X4045S8

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When selecting an electronic device such as an integrated circuit (IC), it’s important to choose a model that fits the application at hand. Take the X4045S8, a supervisor integrated circuit from Exar Corporation. This device can provide overvoltage protection and reset for applications that require monitoring for compliant voltage levels. Additionally, it provides system reset and clocking inputs that can be configured for over voltage protection, which are designed to reduce circuit complexity and increase system diagnostic coverage.

The X4045S8 is a member of the Power Management and Interface (PMIC) - Supervisors family. It is most commonly used in applications such as automotive, industrial, medical, and consumer. It is an ideal solution for providing overvoltage protection and reset functions to these various systems.

The device features a power supply rail range of 2.7V to 5.5V and is able to detect voltages as low as 1.0V. It includes an integrated voltage level detector, providing input overvoltage protection up to 6V. The system reset, tuned to multiple oscillator frequencies upto 16MHz, is available with a positive or negative output pulse.

The device has two main modes of operation, operating and monitoring. When in operating mode the voltage supervisor actively detects VDD and VCC voltages in order to determine system operating conditions. When in monitoring mode the X4045S8 will listen and detect any non-compliant voltageconditions and will enable the reset output accordingly.

The X4045S8 also offers a variety of protection features, such as over-voltage, under-voltage and loss of power protection. Furthermore, it has an internal preventive circuit that prevents abrupt current changes due to high leakage current. This makes it an ideal choice for high-reliability systems.

The X4045S8 is designed with a single oscillator and internal comparators, which provide two individually adjustable threshold setting that allow monitoring of different voltages. The two trip points are typically set with an external resistor to ground. These trip points are used to determine when to generate a reset as well as when to turn on the logic output.

The device also offers an on-chip digital diagnostic feature, allowing the user to monitor the status of the supervisor. This feature can be enabled or disabled by selecting the appropriate pins. Finally, it features an open-drain output that can be used to indicate a reset condition, allowing it to be connected to other devices to provide a full-featured reset protection system.

The X4045S8 offers advanced protection, flexibility and excellent reliability for various applications. Its internal circuit can be easily adjusted to fit specific requirements, making it a great choice for providing voltage-level monitoring and reset conditions.

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