The BD4142HFV-TR Supervisory Circuits CMOS Volt Det IC 3-5.5V HVSOF5 manufactured by ROHM is a CMOS (Complementary Metal Oxide Semiconductor) Voltage Detector IC capable of sensing and controlling voltage levels between 3 and 5.5 Volts with High Voltage SOF5 packagings. It is designed to monitor and detect a range of voltages, and can be used to trigger certain events in a circuit or system, act as a high level alarm circuit for voltage, or function as a power-on/power-off delay circuit. The BD4142HFV-TR has various built-in features that enable it to be accurately utilized in many applications, such as Power Supply Sequencing, Battery Management, and Over Voltage and Under Voltage Detectors, among others. The device's features include: a low current path of 0.5uA, a precision operating voltage at 1.2V (conversion) or 1.7V (reset) with a 0.5% accuracy, a wide temperature range of -40°C to +125°C, and a short delay time of 10µs.