Industry's fastest automotive high-withstand voltage detector

ABLIC has launched the S-19116 Series, a new automotive high-voltage detector featuring the industry's fastest detection response time of max. 6.8μs while achieving ultra-low current consumption of 2μA typ.

While industry-standard voltage monitoring response times typically range from tens to hundreds of μs when detecting overvoltage faults, the new series attains an industry-leading detection response time of max. 6.8μs, representing approximately 92% reduction compared to conventional products. Also, this detector greatly reduces system standby current and comes in an ultra-compact HSNT-6 (1.96mm × 2.46mm × 0.5mm) package, satisfying the growing demands for space optimization in today's automotive equipment.

As an example of functional safety measures to mitigate the impact of potential failures, overvoltage protection is vital when supplying voltage from a battery through a regulator to MCUs and sensors. The countermeasure involves detecting irregularities such as overvoltage in the regulator output using a voltage detector, and safely resetting the MCU. However, through this process, the voltage supplied from the regulator to the MCU and sensors continues to rise, potentially exceeding the ECU's voltage tolerance and developing a risk to system safety and functional safety compliance.

This has been a notable technical trade-off in addressing this challenge. While increasing the detection response speed of the voltage monitoring function can mitigate the safety risk, faster detection response typically increases current consumption, which in turn increases the system's standby current – a critical concern for engineers working to minimise power consumption.

The S-19116 Series greatly improves functional safety for automotive applications by delivering improvements in detection speed and current consumption performance.

Automotive applications include (engines, transmissions, suspensions, ABS, EV/HEV/PHEV, etc.), and automotive battery voltage detection.

Key Applications include DC-DC converter, OBC, ADAS domain controller, BMS, and inverter.