PMIC targets next gen automotive cameras
Renesas' multi-rail power IC provides a universal power solution for automotive cameras
Renesas Electronics has developed an automotive power management IC (PMIC) for next-generation automotive camera applications.
Called the RAA271082, the PMIC is an 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.
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.
The device is described as an ideal companion for Renesas’ Automotive High-Definition Link (AHL) technology that enables car manufacturers to deliver high-definition video using low-cost cables and connectors. The new PMIC simplifies power supply design for automotive camera applications requiring functional safety compliance, modules that include surround view/satellite, rearview, driver monitor, and e-mirror. The RAA271082 supports the power requirements of almost any combination of image sensor, image signal processor (ISP) and encoder technology, while also supporting direct-from-battery as well as 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.
“Cameras are now an indispensable feature for all new vehicles,” said Niall Lyne, VP 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. It is an excellent companion for our AHL solution, recently named as one of the most innovative applications of computer vision technology.”
Renesas has developed a 'Winning Combination' to assist customers in designing automotive camera systems using both the RAA271082 and AHL: Full Digital Cluster with AHL. Renesas Winning Combinations are technically vetted system architectures that work together seamlessly to bring an optimised low-risk design for a faster time to market.
The RAA271082 is available now along with the RTKA271082DE0000BU Evaluation Board.
