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FAN3228T PDF预览

FAN3228T

更新时间: 2024-10-28 10:27:27
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 驱动器栅极栅极驱动
页数 文件大小 规格书
12页 459K
描述
Application Review and Comparative Evaluation of Low-Side Gate Drivers

FAN3228T 数据手册

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AN-6069  
APPLICATION NOTE  
Conclusion  
Low-side drivers are used to drive power MOSFETs in  
applications including clamped inductive load switching,  
synchronous rectifier circuits, and pulse/gate transformer  
drive circuits. The relationship of gate drive current to the  
MOSFET switching and transition intervals has been  
detailed during the prominent MOSFET switching intervals.  
Potential driver solutions; including discrete components,  
integrated PMOS/NMOS, and compound drivers, were  
examined. Some of the non-ideal characteristics of the  
various driver circuits were highlighted.  
There is not a simple unified method to characterize the  
output current sink and source capability of the many types  
of drivers available. The test circuits presented in this note  
can be used to investigate the VOUT vs. IOUT capability of  
discrete and integrated circuit drivers, enabling evaluation  
and comparison of drivers for a range of applications.  
References  
[1] 2006 Fairchild Power Seminar Topic, “Understanding Modern Power MOSFETs,” available on the fairchildsemi.com website at the link:  
http://www.fairchildsemi.com/powerseminar/pdf/understanding_modern_power_mOSFETs.pdf  
[2] Oh, K. S., “MOSFET Basics”, July, 2000, available as AN9010 from the fairchildsemi.com website.  
[3] Balogh, L. “Design and Application Guide for High Speed MOSFET Gate Drive Circuits,” Power Supply Design Seminar SEM-1400, Topic 2,  
Texas Instruments Literature No. SLUP169.  
[4] ICE Components Gate Drive Transformer Datasheet “GT03.pdf” dated 10/06, available from www.icecomponents.com.  
[5] 2006 Fairchild Power Seminar Topic, “Practical Power Application Issues for High Power Systems,” available on the fairchildsemi.com website at the  
link: http://www.fairchildsemi.com/powerseminar/pdf/practical_power_high_power_systems.pdf  
[6] Johnson, H. Dr, “High-Speed Digital Design On-Line Newsletter,” Vol. 3 Issue 8, www.sigcon.com/Pubs/news/3_8.htm  
Author  
Mark Dennis was born in Troy, NC, and received the Bachelor of Engineering degree from Duke University in 1983. After  
graduation he has worked in industries encompassing power electronics applications such as offline and DC to DC power  
supply design for telecom and computer systems, high voltage supplies for electrostatic precipitators, and online UPS  
systems. For over eight years Mark has been working in the semiconductor industry and he is employed by Fairchild  
Semiconductor as a Staff Engineer working in High Power Systems.  
© 2007 Fairchild Semiconductor Corporation  
Rev. 1.0.3 • 1/6/10  
www.fairchildsemi.com  
10  

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