Tuesday, March 19, 2024

Automotive Window Voltage Monitoring IC With Built-In Self-Test

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The IC helps automotive system engineers achieve necessary functional safety measures while reducing solution size by 50 per cent

In the automotive space, functional safety standards matter a lot for which voltage monitors play a key role in reporting the health of power supplies. Furthermore, these systems must include test circuits to ensure reliable operation. 

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Thanks to the MAX16137, a voltage monitor IC with built-in self-test (BIST), solutions for automotive functional safety in Advanced Driver Assistance Systems (ADAS) can now be realised in a compact and less complex form. The IC delivers robust protection by tracking both undervoltage and overvoltage levels with 1 per cent accuracy that allows designers to accelerate system-wide functional safety by providing advanced diagnostics and reset capabilities. 

The MAX16137 achieves reduced design complexity without requiring any external circuitry, thus reducing design complexity. In the process, the solution size is reduced by 50 per cent compared to other solutions. The supervisory IC can be designed for various 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 per cent accuracy voltage monitoring of undervoltage/overvoltage (UV/OV) values can be factory set at ±4 per cent to ±11 per cent of target voltage.
  • Smaller Size: Eliminating external diagnostic and test circuitry reduces solution size by 50 per cent.
  • 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. “We are helping engineers accelerate functional safety and the MAX16137 is the industry’s only supervisory IC with BIST to help engineers meet their goals.” 

The MAX16137 and the MAX16137EVKIT# evaluation kit are now available at Maxim Integrated’s website and from authorised distributors.


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