Voltage Detectors (Reset ICs): Introduction
A voltage detector is an IC that monitors a certain voltage such as supply voltage. It is sometimes called a reset IC, for it sends a reset signal to the CPU at power-on reset signal detection or at supply voltage abnormality detection. It is also regarded as a kind of supervisor ICs, the same way as watchdog timer ICs which monitor signal cycles of a CPU.
Our product lineup includes many voltage detectors with various unique features.
Small and Thin Package
Voltage detectors below feature high input voltage of maximum 60 V and high detector threshold of maximum 36 V. These detectors can directly monitor a high supply voltage which an automotive battery or general industrial equipment use.
Over- and Under-voltage Monitoring (Window-type Detectors)
General voltage detectors have a reference voltage, and they define voltage state lower or equal to the reference voltage as abnormality. On the other hand, window voltage detectors have a function to find both over and undervoltage, and therefore can monitor whether the monitoring voltage is at the desired value or not.
Our window voltage detectors have a high threshold accuracy of ±0.5% (Ta = 25°C), and therefore are suitable for functional-safety-required applications such as automotive and industrial equipment.
Multi-functional Voltage Detectors
Unique Voltage Detectors Available
Besides the products mentioned above, we line up many other voltage detectors with characteristics such as a high threshold accuracy of ±0.5%, low supply current of 290 nA, and a wide operating voltage range of 0.5 to 60 V.
Other features include following: settable detection delay time, manual reset function (MR function), separated VDD-SENSE pins, power on reset function, output inversion, over and undervoltage monitoring function, adjustable detector threshold / release voltage function, and so on.
With these features, our voltage detectors will help to create high value-added applications.
FAQs on Our Voltage Detectors
Refer to the following FAQs for more details on functions our voltage detectors have.