
Catalog
600V Linear MOSFET
Key Features
• * High Current &>200V>100msec
• * Used as a variable power resistor
• * Soft start application (limit surge currents)
• * Linear amplifier circuit
• * Active loads above 200 volts such as DC dynamic loads for testing power supplies, batteries, fuel cells, etc.
• * High voltage, high current constant current sources.
Description
AI
What is a Linear MOSFET?
A MOSFET specifically designed to be more robust than a standard MOSFET when
operated with both high voltage and high current near DC conditions (>100
msecs).
The Problem with SMPS MOSFETs
MOSFETs optimized for high-frequency SMPS applications have poor high voltage
DC SOA. Most SMPS-type MOSFETs overstate SOA capability at high voltage on the
datasheets. Above ~30V and DC conditions, SOA drops faster than is indicated by
Power Dissipation (PD) limited operation. For pulsed loads (t <10 ms), there
is generally no problem using a standard MOSFET.
Technology Innovation
Introduced in 1999, Microchip modified its proprietary patented self-aligned
metal gate MOSFET technology for enhanced performance in high voltage, linear
applications. These linear MOSFETs typically provide 1.5–2.0 times the DC SOA
capability at high voltage compared to other MOSFET technologies optimized for
switching applications.