Toshiba Releases High-Speed Response, Full Input/Output Range CMOS Dual Comparator Suitable for ....
Toshiba"
has launched a CMOS dual comparator, "TC75W71FU." It features a
high-speed response and a full input/output range (Rail to Rail), suiting it
for use in overcurrent detection in industrial equipment. Shipments start
today.
Today’s
industrial equipment uses large currents in motor drives and power circuits.
This brings with it the risk of sudden overcurrent, which can damage equipment,
shut down production line, and even reduce safety; its rapid detection and
protection from it are essential. In the constant search for higher efficiency
and product miniaturization, the range of current and voltages that circuits
can support has narrowed, and even slight overcurrent can impose a significant
load on the circuit. This increases the need for faster and more precise
overcurrent detection technologies.
The new
product offers a faster propagation delay than the current TC75W56FU, with a
maximum of 45ns for low-to-high transitions and 30ns for high-to-low
transitions. This enables immediate equipment shutdown in overcurrent,
enhancing operational safety.
The
input/output voltage range supports the full range—operation from minimum (GND)
to maximum (Vcc) supply voltage—making design easier. The minimum operating
supply voltage, 1.8V, supports low-voltage operation. Since the new comparator
also features a push-pull output[3], signal rise and fall times are fast, no
external pull-up resistor is required, and a stable voltage level can be
maintained.
In
addition to TC75W71FU, TC75W72FU, which features added hysteresis for enhanced
noise immunity, and TC75W73FU, which offers hysteresis and an open-drain
output[5] capable of sending signals to voltage domains different from the
comparator’s supply, are scheduled to start mass production in February 2026.
Toshiba
will continue to develop comparators that contribute to improved safety and
reliability of industrial equipment, and to expand the product lineup to meet a
wide range of customer needs.
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