X45620V20I

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The X45620V20I is a type of Positive Voltage Supervisor commonly referred to as PMIC (Positive Voltage Supervisor Integrated Circuit). It is a low voltage device which is typically used in power management applications.

The X45620V20I operates in a positive voltage range (3V-12V) with an accurate supervising voltage range of 0V to +2.5V. Its main applications include providing a reset signal to an microcontroller in the event of a power failure. It is also used in voltage monitoring, power supply sequencing and system reset monitoring.

The X45620V20I has a wide variety of features that make it an attractive choice for power management supervision. It has an adjustable overvoltage protection threshold (OVP) with a band gap reference voltage of 1.2V; this ensures accurate voltage sensing and adjustment. In addition, it includes an adjustable current source for hysteresis reference, enabling precise voltage regulation. Finally, it provides an external circuit for debouncing and delay time setting, ensuring reliable operation.

The X45620V20I also has two integrated error protection circuits; these include a Short-Circuit Protection (SCP) and an Over-Current Protection (OCP). The SCP prevents output shorts caused by load mistakes, while the OCP prevents current levels from exceeding a preset limit.

When it comes to the working principle of the X45620V20I, it consists of two main elements; a comparator and a latch circuit. The comparator is used to compare the reference voltage (VREF) with the input voltage (VIN). When VREF is higher than VIN, the output will remain low, and the voltage supervisor will be inactive. However, when VREF is lower than VIN, the output will be high and the voltage supervisor will enter into operation. The latch circuit will then be activated, depending on the latency period. The latch circuit will then send a reset signal to the microcontroller, thus triggering a reset event.

In summary, the X45620V20I provides a convenient and cost-effective solution for power management supervision applications. Its adjustable threshold voltage, wide range of features and two integrated protection circuits make it an attractive choice for a variety of applications. Its main operation principle involves a comparator, a latch circuit and a reset signal to the microcontroller. With its advanced features, the X45620V20I is an ideal device for reliable system protection.

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