Smart Diode Controller IC Use Case: Advanced Driver-Assistance Systems (ADAS)

USE CASE

 

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This use case examines the application of the MPQ5850-AEC1 in advanced driver assistance systems (ADAS).

The MPQ5850-AEC1 can be used to protect the vehicle’s ADAS from irreparable damage in the case of reverse input or crossed wires.

Electric vehicles and autonomous vehicles integrate ADAS, which is comprised of various technologies that enhance the driving experience and safety. Since ADAS requires more sophisticated and heavier components, it is integral to protect the system from worst-case battery transients, such as negative voltage or negative current flow.

The MPQ5850-AEC1 is placed between the vehicle’s battery and electronics to drive an external N-channel MOSFET, which replaces a Schottky diode. This allows current to smoothly flow to the vehicle’s electronics. If a reverse input occurs, the MPQ5850-AEC1 pulls down the GATE pin to turn off the N-channel MOSFET quickly. The MPQ5850-AEC1 can be used to protect the vehicle’s ADAS from irreparable damage in the case of reverse input or crossed wires.

Furthermore, the MPQ5850-AEC1 provides the fastest response time in the industry, leading to AC frequency rectification up to 100kHz. The MPQ5850-AEC1 can also deliver ultra-low system voltage dropout as low as 20mV and operate in cold-crank conditions as low as 0V. Overall, the MPQ5850-AEC1’s features offer robust protection against automotive transients, minimize power loss, and reduce board size in a compact TSOT23-8 (2mmx3mm) package.