Toshiba Electronic Devices & Storage Corporation has introduced a new high-speed CMOS dual comparator designed to enhance overcurrent detection in industrial equipment. The newly released TC75W71FU offers fast response times and full input/output rail-to-rail operation, addressing growing safety and reliability requirements in modern industrial systems. Shipments of the device have begun.
Industrial equipment such as motor drives and power control circuits increasingly operates with high current levels, raising the risk of sudden overcurrent events. Such incidents can damage components, halt production lines, and pose safety concerns. At the same time, efforts to improve efficiency and reduce system size have narrowed allowable voltage and current margins, making rapid and accurate overcurrent detection more critical than ever.
Toshiba’s TC75W71FU is engineered to meet these demands with significantly improved propagation delay compared to the company’s existing TC75W56FU. The new comparator delivers a maximum propagation delay of 45 nanoseconds for low-to-high transitions and 30 nanoseconds for high-to-low transitions, enabling faster detection and shutdown in overcurrent conditions.
The device supports full rail-to-rail input and output operation, allowing signals to span from ground to the supply voltage. This simplifies circuit design and ensures compatibility with a wide range of industrial applications. With a minimum operating supply voltage of 1.8 V, the comparator also supports low-voltage operation. Its push-pull output design eliminates the need for an external pull-up resistor, enabling faster signal transitions and maintaining stable voltage levels.
In addition to the TC75W71FU, Toshiba has announced plans to expand the series. The TC75W72FU, featuring built-in hysteresis for improved noise immunity, and the TC75W73FU, which combines hysteresis with an open-drain output capable of interfacing with different voltage domains, are scheduled to enter mass production in February 2026.
Toshiba stated that it will continue to develop comparator solutions aimed at improving safety, reliability, and design flexibility across a broad range of industrial equipment applications.
