Window-type voltage detector provides high accuracy and ultra-low consumption

ROHM has produced the high accuracy, ultra-low current consumption voltage detector (reset IC) BD48HW0G-C. It is optimised for multiple automotive and industrial applications needing voltage monitoring of electronic circuits for increased safety – including automotive electronic control units and factory automation equipment.

The new window-type voltage detector uses high-voltage BiCDMOS processes together with the company's proprietary analog design technology. The aim is to enable operating voltages up to 40V and an industry-leading detection voltage accuracy of ±0.75%. At the same time, the detection voltage may be freely set, allowing high accuracy monitoring of abnormal voltages in multiple applications, from low voltage to high voltage, contributing to highly reliable systems with minimal incorrect fault events.

Also, the device uses the company's proprietary ultra-low current consumption technology Nano Energy. It lowers current consumption to only 500nA (0.5µA, just 6% of standard products with equivalent functionality and accuracy). It provides the carefree application for increased power consumption in automotive systems powered by battery when the engine is stopped. This also makes it ideal for voltage monitoring in multiple power supply circuits in automotive and industrial applications needing functional safety.