COMPARING TRENCH AND PLANAR SCHOTTKY RECTIFIERS
What is the ideal rectifier for fast switching applications?
Discrete power rectifiers used in asynchronous switch mode power supplies play a decisive role in the efficiency and reliability of the complete system. Discover how Trench Schottky rectifiers combine low switching losses and high thermal performance
For many systems and specifically power conversion circuits, the planar Schottky barrier diode has been a design mainstay for a long time. However, planar diodes impose a trade-off in key performance characteristics such as forward voltage drop and leakage current.
Similarly, in high frequency applications, traditional Schottky diodes are far from the ideal lossless and instantaneous rectifier solution we would love to use.
Nexperia’s Trench Schottky rectifier family achieves a well-balanced trade-off between Vf and IR. Compared to equivalent planar diodes, the Trench devices have a wider safe operating area (SOA). With robustness against thermal runaway, this makes them ideal in applications which experience higher ambient temperatures. Additionally, Trench rectifiers have much less stored charges (Qrr) and are the right choice for high frequency applications.
Download this whitepaper and learn how maximum efficiency of switch-mode power converters starts with choosing the right diode technology. It will help you to:
- Understand the differences between Planar and Trench Schottky technology
- See how the SOA thermal advantage of Nexperia’s Trench Schottky rectifiers proves useful in applications where higher ambient temperatures have to be tolerated
- Discover the impact of the lower Qrr of Trench Schottky on the efficiency of a 48V/12V switch-mode converter.
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