Renesas Debuts New ASIL B Power Management IC for Automotive Camera Applications

Renesas Electronics Corporation has unveiled its automotive power management IC (PMIC) for next-generation automotive camera applications. The RAA271082 is a versatile ISO-26262-compliant multi-rail power IC with a primary high-voltage synchronous buck regulator, two secondary low-voltage synchronous buck regulators, and a low-voltage LDO regulator.

As described in a recent press release, it offers four overvoltage and undervoltage (OV/UV) monitors, I2C communications, a configurable general-purpose I/O pin, and a dedicated reset output/fault indicator. To meet stringent ASIL B metrics, the RAA271082 includes a second independent reference for OV/UV monitors, built-in self-test at power-up, independent OV/UV monitoring, and continuous CRC error checking on internal registers and I2C communications.

RAA271082 Key Specifications

According to Renesas, the RAA271082 provides a universal power solution for automotive cameras and is an “ideal companion” for the company’s Automotive High-Definition Link (AHL) technology, which enables OEMs to utilize high-definition video via low-cost cables and connectors. The new PMIC from Renesas is designed to optimize automotive camera applications requiring functional safety compliance and modules including surround views, satellite, rearview, driver monitor, and e-mirror. Renesas adds that the RAA271082 supports the power requirements of almost any combination of image sensor, image signal processor (ISP), and encoder technology while supporting direct-from-battery and power-over coax supply.

“In addition to imaging systems, the RAA271082’s high integration and comprehensive safety features make it an excellent solution for 16- and 32-bit automotive MCUs in a variety of applications,” said Niall Lyne, Vice President of the Automotive Analog Power and Video Business Division at Renesas. “Our new PMIC delivers all the functionality our customers need in a compact form factor suitable for almost all automotive camera modules.”

Other key features include the ability to support general-purpose automotive MCUs with integrated reset generation, watchdog timer, and programmable GPIO, 1A output current capability per switching regulator to support the growing power demands of high-resolution automotive image sensors, and the integrations of multiple components and functions to reduce overall power consumption.

“It is an excellent companion for our AHL solution, recently named as one of the most innovative applications of computer vision technology,” Lyne added.

Other Renesas News in 2022

In the summer of 2022, Renesas announced a strategic partnership with Tata Motors Ltd. and Tejas Networks Ltd., both Tata Group companies. The strategic partnership will focus on designing and manufacturing Renesas’ semiconductor solutions for India and other emerging markets. These endeavors further extend the companies’ longstanding relationship and build on other significant announcements like the EV Innovation Center jointly established by Renesas and Tata Group’s Tata Elxsi in March 2022.

“Tata Elxsi is a great example of a system integration partner in the automotive ecosystem,” said Daniel Sisco, Senior Director of Digitial Product Strategy at Renesas, during an episode of AutoVision News Radio. “With this joint development center, we can leverage the expertise and capability of Tata Elxsi to support our customers.”