Power Integrations Introduces First Automotive Qualified High Voltage Switch ICs with 1700V SiC MOSFETs
SAN JOSE, Calif.–(BUSINESS WIRE)–Power Integrations (Nasdaq: POWI), the leader in high-voltage integrated circuits (ICs) for energy-efficient power conversion, today announced the addition of two new AEC-Q100 qualified, 1700-volt ICs, to its InnoSwitch™ Family 3-AQ. The new devices are the industry’s first automotive-qualified switching power supply ICs to incorporate a silicon carbide (SiC) primary switching MOSFET. Delivering up to 70 watts of output power, the new ICs are intended for use in 600 and 800 volt battery and fuel cell electric passenger vehicles, as well as electric buses, trucks and a wide range of industrial power applications.
Highly integrated InnoSwitch ICs reduce the number of components needed to implement a power supply by up to 50%, saving significant space on the circuit board, improving the reliability of the system and mitigate component supply issues. Devices from the award-winning InnoSwitch family are now available with a choice of silicon, high-efficiency gallium nitride (GaN) and high-voltage SiC transistors, allowing designers to optimize their power solution across a wide range of consumer, computer, communications, industrial and automotive applications.
Peter Vaughan, Director of Automotive Business Development at Power Integrations, said, “800-volt batteries are becoming the standard for electric vehicles. Several vehicle systems are connected to this powerful electrical source, but delicate electronic control circuits require only a few volts to operate and communicate. InnoSwitch devices allow electronics to safely draw power from the fire hose available on the main bus, using minimal board area and without wasting energy. Most exciting is the opportunity to greatly simplify the backup power supply for the main traction inverter, which can be called upon at any time to operate from any voltage between 30 V and 1000 V. Our devices SiC-based InnoSwitch3-AQ handle this wide range with incredible ease.
Offered in a compact InSOP™-24D package, the new ICs use a FluxLink™ feedback link, providing enhanced isolation up to 5000VRMS for secondary side control. FluxLink technology enables direct sensing of the output voltage, providing benefits such as precise regulation and extremely fast transient response. The circuit will start from 30 volts without an external circuit – critical for functional safety. Additional protection features include input undervoltage, output overvoltage and overcurrent limiting.
The inclusion of synchronous rectification and a quasi-resonant (QR)/CCM flyback controller achieves over 90% efficiency, easily meeting the most stringent OEM requirements. These new parts consume less than 15 mW in no load, which is ideal for reducing self-discharge in battery management systems.
InnoSwitch3-AQ 1700 volt parts are also suitable for industrial markets, where the integrated solution replaces more MOSFET discrete controller designs, saving space, time and cost while increasing reliability in applications such as renewable energy , industrial motor drives, battery storage and measurement.
Availability and resources
A reference design, DER-913Q, and a hardware kit RDK-919Q, are available for designers wishing to evaluate the InnoSwitch3-AQ 1700 Volt IC. The devices are priced at $5.64 for part number INN3947CQ-TL and $9.02 for part number INN3949CQ-TL in quantities of 1,000 units. For more information, contact a Power Integrations sales representative or one of the company’s authorized worldwide distributors: Digi-Key, Farnell, Mouser, and RS Components, or visit power.com.
About Power Integrations
Power Integrations, Inc. is a leading innovator in semiconductor technologies for high voltage power conversion. The company’s products are key components of the clean energy ecosystem, enabling the production of renewable energy and the efficient transmission and consumption of energy in applications ranging from milliwatts to megawatts. For more information, visit www.power.com.
Power Integrations, InnoSwitch, FluxLink, InSOP, power.com and the Power Integrations logo are trademarks or registered trademarks of Power Integrations, Inc. All other trademarks are the property of their respective owners.