Switched-Mode Power Supply (SMPS) Solutions

Increase SMPS Solution Efficiency

onsemi delivers industrial power supply solutions leveraging advanced topologies like Totem-Pole PFC and LLC resonant converters, combined with SiC and GaN technologies for superior efficiency and compact design.

Overview

onsemi offers a range of tested solutions to design compact and efficient industrial Switched-Mode Power Supply (SMPS) solutions from 5W to 3kW and beyond. The combination of innovative totem-pole technology with multi-mode PFC control of EliteSiC MOSFETs, Cascode JFETs and GaN HEMTs enables a compact PFC stage with excellent efficiency from low to high load conditions.

The current mode high speed resonant LLC controllers working with EliteSiC MOSFETs, Cascode JFETs and GaN HEMTs enable compact conversion of the output of the PFC stage into the required output voltage, supported by the secondary side synchronous rectification controllers driving our best-in-class medium voltage MOSFETs, powering up to several kWs rating loads. The multi-mode quasi-resonant flyback controllers support designs for lower rating loads up to 200W.

製品

Silicon Carbide (SiC) MOSFETs

Our SiC MOSFETs are designed to be fast and rugged and include system benefits from high efficiency to reduced system size and cost. MOSFETs are metal–oxide–semiconductor field-effect transistors with insulated gates. These silicon carbide MOSFETs have a higher blocking voltage and higher thermal conductivity than silicon MOSFETs, despite having similar design elements. SiC power devices also have a lower state resistance and 10 times the breakdown strength of regular silicon. In general, Systems with SiC MOSFETs have better performance and increased efficiency when compared to MOSFETs made with silicon material.

There are many advantages to choosing SiC MOSFETs over silicon MOSFETs, such as higher switching frequencies. High-temperature development is also not a concern when using SiC MOSFET modules because these devices can operate efficiently even in high heat. Additionally, with SiC MOSFETs, you benefit from a more compact product size because all components (inductors, filters, etc.) are smaller.

Silicon Carbide (SiC) Cascode JFETs
Our high-performance SiC cascode JFETs deliver best-in-class switching speed, lower switching losses, and higher efficiency. They provide high switching frequency and deliver ultra-low on-resistance (RDS (on)) starting at just 5mohm, utilizing less than half the die size of any other technology. Available in both standard thru-hole (including Kelvin) and surface mount packages, they offer excellent cost-effectiveness. These devices utilize a unique cascode configuration, integrating a high-performance SiC fast JFET with a cascode-optimized Si-MOSFET. This innovative approach enables standard gate drive (0-12V) for SiC devices. Given their smaller die size and compatibility with existing driver solutions, the SiC cascode JFETs offer optimized system performance and cost structure.
Low/Medium Voltage MOSFETs
Portfolio of comprehensive range of Low-medium voltage power Mosfets that delivers superior performance and reliability for switching applications. Our cutting-edge PowerTrench® T10 technology delivers industry leading RDS, higher power density, reduced switching losses and better thermal performance.
Silicon Carbide (SiC) Diodes

Our Silicon Carbide diodes use a completely new technology that provides superior switching performance and higher reliability to silicon.

Many people have been using silicon diodes in their machinery, but there is a new option for those looking for better efficiency. SiC diodes are diodes that allow for higher switching performance. They have greater power density and overall increased efficiency. Their reduced energy loss also helps to lower system costs.

Compared to silicon diodes, silicon carbide diodes are more efficient and resistant to high temperatures. They work at high frequencies and higher voltages. Since SiC diodes have faster recovery times than silicon diodes, they're ideal for any kind of current that requires a quick transition from blocking to conducting stages. They also don't get as hot as silicon, allowing them to be used in higher-temperature applications with more efficiency.

Gate Drivers
GaN, IGBT, FET, MOSFET, H-Bridge MOSFET, and SiC MOSFET inverting and non-inverting drivers ideal for switching applications.
Power Factor Controllers
Variable CRM, CCM, and DCM power factor controllers that enable power factor correction.
Offline Controllers
Offline switching controllers; including fixed-frequency flyback & forward PWM controllers, and current mode and voltage mode controllers.
Secondary Side Controllers
Secondary side, synchronous rectification controllers.
Offline Regulators
Offline, switching regulators, including current mode, voltage mode, and gated oscillator devices.
USB Type-C
A product portfolio of USB Type-C devices that include a variety of low power USB Type-C controllers, including those with Power Delivery (PD) protocol.

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Documents

White Papers
Popular Topologies in Offline Power Supplies
White Papers
onsemi EliteSiC 650 V SiC MOSFET M3S Series with Superior Switching Performance
White Papers
3 kW Totem-Pole PFC and Secondary-Side Regulated LLC Power Supply Using SiC MOSFETs
Application Notes
Paralleling SiC Cascode JFETs
Reference Designs
1 kW Universal Input 48 V Output Power Supply Reference Design
White Papers
ブリッジレストーテムポール力率補正による厳しい効率基準への対応
White Papers
SiC Simulations
Reference Designs
240 W UHD Power Supply - CrM Totempole PFC and Current Mode LLC HB Solution
Eval Board: Manual
Ultra High Density and Efficiency 300 W Totempole PFC and HF CM LLC HB Design with 650 V Integrated GaN HEMT
Tutorial
Improving Server and Industrial Power Supplies with SiC JFETs

Evaluation Boards/Kits

Evaluation Board
NCP1681CCM1KWGEVB
CCM Totem pole PFC 1000 W design with Gate driver integrated GaNFETs
Evaluation Board
NCP1681MM500WGEVB
Evaluation Board
NCP1343PD100WGEVB
NCP1343 100 W USB PD Evaluation Board
Evaluation Board
NCP1345PD65WGEVB
NCP1345 USB-PD 65W Evaluation Board
Evaluation Board
SECO-NCP51561BADWR2G-GEVB
Application daughter-card for NCP51561 5 kV isolated half-bridge gate driver

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