Renesas Introduces Highly Accurate, Cost-Effective Pressure Sensing Solution for Automotive Applications

Rhea-AI Summary

Renesas Electronics Corporation has launched the RAA2S425x Family of ICs designed for automotive pressure sensing systems in xEV, EV, and FCEV applications. These ICs offer advanced digital and analog functions that streamline design, reduce system BOM, and lower production costs. Key features include high accuracy (0.35%-1.0%) over a temperature range of -40°C to 150°C, an embedded RISC microcontroller for digital compensation, and compliance with automotive safety standards (ASIL-B). The devices are now available in compact QFN-24 packages.

Positive

• Launch of RAA2S425x Family enhances product offering for automotive applications.
• High accuracy pressure readings (0.35% - 1.0%).
• Digital calibration reduces assembly costs.

Negative

• None.

New RAA2S425x Product Family Integrates Multiple Analog and Digital Functions to Reduce Design Time and Costs of xEV/EV/FCEV Pressure Sensing Braking, Transmission and HVAC Systems

TOKYO--(BUSINESS WIRE)-- Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today introduced the RAA2S425x Family of ICs for automotive pressure sensing systems. The new devices provide highly accurate amplification and sensor-specific correction of signals in automotive xEV/EV/FCEV pressure sensing braking, transmission and HVAC systems. The RAA2S425x Product Family features high integration and advanced digital and analog functionality that significantly ease the design cycle and reduce customers’ system BOM and production costs.

Renesas' Highly Accurate, Cost-Effective Pressure Sensing Solution for Automotive (Graphic: Business Wire)

The RAA2S425x ICs support all major pressure sensing technologies and feature a high-performance analog front-end (AFE) for enhanced signal conditioning. The new devices offer extended analog sensor offset compensation (XSOC), adjustable to nearly all resistive bridges. They deliver pressure and temperature readings with high accuracy (0.35% - 1.0%) over a wide temperature range (-40°C to 150°C).

The RAA2S425x ICs integrate a 16-bit embedded RISC microcontroller that provides digital compensation of offset, sensitivity, temperature drift, and nonlinearity. It has highly reliable non-volatile memory (NVM) to store calibration coefficients and configuration data in harsh automotive environments. The RAA2S425x communicates digitally with calibration equipment, reducing noise sensitivity. Digital calibration enables customers to keep assembly costs low since it doesn’t require trimming of sensing elements. RAA2S425x is an optimal solution for safety and harsh automotive applications with integration of overvoltage and reverse-polarity protection circuitry, ASIL-B compliance according to ISO26262, excellent electromagnetic compatibility, and multiple superior diagnostic features.

“The RAA2S425x product family showcases the unique capabilities that Renesas brings to automotive customers with our strong analog and digital technology portfolio,” said Christian Wolf, Vice President, Automotive Analog Sensor Business Division at Renesas. “The new pressure sensing solution enables our customers to reduce design time with highly accurate, reliable systems meeting tough automotive safety requirements.”

Key Features of the RAA2S425x Pressure Sensing Solution

• High-performance analog front end (AFE) for enhanced signal conditioning
• High accuracy pressure readings of 0.35% - 1.0%. Effective ADC resolution of 13 to 18 bits
• Wide temperature range of -40°C to 150°C. AEC-Q100 Grade 0 (-40°C to 150°C) qualified
• Automotive ASIL-B compliance according to ISO26262.
• Extended analog sensor offset compensation (XSOC) enables support for multiple resistive bridges with selectable on-chip PTAT (proportional to the absolute temperature) support to deliver external temperature sensing
• Digital compensation of offset, sensitivity, temperature drift, and non-linearity for increased accuracy
• Digital calibration reduces assembly costs by eliminating the need to trim sensing elements
• Calibration and configuration data stored in highly reliable non-volatile memory
• Ratio-metric analog output signal and output update rate of 100μs in fastest mode
• Diagnostics and fault checks for fault-safe operation
• Static and temporary diagnostic modes available

Renesas has combined the RAA2S425x with complementary MCU, analog and power offerings to create Winning Combinations for automotive xEV/EV/FCEV pressure sensing braking, transmission and HVAC systems. Renesas offers more than 250 Winning Combinations with compatible devices for a wide range of applications and end products at https://www.renesas.com/win. Winning Combinations for automotive applications are available at https://www.renesas.com/us/en/application/winning-combinations-automotive.

Availability

The RAA2S425x devices are available today in 4mm x 4mm QFN-24 packages with wettable flanks. For more information, please visit: https://www.renesas.com/RAA2S4251B.

About Renesas Electronics Corporation

Renesas Electronics Corporation (TSE: 6723) delivers trusted embedded design innovation with complete semiconductor solutions that enable billions of connected, intelligent devices to enhance the way people work and live. A global leader in microcontrollers, analog, power, and SoC products, Renesas provides comprehensive solutions for a broad range of automotive, industrial, infrastructure, and IoT applications that help shape a limitless future. Learn more at renesas.com. Follow us on LinkedIn, Facebook, Twitter, YouTube, and Instagram.

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View source version on businesswire.com: https://www.businesswire.com/news/home/20210928005314/en/

Media Contact:

Americas

Don Parkman

Renesas Electronics Corporation

+ 1-408-887-4308

don.parkman.xh@renesas.com

Source: Renesas Electronics Corporation

FAQ

What is the RAA2S425x product family from Renesas?

The RAA2S425x is a family of integrated circuits designed for automotive pressure sensing systems, offering high accuracy and reduced design costs.

What are the key features of the RAA2S425x Family?

Key features include high-performance analog front end, accuracy of 0.35%-1.0%, extended temperature range, and digital calibration to lower assembly costs.

When will the RAA2S425x devices be available?

The RAA2S425x devices are available now in 4mm x 4mm QFN-24 packages.

How does the RAA2S425x impact automotive design costs?

The RAA2S425x reduces design time and production costs through its high integration and advanced functionality.

Is the RAA2S425x compliant with automotive safety standards?

Yes, the RAA2S425x is compliant with ASIL-B according to ISO26262.