The R3154N Voltage Detector operates at a supply voltage up to 42V. The device monitors over-and-under output voltages from the power supply IC for a microprocessor and a sensor and detects an abnormal voltage of systems. The R3154N offers undervoltage detection down to 0.55V, making it suitable for low power devices.
The wide operating voltage range of the R3154N enables the device to be powered directly from car batteries and function independently from the power source for the processor. The R3154N also has an integrated voltage regulator, which stabilizes the voltage fluctuations of a car battery, even during a tough cranking condition.
The high accuracy of R3154N Voltage Detector's sense voltage and hysteresis levels enable the device to detected malfunctions in an early stage. This is especially important for safety-critical applications and automotive systems requiring fault detection, including ECU, ADAS, and control units, including EV inverters and charge controllers.
The Ricoh Electronic Devices Company R3154N Series Voltage Detector is offered in a compact SOT-23-6 package to minimize PCB space requirements.