Power_electronics Features

NewSpace demands low voltage, high current power for performance and longevity - Nov 2022
Matt Renola, Senior Director, Global Business Development – Aerospace & Defense
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Power Electronics Europe News
ASIL B PMIC complements AHL technology for next-gen vehicle cameras

The RAA271082 is a 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 over-voltage and under-voltage (OV/UV) monitors, I2C communications, a configurable general purpose I/O pin and a dedicated reset output/fault indicator. To meet ASIL B metrics, the power management IC 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.

It can be used with the company’s Automotive High definition Link (AHL) technology that enables car manufacturers to deliver HD video using inexpensive cables and connectors. The PMIC simplifies power supply design for automotive camera applications requiring functional safety compliance, modules that include surround view/satellite, rear view, driver monitor, and e-mirrors, says the company. It also 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.   

It provides 1A output current capability per switching regulator to support the growing power demands of the latest high-resolution automotive image sensors and supports general-purpose automotive MCUs with integrated reset generation, watchdog timer and programmable GPIO.

It has a high degree of programmability to support a selection of automotive image sensors from all major vendors, says the company.

The PMIC’s high level of integration to reduce overall power consumption coupled with safety features make it suitable for 16- and 32-bit automotive MCUs in other applications.

The RAA271082 is available today. The RTKA271082DE0000BU evaluation board is also available now.


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