Product category:
Discrete Power Devices
News Release from: Fairchild Semiconductor | Subject: High-voltage SuperFET MOSFETs
Edited by the Electronicstalk Editorial
Team on 04 May 2005
MOSFETs withstand fast switching
transients
Eight new high-voltage MOSFETs address demanding high-voltage fast-switching applications requiring high efficiency, such as active PFC, lighting and AC/DC power supply systems.
Fairchild Semiconductor has released eight new high-voltage SuperFET MOSFETs specifically designed to address demanding high-voltage, fast-switching applications requiring high efficiency, such as active power factor correction (PFC), lighting and AC/DC power supply systems SuperFET technology minimises conduction losses and increases switching performance by lowering on-resistance and gate charge
This article was originally published on Electronicstalk on 28 Feb 2001 at 8.00am (UK)
Related stories
Dual-output buffer for DDR SDRAM modules
Fairchild Semiconductor has introduced a dual-output registered buffer for 184-pin, 2.5V PC200/PC266, 72bit-wide registered double data rate (DDR) SDRAM modules.
Bus hold makes logic more predictable
Fairchild Semiconductor has made a number of additions to its LCX family, the logic industry standard for 3.3V applications.
This technology is designed to withstand both high-speed voltage (di/dt) and current (dv/dt) switching transients, allowing the devices to operate reliably at higher frequencies.
The new SuperFET family also has repetitive avalanche energy ratings that are an order of magnitude higher than alternative solutions.
These features, combined with a maximum gate-to-source voltage rated at +/-30V (50% higher than competing devices), allow SuperFETs to provide improved ruggedness that makes them more reliable in high-voltage applications.
Further reading
Controller and switch combine to cut PSU chipcount
New from Fairchild Semiconductor, the FSDH0165 power switch combines a voltage-mode PWM controller and SenseFET power switching element in a single 8-lead package.
PLL clock drivers target high-speed clocking
Two low voltage PLL clock drivers designed for use in high-speed memory clocking applications are now available from Fairchild Semiconductor.
"As the breakdown voltage of a standard MOSFET rises, the on-resistance goes up exponentially and leads to increased die size, a tradeoff that creates a challenge for designers", said JongMin Na, Fairchild's Marketing Manager, Power Supply and Industrial Power Applications, Power Discrete Group.
"Fairchild's new SuperFET technology changes the relationship of the on-resistance from being exponential to linear".
"This solution allows the device to achieve a very impressive on-resistance and small die size at a 600V breakdown voltage, which results in improved efficiency in end-applications".
The reliability provided by SuperFET technology is a particularly important benefit in transient-prone applications such as high intensity discharge (HID) lighting ballasts and power supplies for plasma display panel (PDP) televisions.
The minimisation of conduction losses that SuperFETs offer are important to lighting manufactures who increasingly seek ways to conserve energy to meet PFC requirements.
Similarly, demanding applications like AC/DC power supplies for plasma TVs rely on designs that offer reliability and efficiency to ultimately lower system costs.
In power supply applications, for example, the SuperFETs' low on-resistance diminishes power losses, allowing designers to eliminate the need for expensive cooling systems, thus saving space in designs.
The SuperFETs' low gate charge also makes them easier to drive and allows them to switch on/off at faster rates to increase efficiency.
SuperFETs come in a variety of packages including TO-220, TO-220F, TO-263 (D2Pak), TO-247 and TO-3P.
These products are lead-free (Pb-free) and meet or exceed the requirements of the joint IPC/JEDEC standard J-STD-020B and are compliant with European Union requirements now in effect.
• Fairchild Semiconductor: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
