Infineon Released Power Management Chip for Traction Inverters
The new integrated circuit reduces inverter board area by up to 70 percent to streamline automotive motor control.
Updated on Sept. 21, 2026 in Semiconductors
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Infineon has released the OPTIREG TLE9744QK, a power management integrated circuit (IC) designed for high-voltage traction inverters. The device is now available in sample and evaluation board quantities.
Why it matters
By integrating power regulation and safety logic onto a single chip, this component addresses the industry push to minimize board space and total component counts in complex automotive systems. This design simplifies hardware architecture while maintaining rigorous functional safety standards.
The chip supports an operating voltage range of 4 V to 36 V and features a 50 µA quiescent current. It is rated for operation across a temperature range of -40° C to 150° C.
The players
Infineon
A German semiconductor manufacturer specializing in power electronics, automotive sensors, and automotive microcontrollers.
The details
The OPTIREG TLE9744QK utilizes a dual-architecture approach, combining two buck/boost pre-regulators with linear post-regulators to supply various sensors and communication modules. For safety, it includes an integrated logic block that creates an independent path for phase currents and DC-link voltage, meeting ASIL-D safety requirements under ISO 26262. A redundant supply input ensures the safety logic remains active even if the primary low-voltage supply fails.
Timeline
September 21, 2026: Infineon released the OPTIREG TLE9744QK.
Until at least 2038: The product is scheduled for long-term availability.
The Tech Race
Automotive chipmakers are increasingly racing to integrate safety and power regulation into single-package solutions to meet the requirements of the ISO 26262 functional safety standard. This move by Infineon places it in direct competition with other Tier-1 suppliers attempting to optimize the footprint of electric vehicle traction inverters.
This component is intended for hardware engineers and automotive system integrators building high-voltage traction inverters. Designers can begin prototyping immediately, as evaluation boards are currently available for purchase.
The takeaway
Infineon has effectively shifted the complexity of power management into a smaller, high-density package to support next-generation traction inverters. Engineers should monitor the official product support roadmap for the OPTIREG TLE9744QK to align future project lifecycles with the 2038 availability guarantee.
Further reading
For more developments in automotive components and hardware architecture, explore the latest trends in Semiconductors.
Source note: This article includes information reported by CHARGED Electric Vehicles Magazine.
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