Power Integrations Unveils Innovative Switcher IC for EVs

Power Integrations Unveils Innovative Switcher IC for Automotive Applications

Power Integrations, a prominent name in high-voltage integrated circuits, has made a significant move in the automotive industry by introducing its latest wide-creepage switcher IC, ideal for 800 V applications. This new IC promises to enhance the efficiency of electric vehicles (EVs) and streamline manufacturing processes thanks to its robust design.

Enhancements in Power Supply Efficiency

The new IC, InnoSwitch™3-AQ, features a wide drain-to-source-pin creepage distance of 5.1 mm, which does away with the necessity for conformal coating. This is a major advantage, as compliance with IEC60664-1 standards is achieved in an environment where such high voltages are commonplace. The innovative design not only satisfies regulatory requirements but also simplifies the manufacturing process while boosting system reliability.

Key Features of the InnoSwitch3-AQ

Mike Stroka, a product marketing engineer at Power Integrations, highlighted how automotive designers depend on the efficiency and compact nature of power supplies that leverage the InnoSwitch3-AQ ICs. The advanced creepage and clearance distances between key components in this new package facilitate the transition towards higher bus voltages in future EV designs. The unique InSOP™-28G package can support as much as 1000 VDC on the primary side while keeping other pins safely isolated.

Innovation Through Integration

The InnoSwitch3-AQ series is rated for a maximum output of 1700 V and integrates a silicon carbide (SiC) primary switch capable of delivering an impressive 80 watts of output power. One of the standout benefits of these ICs is their ability to reduce component counts by up to 50%, allowing for a more compact design. This not only conserves space but also enhances the overall reliability of power systems, a critical aspect when it comes to sourcing components.

Durability Against Adverse Conditions

The design embodiment includes a wider drain-pin, which is excellent for enduring high shock and vibration levels—factors that are crucial in eAxle automotive situations. This attention to durability means that the new InnoSwitch3-AQ models will not only perform under standard conditions but can also withstand more extreme environments, ultimately increasing vehicle safety and functionality.

Application Versatility in Automotive Systems

The new InnoSwitch3-AQ devices start operation with just 30 volts on the drain, eliminating the need for additional external circuitry, which is vital for maintaining functional safety in automotive applications. They come equipped with a range of protective features, including input under-voltage, output over-voltage, and over-current limiting capabilities. The inclusion of synchronous rectification and multi-mode valley switching flyback controller technology supports efficiencies greater than 90%, with standby power consumption of under 15 mW.

Targeting the Future of Electric Vehicles

This new suite of components is designed for an array of pivotal automotive applications including battery management systems, micro DC-DC converters, control circuits, and emergency power supplies within main traction inverters. A noteworthy feature of these ICs is their enhanced remote on/off functionality, providing ease of use and control over energy consumption.

Availability and Cost

Pricing for the InnoSwitch3-AQ switching power supply ICs begins at an economical $6 per unit for orders of 10,000 units, making these devices accessible to manufacturers aiming to innovate and update their offerings. Sample units are already available, with full-scale production set to begin shortly thereafter.

About Power Integrations

Power Integrations, Inc., stands as a leader in semiconductor technologies that focus on high-voltage power conversion. The company’s groundbreaking products play an essential role in the clean-energy ecosystem, facilitating the generation and efficient transmission of renewable energy. They are widely used in applications spanning from milliwatts to megawatts, making Power Integrations a key player in the transition to sustainable energy solutions.

Frequently Asked Questions

What is the InnoSwitch3-AQ switcher IC?

The InnoSwitch3-AQ is a wide-creepage switcher IC designed for automotive systems, providing enhanced efficiency and simplicity in high-voltage applications.

How does the new switcher IC improve automotive design?

It simplifies manufacturing processes by eliminating conformal coating needs while maintaining compliance with high-voltage standards.

What are the applications for the InnoSwitch3-AQ?

The ICs are suitable for battery management systems, control circuits, power supplies, and many other automotive applications.

Is the InnoSwitch3-AQ energy efficient?

Yes, it boasts over 90% efficiency and consumes less than 15 mW at no-load conditions, significantly reducing power waste.

When will the InnoSwitch3-AQ be available for purchase?

Samples are currently available, with full production expected to commence shortly, starting at $6 per unit for larger orders.

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