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LATEST NEWS / PRODUCT & TECHNOLOGY / Si2 Min Read
WeEn Semiconductors announced an expansion to its range of high-performance and rugged IGBTs. Offering voltage ratings of 650V and 1200V, the new devices incorporate a fast recovery anti-parallel diode and boast extremely low leakage currents and exceptional conduction and switching characteristics at both high and low junction temperatures.
Based on an advanced fine trench gate field-stop (FS) technology, the new IGBTs provide a more uniform electric field within the chip, support higher breakdown voltages and offer improved dynamic control. By offering the optimum trade-off between conduction and switching losses, as well as an enhanced EMI design, the devices will maximize efficiency in a wide variety of mid- to high-switching-frequency power conversion designs.
The new IGBTs offer ratings of 650V/75A, 1200V/40A and 1200V/75A and are supplied in TO247 or TO247-4L packages depending on the selected device. All of the devices will operate with a maximum junction temperature (Tj) of 175 °C and have undergone high-voltage H3TRB (high-humidity, high-temperature and high-voltage reverse bias) and 100%-biased HTRB (high-temperature reverse bias) tests up to this maximum.
Target applications for the new WeEn IGBTs include solar inverters, motor control systems, uninterruptible power supplies (UPS) and welding. A positive temperature coefficient simplifies parallel operation in applications where higher performance is required, while options for bare die, discrete and module product variants provide flexibility for a wide variety of target designs.
Original – WeEn Semiconductors
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LATEST NEWS / PRODUCT & TECHNOLOGY / Si3 Min Read
The latest onsemi 7th generation 1200V QDual3 Insulated Gate Bipolar Transistor (IGBT) power modules offer increased power density and deliver up to 10% more output power than other available competing products. Based on the latest Field Stop 7 (FS7) IGBT technology, the 800-amp (A) QDual3 module delivers industry-leading efficiency to reduce system costs and simplify designs.
In a 150KW inverter, the QDual3 module will dissipate 200 watts (W) less in losses compared to the closest competition, significantly reducing heatsink size. QDual3 is engineered to work under harsh conditions and is ideal for high-power electronics converters such as central inverters in solar farms, energy storage systems (ESS), commercial agricultural vehicles (CAVs) and industrial motor drives.
Currently, two products are available depending on the applications – NXH800H120L7QDSG and SNXH800H120L7QDSG.
Increasing renewable energy adoption amplifies the need for solutions that can manage peak demand and ensure continuous power supply. Peak shaving, the practice of reducing electricity use during peak hours, is essential for maintaining electric grid stability and reducing costs. Using the QDual3 modules, manufacturers can construct a solar inverter and ESS that output more power in the same system size, enabling more efficient energy management and storage capabilities, and allowing for a smoother integration of solar power into the grid.
The modules also mitigate the intermittency of solar energy by storing excess power in an ESS, ensuring a reliable and consistent energy flow. For large systems, the modules can be paralleled to increase the output power up to a couple of MWs and compared to traditional 600 A module solutions, the 800 A QDual3 significantly reduces the module quantity, greatly simplifying design complexity and cutting system costs.
The QDual3 IGBTs module features an 800 A half-bridge configuration that integrates the latest Gen7 trench Field Stop IGBT and diode technology using onsemi’s advanced packaging techniques to reduce switching and conduction losses.
With FS7 technology, the die size is reduced by 30%, allowing more die per module, increasing the power density to enable the maximum current capacity up to 800 A or higher. With an IGBT Vce(sat) as low as 1.75V (175°C) and low Eoff, the 800 A QDual3 module dissipates 10% lower energy losses than the next-best alternative. The modules also meet the stringent standards required of an automotive application.
“Increased electrification of commercial fleets such as trucks and busses and the need of renewable energy sources demand solutions that can generate, store and distribute power more efficiently. Transferring energy from renewable sources to the grid, storage systems and to downstream loads with the lowest power losses possible is increasingly critical,” said Sravan Vanaparthy, vice president, Industrial Power Division, Power Solutions Group, onsemi. “With its industry-standard pin-out and market-leading efficiencies, QDual3 enables power electronics designers to plug and play these modules for an immediate performance boost in their systems.”
Original – onsemi
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LATEST NEWS1 Min Read
Mitsubishi Electric Corporation announced that it will launch a web-based service on June 28 to provide data on the design and validation of a proprietary prototype inverter equipped with a module containing three LV100 insulated gate bipolar transistors (IGBTs), aiming to help customers accelerate their development of high-power inverters for applications such as photovoltaic power-generation systems.
Customers involved in developing prototype inverter systems with LV100 packages are expected to use reference information provided by the service to reduce their design, manufacture and validation workloads. The service will be exhibited at major trade shows, including Power Conversion Intelligent Motion (PCIM) Europe 2024 in Nuremberg, Germany from June 11 to 13.
The prototype inverter includes a package of three parallel LV100 industrial IGBTs in a module measuring 100mm x 140mm module, typical of those used in high-power inverter systems. The reference data will include design data, such as geometry, component layout and electrical circuitry, as well as evaluation data such as temperatures, short-circuit protection, current balance and computer-aided engineering (CAE) validation results.Original – Mitsubishi Electric
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LATEST NEWS / PRODUCT & TECHNOLOGY / SiC / WBG3 Min Read
Littelfuse, Inc. announced the launch of the IX4352NE Low-side SiC MOSFET and IGBT Gate Driver. This innovative driver is specifically designed to drive Silicon Carbide (SiC) MOSFETs and high-power Insulated Gate Bipolar Transistors (IGBTs) in industrial applications.
The key differentiator of the IX4352NE lies in its separate 9 A source and sink outputs, which enable tailored turn-on and turn-off timing while minimizing switching losses. An internal negative charge regulator also provides a user-selectable negative gate drive bias for improved dV/dt immunity and faster turn-off. With an operating voltage range (VDD – VSS) of up to 35 V, this driver offers exceptional flexibility and performance.
One of the standout features of the IX4352NE is its internal negative charge pump regulator, which eliminates the need for an external auxiliary power supply or DC/DC converter. This feature is particularly valuable for turning off SiC MOSFETs, saving valuable space typically required for external logic level translator circuitry. The logic input’s compatibility with standard TTL or CMOS logic levels further enhances space-saving capabilities.
The IX4352NE is ideally suited for driving SiC MOSFETs in various industrial applications such as:
- on-board and off-board chargers,
- Power Factor Correction (PFC),
- DC/DC converters,
- motor controllers, and
- industrial power inverters.
It’s superior performance makes it ideal for demanding power electronics applications in the electric vehicle, industrial, alternate energy, smart home, and building automation markets.
With its comprehensive features, the IX4352NE simplifies circuit design and offers a higher level of integration. Built-in protection features such as desaturation detection (DESAT) with soft shutdown sink driver, Under Voltage Lockout (UVLO), and thermal shutdown (TSD) ensure the protection of the power device and the gate driver. The integrated open-drain FAULT output signals a fault condition to the microcontroller, enhancing safety and reliability. Furthermore, the IX4352NE saves valuable PCB space and increases circuit density, contributing to overall system efficiency.
Notable improvements over the existing IX4351NE include:
- A safe DESAT-initiated soft turn-off.
- A thermal shutdown with high threshold accuracy.
- The charge pump’s ability to operate during thermal shutdown.
The new IX4352NE is pin-compatible, allowing for a seamless drop-in replacement in designs that specify the existing Littelfuse IX4351NE, which was released in 2020.
“The IX4352NE extends our broad range of low-side gate drivers with a new 9 A sink/source driver, simplifying the gate drive circuitry needed for SiC MOSFETs,” commented June Zhang, Product Manager, Integrated Circuits Division (SBU) at Littelfuse. “Its various built-in protection features and integrated charge pump provide an adjustable negative gate drive voltage for improved dV/dt immunity and faster turn-off. As a result, it can be used to drive any SiC MOSFET or power IGBT, whether it is a Littelfuse device or any other similar component available on the market.”
Original – Littelfuse