ADAS functions, which are already mandatory today or will soon be mandatory, increase vehicle safety and improve the driving experience. These include intelligent braking functions for collision avoidance, GPS/navigation, adaptive speed control, lane keeping assistants and reversing/environment cameras. Although much attention is paid to these functions in development, the handling of power supply in electrically harsh vehicle environments is a challenge for ADAS system developers that is not so much considered but nevertheless critical.
Maxim's application-optimized ICs regulate, control and protect the power supply. These products solve difficult problems for ADAS system designers by offering a unique combination of package size, high operating efficiency, low quiescent current, integrated ASIL B/D electrical protection and reduced EMI.
The PMIC series introduced by Maxim includes the following components:
- The MAX20019 dual-channel synchronous down-converter: it provides the industry's smallest dual-channel 3.2 MHz power supply with a package size of 2 mm × 3 mm (compared to the nearest competitor solutions offering single-channel components in either 2 mm x 2 mm or 3 mm x 3 mm packages).
- MAX20087 quad camera power protection: The ASIL B/D camera module protection IC contains an I2C interface for reporting over/undervoltage and fault conditions; it monitors up to four 600 mA coaxial channels and isolates faults from individual camera modules.
- MAX20075 and MAX20076 synchronous down-converters: They provide the industry's lowest quiescent current with peak and valley mode current control functions; achieve a high peak efficiency of 91% when used in always-on applications while having a 40 V load-dump tolerance.
- The MAX20014 three-output DC/DC converter: It includes one synchronous up-converter and two synchronous down-converters for smaller, simpler and more cost-effective designs (competitive products require two ICs plus discrete components); it has a switching frequency of 2.2 MHz and a spread spectrum function for reduced interference radiation and is available in a 4 mm x 4 mm small package.
More information: http://bit.ly/PowerforADAS