It offers a simple upgrade path for automotive Tier 1 suppliers and original equipment manufacturers (OEMs) that require 360° rotating magnetic sensing with Stray Field Immunity (SFI).
Melexis' existing MLX90364 and MLX90421 DMPs have a proven track record of success in internal combustion engine (ICE) vehicles, providing accurate feedback on throttle position, exhaust gas recirculation (EGR), transmission position, and other actuator or motion feedback systems. However, for manufacturers transitioning from existing ICE vehicles to more sustainable high-voltage hybrid propulsion systems, the added electronics necessitate a robust SFI to ensure accurate feedback from the magnetic sensing integrated circuits.
Leveraging the DMP design and pinout of the earlier MLX90364 and MLX90421 integrated circuits, the MLX90425 offers Melexis' latest magnetic position sensing technology in a legacy package. This provides the automotive market with a seamless and highly cost-effective solution, requiring no significant redesign of assemblies or tooling.
Based on Melexis' innovative magnetic technology, the IC provides robust magnetic flux measurement with 5 mT SFI and a programmable linear transfer function with up to 17 points. System integration is simplified by the device's wide operating temperature range of -40 °C to 160 °C and versatile data output options, including radiometric analog and PWM signals. Furthermore, the MLX90425 is ISO 26262 compliant as an ASIL-B-ready Safety Out-of-Context (SEooC) element, making it ideal for demanding and safety-critical automotive applications.
“To promote greater sustainability across all areas of the automotive market, the industry requires innovative solutions that can enable the creation of new, cost-effective, high-voltage hybrid propulsion systems,” says Klaus Wilczek, Global Marketing Manager at Melexis. He continued, “The MLX90425 demonstrates our dedication to both our customers and product design, offering engineers state-of-the-art SFI magnetic sensing in a familiar package, eliminating the need for costly redesigns and retrofits.”.
