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GaN / PRODUCT & TECHNOLOGY / WBG3 Min Read
Texas Instruments (TI) announced a new family of radiation-hardened and radiation-tolerant half-bridge gallium nitride (GaN) field-effect transistor (FET) gate drivers. This family of gate drivers includes the industry’s first space-grade GaN FET driver that supports up to 200V operation.
The devices are available in pin-to-pin compatible ceramic and plastic packaging options and support three voltage levels. TI’s advancements in space-grade power products enable engineers to design satellite power systems for all types of space missions using just one chip supplier.
Satellite systems are growing increasingly complex to meet the demand for more on-orbit processing and data transmission, higher-resolution imaging, and more precise sensing. To improve mission capabilities, engineers strive to maximize electrical power system efficiency. TI’s new gate drivers are designed to accurately drive GaN FETs with fast rise and fall times, improving power-supply size and density. This allows a satellite to more effectively use the power generated by its solar cells to perform mission functions.
“Satellites perform critical missions, from providing global internet coverage to monitoring climate and shipping activity, enabling humans to better understand and navigate the world,” said Javier Valle, product line manager, Space Power Products at TI. “Our new portfolio enables satellites in low, medium and geosynchronous earth orbits to operate in the harsh environment of space for an extended period of time, all while maintaining high levels of power efficiency.”
For more information, read the technical article, “How you can optimize SWaP for next-generation satellites with electronic power systems.”
Optimizing size, weight and power (SWaP) using GaN technology can:
- Improve electrical system performance.
- Extend mission lifetimes.
- Reduce satellite mass and volume.
- Minimize thermal management overload.
Designers can use the family for applications spanning the entire electrical power system.
- The 200V GaN FET gate driver is suitable for propulsion systems and input power conversion in solar panels.
- The 60V and 22V versions are intended for power distribution and conversion across the satellite.
TI’s family of space-grade GaN FET gate drivers offers different space-qualified packaging options for the three voltage levels, including:
- Radiation-hardened; Qualified Manufacturers List (QML) Class P and QML Class V in plastic and ceramic packages, respectively.
- Radiation-tolerant Space Enhanced Plastic (SEP) products.
John Dorosa, a TI systems engineer, will present “How to easily convert a hard-switched full bridge to a zero-voltage-switched full bridge” on Tuesday, March 18, 2025, at 9:20 a.m. Eastern time at the Applied Power Electronics Conference in Atlanta, Georgia. This industry session will feature TI’s TPS7H6003-SP gate driver.
Production quantities of the TPS7H6003-SP, TPS7H6013-SP, TPS7H6023-SP and TPS7H6005-SEP are available now on TI.com. Preproduction quantities of the TPS7H6015-SEP and TPS7H6025-SEP are also available, with the TPS7H6005-SP, TPS7H6015-SP and TPS7H6025-SP available for purchase by June 2025. Additionally, development resources include evaluation modules for all nine devices, as well as reference designs and simulation models.
Original – Texas Instruments
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LATEST NEWS / PRODUCT & TECHNOLOGY / SiC / WBG2 Min Read
SemiQ Inc has announced a family of three 1200V SiC full-bridge modules, each integrating two of the company’s rugged high-speed switching SiC MOSFETs with reliable body diode. The modules have been developed to simplify the development of photovoltaic inverters, energy storage, battery charging and other high-frequency DC applications.
Available in 18, 38 and 77mΩ (RDSon) variants, the modules have been tested at voltages exceeding 1350V and deliver a continuous drain current of up to 102A, a pulsed drain current of up to 250A and a power dissipation of up to 333W.
Operational with a junction temperature of up to 175oC, the rugged B2 modules have exceptionally low switching losses (EON 0.13mJ, EOFF 0.04mJ at 25oC – 77mΩ module), low zero-gate voltage drain/gate source leakage (0.1µA/1nA – all modules) and low junction to case thermal resistance (0.4oC per watt – 18mΩ module).
“By integrating high-speed SiC MOSFETs with exceptional performance and reliability, our new QSiC 1200V family of full-bridge modules sets a new standard for power density and efficiency in demanding DC applications. This family of modules simplifies system design, and enables faster time-to-market for next-generation solar, storage, and charging solutions,” said Seok Joo Jang, Director of Module Engineering at SemiQ.
Available immediately, the modules can be mounted directly to a heat sink, are housed in a 62.8 x 33.8 x 15.0mm package (including mounting plates) with press fit terminal connections and split DC negative terminals.
Original – SemiQ
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GaN / LATEST NEWS / PRODUCT & TECHNOLOGY / WBG2 Min Read
Gallium Nitride (GaN) technology plays a crucial role in enabling power electronics to reach the highest levels of performance. However, GaN suppliers have thus far taken different approaches to package types and sizes, leading to fragmentation and lack of multiple footprint-compatible sources for customers.
Infineon Technologies AG addresses this challenge by announcing the high-performance gallium nitride CoolGaN™ G3 Transistor 100 V in RQFN 5×6 package (IGD015S10S1) and 80 V in RQFN 3.3×3.3 package (IGE033S08S1).
“The new devices are compatible with industry-standard silicon MOSFET packages, meeting customer demands for a standardized footprint, easier handling and faster-time-to-market,” said, Dr. Antoine Jalabert, Product Line Head for mid-voltage GaN at Infineon.
The CoolGaN G3 100 V Transistor devices will be available in a 5×6 RQFN package with a typical on-resistance of 1.1 mΩ. Additionally, the 80 V transistor in a 3.3×3.3 RQFN package has a typical resistance of 2.3 mΩ. These transistors offer a footprint that, for the first time, allows for easy multi-sourcing strategies and complementary layouts to Silicon-based designs. The new packages in combination with GaN offer a low-resistance connection and low parasitics, enabling high performance transistor output in a familiar footprint.
Moreover, this chip and package combination allows for high level of robustness in terms of thermal cycling, in addition to improved thermal conductivity, as heat is better distributed and dissipated due to the larger exposed surface area and higher copper density.
Samples of the GaN transistors IGE033S08S1 and IGD015S10S1 in RQFN packages will be available in April 2025.
Original – Infineon Technologies
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MCC Semi announced four new components in advanced P-channel MOSFET lineup. Supporting -100V applications from battery protection to motor drives and high-side switches, MCAC085P10, MCAC055P10, MCU055P10, and MCU085P10 are made for reliability in challenging environments.
With a maximum on-resistance of 55mΩ or 85mΩ, these MOSFETs improve overall system efficiency while reducing power dissipation. Leveraging trench technology and superior thermal performance, these versatile solutions provide engineers with high power density in a compact DFN5060 or DPAK package.
New P-channel MOSFETs are the obvious choice for unmatched performance and effective power management.
Features & Benefits:
- Trench MOSFET Technology: Enhances current capacity and reduces on-resistance
- Low On-Resistance: A maximum RDS(on) of 55mΩ or 85mΩ minimizes power consumption and boosts efficiency
- Low Conduction Losses: Reduce heat generation while improving overall system operation
- Excellent Thermal Performance: Safeguards device from overheating during use in high-temp scenarios
- High Power Density: Available in compact DFN5060 and DPAK package options
Original – Micro Commercial Components
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LATEST NEWS / PRODUCT & TECHNOLOGY / SiC / WBG2 Min Read
Vishay Intertechnology, Inc. introduced 16 new 650 V and 1200 V silicon carbide (SiC) Schottky diodes in the industry-standard SOT-227 package. Designed to deliver high speed and efficiency for high frequency applications, the Vishay Semiconductors devices offer the best trade-off between capacitive charge (QC) and forward voltage drop for diodes in their class.
The devices consist of 40 A to 240 A dual diode components in a parallel configuration, and 50 A and 90 A single phase bridge devices. Built on state of the art thin wafer technology, the diodes feature a low forward voltage drop down to 1.36 V that dramatically reduces conduction losses for increased efficiency. Further increasing efficiency, the devices offer better reverse recovery parameters than Si-based diodes and have virtually no recovery tail.
Typical applications for the components will include AC/DC PFC and DC/DC ultra high frequency output rectification in FBPS and LLC converters for photovoltaic systems, charging stations, industrial UPS, and telecom power supplies. In these applications, the diodes’ low QC down to 56 nC allows for high speed switching, while their industry-standard package offers a drop-in replacement for competing solutions.
The diodes deliver high temperature operation to +175 °C and a positive temperature coefficient for easy parallelling. UL-approved to file E78996, the devices feature a large creepage distance between terminals and a simplified mechanical design for rapid assembly.
Original – Vishay Intertechnology