Renesas Electronics has introduced the RAA2S425x series IC for automotive pressure sensing systems. The new devices provide high-precision amplification and senor-specific correction of signals in automotive xEV/EV/FCEV pressure sensing braking, transmission and HVAC systems. The product family offers high integration and advanced digital and analog capabilities that significantly simplify design cycles and reduce customer system BOM and production costs.
The integrated circuit supports all major pressure sensing technologies and provides high performance AFE for enhanced signal conditioning. This new device provides XSOC, which can be adapted to almost any resistance bridge. They provide high precision pressure and temperature readings (0.35%-1%) over a wide temperature range (-40℃ to 150℃).
The integrated circuit incorporates a 16-bit embedded RISC microcontroller that digitally compensates for offset, temperature drift, sensitivity and nonlinearity. It features highly reliable NVM to store calibration coefficients and configuration data in harsh automotive environments. The integrated circuit digitally communicates with the calibration equipment to reduce noise sensitivity. Digital calibration allows customers to keep assembly costs low because it does not require adjustment of sensing elements. It integrates over voltage and reverse polarity protection circuits, complies with THE ASIL-B standard of ISO26262, provides superior electromagnetic compatibility, and many superior diagnostic features, making it the best solution for safety and demanding automotive applications.
Christian Wolf, Vice President, Automotive Analog Sensor Business Division at Renesas said:"The Renesas RAA2S425x family of products demonstrates the unique capabilities Renesas brings to the automotive customer with a powerful combination of analog and digital technologies," he said. "The new pressure sensing solution enables our customers to reduce design time and meet demanding automotive safety requirements with high-precision, reliable systems."
Renesas Electronics combines the RAA2S425x with complementary MCU, analog and power products to provide a successful combination of automotive xEV/EV/FCEV pressure sensing braking, transmission and HVAC systems. It offers more than 250 successful combinations with compatible devices for a wide range of applications and final products.
