Power supply and inverter designers must comply with standards and market demands for higher efficiency, smaller form factors, and more durable converters. ST has recently added silicon carbide diodes alongside its consolidated range of Schottky and ultrafast bipolar to ensure that designers find the right devices for their application.
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Different types of diodes and rectifiers:
When selecting a device for a specific application, it is important to consider criteria beyond current and voltage ratings, such as the low voltage drop of power Schottky diodes or the suitability of field effect rectifiers at certain current densities and voltages. Silicon carbide and ultrafast bipolar diodes are ideal for heavy-duty, high-voltage converter applications, with silicon carbide diodes having virtually no recovery losses and ultrafast bipolar diodes offering increasingly softer recovery iterations. Bridge diodes ensure rugged operation, while signal Schottky diodes offer high accuracy in various applications.
3 advantages with ST diodes
The ST range of Schottky, SiC, and ultrafast diodes ensures three strategic advantages for fast and easy design.
Across-the-board efficiency
- Wide coverage for SMPS and inverter applications through a wide range of voltages: 15-200 V for Si Power Schottky (STPS) with 175°C Tj.
- Field effect rectifier diodes (FERD) 40-100 V can replace Schottky diodes in some demanding efficiency designs.
- 650V and 1200V Si Ultrafast Turbo 2 High Temp (STTH) available, as well as new soft subranges.
- 650 V and 1200 V extremely fast and efficient SiC diodes Power Schottky (STPSC) with 175°C Tj.
- Current ratings equally cover the field with a common 1-60 A range and up to 240 A for Ultrafast diodes.
- All devices designed and manufactured by ST.
Performance packages
ST implements optimized processes for attaching high performance and efficiency dice to packages that improve thermal performance. ST offers a very wide range of industry-standard packages, with recent emphasis on power SMD (30A FERD in a DPAK) and high-voltage SMD (STBR3008G2Y bridge rectifier in HV D2PAK). They target demanding applications from fast-charging adaptors to servers SMPS to electric vehicles chargers.
Proven robustness
Our industrial and automotive grade diodes are manufactured to the same quality standards required for automotive-grade (AEC-Q101) qualification. This proven process robustness across the ST diode range ensures high reliability in electronic circuits based on these devices.
Simulation and finder apps to speed up designs
Rectifier diode simulator in eDesignSuite:Our Schottky & FERD eTool allows designers to evaluate the field-effect rectifier or Schottky diode that best fits their application using the user waveform-driven inputs. It returns I-V curves according to design conditions and evaluation of the available headroom. It includes a powerful search engine to help SMPS designers and component engineers select the best rectifier or diode for their application.
ST Diode Finder:
This online simulator includes a detailed parametric search engine, a fast view of the most important electrical parameters, and more.
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New ultrafast and power Schottky diodes deliver high power in 1.1 mm high, extra-slim package
In addition to having a low forward voltage drop and avalanche capability, these ultrafast and Schottky barrier rectifiers, which are rated from 30 to 200 V with a current rating from 5 to 12 A, help ensure greater compactness of equipment, with increased power density and efficiency, in a large range of applications including car modules, industrial equipment, telecom power systems and personal electronics.
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