Automotive industry’s first Window voltage monitor

For designers working to achieve automotive functional safety in Advanced Driver Assistance Systems (ADAS) it will now be possible to reduce solution size and complexity by using Maxim Integrated’s MAX16137 single-window voltage monitor with built-in self-test (BIST).

This window monitor IC delivers robust protection by tracking both under-voltage and overvoltage levels with 1-percent accuracy allowing designers to accelerate system-wide functional safety by providing advanced diagnostics and reset capabilities. The MAX16137 also cuts solution size in half and helps to reduce design complexity.

Functional safety standards drive design direction in the automotive space and voltage monitors play a key role in reporting the health of power supplies. Further, these systems must include test circuits to ensure reliable operation. The MAX16137 delivers both diagnostic and BIST at the chip level to help designers achieve system-wide functional safety faster for ADAS and other autonomous driving applications.

The MAX16137 BIST features check the supervisor functionality without the need for external circuitry, reducing design complexity. By doing so, the MAX16137 also reduces solution size by 50 percent compared to the closest competitive solution. The supervisory IC can be designed into a variety of automotive systems such as infotainment, body electronics, power, electric vehicle power powertrain and IoT systems.

Key Advantages

• Built-In Self-Test: Advanced diagnostics at the chip level help developers meet system-level functional safety requirements with less board space
• Precision Window Monitoring: ±1 percent accuracy voltage monitoring of under-voltage/overvoltage (UV/OV) values can be factory set at ±4 percent to ±11 percent of target voltage
• Smaller Size: Eliminating external diagnostic and test circuitry reduces solution size by 50 percent
• Design Simplicity: Reduces system complexity

“Many automotive engineers are building autonomous driving systems where safety is paramount. They have requested higher accuracy supervisory circuits with programmable voltage thresholds and tolerance and built-in self-test, all to make their systems more robust,” said Binay Bajaj, director of business management for the Core Products Group at Maxim Integrated. “The MAX16137 is the industry’s only supervisory IC with BIST to help engineers meet their goals.”