Product category: Discrete Power Devices
News Release from: Fairchild Semiconductor | Subject: FDD4141
Edited by the Electronicstalk Editorial Team on 15 February 2008
P-channel MOSFET has negative attributes
The FDD4141 offers low on-resistance and 50% lower gate charge compared with current generation MOSFETs.
Fairchild Semiconductor has developed a fast-switching solution that reduces switching losses by half with its 40V P-channel PowerTrench MOSFET The FDD4141 offers low on-resistance and 50% lower gate charge compared with current generation MOSFETs
This article was originally published on Electronicstalk on 28 Feb 2001 at 8.00am (UK)
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This allows asynchronous buck, battery charging and inverter switching applications, found in portable, computing, consumer and home entertainment products, to switch at higher speeds without suffering the penalty of excessive heat.
Fast switching is a requirement in applications such as step-down convertors that need to switch at several hundred kilohertz.
Although other MOSFET solutions can switch at higher frequencies, these solutions have a higher gate charge, which causes more heat and less efficiency.
The FDD4141 is fabricated using Fairchild's proprietary PowerTrench process technology, which makes it possible to put die with higher load currents into smaller packages.
PowerTrench technology takes the characteristics of the N-channel MOSFET and applies it to the P-channel MOSFET.
The P-channel MOSFET can assume performance of an N-channel MOSFET displaying lower on-resistance and lower gate charge and hence, higher efficiency, while being able to switch at several hundred kilohertz to meet the switching demands of step-down convertors.
Fairchild's FDD4141 is part of a comprehensive portfolio of PowerTrench MOSFETs that are instrumental in achieving energy efficiency by meeting the electrical and thermal performance requirements for today's electronics.
Fairchild's advanced-performance PowerTrench MOSFET process technology yields exceptionally low values for Miller Charge (QGD), on-resistance and total gate charge - enhancements that result in superior switching performance and thermal efficiencies when used in synchronous buck applications.
The FDD4141 uses lead-free (Pb-free) terminals and has been characterised for moisture sensitivity in accordance with the Pb-free reflow requirements of the joint IPC/JEDEC standard J-STD-020.
Pricing begins at US $0.84 in 1000-unit quantities.
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