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

By: Renesas Electronics Corporation via Business Wire

September 28, 2021 at 05:00 AM EDT

ⓘ This article is third-party content and does not represent the views of this site. We make no guarantees regarding its accuracy or completeness.

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

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.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20210928005314/en/

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.

(Remarks). Arm, Arm Cortex and TrustZone are trademarks or registered trademarks of Arm Limited in the EU and other countries. All names of products or services mentioned in this press release are trademarks or registered trademarks of their respective owners.

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

Contacts

Media Contact:

Americas

Don Parkman

Renesas Electronics Corporation

+ 1-408-887-4308

don.parkman.xh@renesas.com

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