Product category:
Discrete Power Devices
News Release from: Fairchild Semiconductor | Subject: Stealth diode pairs
Edited by the Electronicstalk Editorial
Team on 30 May 2001
Dual packaging for Stealth soft recovery
diodes
Fairchild Semiconductor has packaged its Stealth soft recovery diodes in pairs for improved efficiency with reduced space in switch mode power supplies.
Fairchild Semiconductor has packaged its Stealth soft recovery diodes in pairs for improved efficiency with reduced space in switch mode power supplies Stealth diode technology combines high speed and soft recovery characteristics to achieve higher efficiency and lower EMI
This article was originally published on Electronicstalk on 28 Feb 2001 at 8.00am (UK)
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Packaging two Stealth diodes in industry standard TO-220A and TO-247 packages reduces PC board space and simplifies assembly.
A diode's performance in a switch mode power supply is characterised by switching times.
Stealth technology combines fast recovery (less than 25ns for ISL9K860P3) switching with a softness factor that exceeds 2.5 (ISL9K860P3) for improved efficiency in high-frequency, hard-switched applications.
The soft recovery minimises ringing, expanding the range of conditions under which the diode may be operated without the use of additional snubber circuitry, while reducing EMI and improving system reliability.
Stealth diodes can be used as a boost diode in power factor correction circuits, and as a free wheeling diode in uninterruptible power supplies, motor drives and SMPS.
These applications frequently require a pair of diodes having a common cathode configuration.
Forward current ratings of 2 x 8, 2 x 15 and 2 x 30A with common cathode connection are available in TO-220A and TO-247 packages with a maximum junction temperature up to 175C.
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