Product category:
Discrete Power Devices
News Release from: International Rectifier | Subject: IRF1704
Edited by the Electronicstalk Editorial
Team on 22 August 2001
High-temperature MOSFET handles
automotive stress
International Rectifier has introduced a HEXFET power MOSFET with a maximum temperature rating of 200C in a TO-220 plastic package.
International Rectifier has introduced a HEXFET power mosfet with a maximum temperature rating of 200C in a TO-220 plastic package The IRF1704 is an extremely rugged, low RDS(on) HEXFET power mosfet manufactured using IR's stripe planar technology and is ideal for existing and emerging automotive applications, such as electric power steering (EPS), electro-hydraulic power assisted steering (EHPAS), electric braking and electric valve operation, as well as window lift control, wiper motor and fuel and water pump control circuits
This article was originally published on Electronicstalk on 15 Feb 2001 at 8.00am (UK)
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As ambient temperatures in automotive under-the-hood applications reach as high as 135C, device specifications are becoming increasingly stringent.
Industry-standard automotive mosfets are rated with a 175C maximum junction temperature, and so the IRF1704, rated at 200C, increases device safe operation area.
At high ambient temperatures, the IRF1704 can carry up to 20% more current than similar devices in the same outline.
While all applications can benefit from devices with a higher junction operating temperature, the automotive industry has a more obvious and compelling need for high temperature mosfets.
For example, overload capability over a sustained period is extremely important when the 'park cycle' could be a few minutes, in systems such as EPS and EHPAS.
The IRF1704 can increase safety, reliability and overload survivability in under-hood applications.
Applications with severe stalled-overload and restricted cooling conditions such as window lift control, new wiper motor circuits and fuel and water pump control circuits can also benefit from the new IRF1704.
Other application areas include the electric traction market, including forklift trucks and leisure vehicles.
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