New power management IC ideal for automotive camera applications

Renesas Electronics Corporation has released an innovative automotive PMIC for next-generation automotive camera applications. The RAA271082 is an adaptable 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 provides four OV/UV monitors, I2C communications, a configurable general-purpose I/O pin, and a dedicated reset output/fault indicator. To fulfil stringent ASIL B metrics, the device incorporates 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 highly integrated device offers a universal power solution for automotive cameras. It is an excellent companion for the company's AHL technology, enabling car manufacturers to provide high-definition video utilising low-cost cables and connectors. The new PMIC simplifies power supply design for automotive camera applications needing functional safety compliance, modules that include surround view/satellite, rear view, driver monitor, and e-mirror. The device supports the power needs of almost any combination of image sensor, ISP and encoder technology while supporting direct-from-battery and power-over coax supply.

As well as imaging systems, the device's high integration and comprehensive safety features make it an ideal solution for various applications for 16- and 32-bit automotive MCUs.

"Cameras are now an indispensable feature for all new vehicles," 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. It is an excellent companion for our AHL solution, recently named as one of the most innovative applications of computer vision technology."