC conversion. It includes some examples of DC-to-DC down-converters using small-signal MOSFETs.

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Simple constant current driver for a high power LED

Monday, September 8th, 2014

Elmars Ositis has been working on a simple constant current driver: In my previous post, I slapped together a quick LED lighting solution for my workbench… but it is truly a hack. What I really want to do is make a simple constant current driver, so the power LEDs can be...

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DIY 60W adjustable electrical load

Friday, August 22nd, 2014

A DIY 60W adjustable electrical load project from Electro-Labs: In this project, we are building a useful board which should take place on your bench. It is an adjustable electrical load which can sink up to 5A @ 60W continuously. This board will come to aid when you need to draw...

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App note: How P-Channel MOSFETs Can Simplify Your Circuit

Sunday, March 30th, 2014

An app note from International Rectifier on using P-Channel MOSFETs P-Channel HEXFET Power MOSFETs offer the designer a new option that can simplify circuitry while optimizing performance and parts count. In principle, nothing can be done with a P-Channel MOSFET that cannot be done with an N-Channel plus some extra...

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App note: Power MOSFET Basics

Sunday, March 23rd, 2014

App note from International Rectifier on Power MOSFET Basics This application note discusses the breakdown voltage, on-resistance, transconductance, threshold voltage, diode forward voltage, power dissipation, dynamic characteristics, gate charge and dV/dt capability of the power MOSFET.

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  • readybrek: Anyone got a any recommendations for a budget-priced hot air station?
  • William: lol I'm happy to waste 3c for each program/debug cycle... but probably not the time spent soldering a new device down to a proto board!...
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