ASIL-Grade Protector IC Ensures Reliability of Safety Apps


The MAX20087 dual/quad camera protector IC includes integrated I2C diagnostics and can support up to 16 cameras

Designers can now achieve ASIL compliance for automotive camera modules safely and cost-effectively with the MAX20087 dual/quad camera protector IC from Maxim Integrated Products, Inc. (NASDAQ: MXIM). This is the industry’s only ASIL B- to ASIL D-compliant camera protector IC with integrated I2C-based diagnostics, making it ideal in supporting multiple automotive cameras in advanced driver assistance systems (ADAS). A single MAX20087 supports four cameras simultaneously, while four of the devices in parallel on the same bus supports 16 cameras, protecting each output individually from short-to-battery, short-to-ground and overcurrent conditions.

Modern vehicles now boast multiple cameras, which, combined with other advanced sensors such as radar and LiDAR, support safety features like ADAS. The fusion of these sensors enable collision avoidance, detects blind spots and pedestrians, prevents lane departure and can even guide the vehicles to park themselves. Globally, the automotive camera market is anticipated to reach roughly $7.5 billion by 2023, with a CAGR of 24.3% from 2018 to 2023, according to a report from Research and Markets. Given that these automotive cameras play such a critical role in safety, it’s imperative to ensure that they are powered properly and operate reliably.

The MAX20087 dual/quad device is a highly integrated camera power protector IC that can be plugged into a fusion electronic control unit (ECU) and is the industry’s only ASIL-grade camera protector with integrated I2C-based diagnostics. It enables simplification of fault mitigation circuitry by requiring minimal external components. In addition to a built-in self-test (BIST), an integrated 8-bit analog-to-digital converter (ADC) precisely monitors current, voltage and supply readings as required for ASIL compliance. With this IC, designers can isolate faults on cameras powered from a single power supply, while providing diagnostic fault information via I2C. As a dual/quad channel device, it  provides up to 600mA protection switches in a 4mm x 4mm, 20-pin side wettable TQFN package.

Learn more at