X5165S8I-4.5A

PMIC- Supervisors, like the X5165S8I-4.5A, are a type of integrated circuit (IC) used to monitor system power supply levels and reset components in the event of low voltage or over voltage conditions. The X5165S8I-4.5A is a 4.5V supervisor suitable for low power application and designed for use in the most demanding system applications and environments. Its purpose is to provide safe and reliable power supply conditions for microcontrollers and other integrated circuits.

The X5165S8I-4.5A provides two fixed voltage thresholds, an active low reset signal, and an open-drain or push-pull active high reset signal. It also provides a built-in delay timer, a built-in comparator, and thermal shutdown circuitry. The primary applications of an X5165S8I-4.5A are Automotive, Consumer Electronics, Industrial, Medical, and Military.

The X5165S8I-4.5A uses two ground inputs to determine the voltage thresholds: GND1 and GND2. GND1 is the reference and GND2 is the power supply ground. When the voltage between GND1 and GND2 drops below the GND2 voltage (Vlow) threshold, the device outputs a reset signal. When the voltage between GND1 and GND2 rises above the GND1 voltage (Vhigh) threshold, the device also outputs a reset signal. The reset signal is usually active low, however it can also be active high depending on the configuration of the individual device.

In addition to the threshold triggers described above, the X5165S8I-4.5A also has a built-in delay timer. This timer is used to provide a stable reset signal even in the event of slow rising and falling voltages, or when the voltage thresholds are very close to each other. The timer can be adjusted by varying the external capacitor connected to the device. It provides a reset delay of up to 512ms, and has a typical active low reset signal of 25ms.

The X5165S8I-4.5A also has a built-in comparator. This comparator is used to detect the difference between the GND1 and GND2 voltages, and provide a reset signal when the difference exceeds a certain level. The threshold voltage is adjustable by varying an external resistor connected to the device. The comparator is typically used to detect power supply transients and provide a reset signal when the transient voltage is above threshold.

Finally, the X5165S8I-4.5A also has thermal shutdown circuitry. This circuitry is used to detect when the device temperature has exceeded a certain level and will automatically shutdown the device until the temperature has returned to normal. This provides an additional layer of protection against over-heating of the device and other components that may be connected to it.

In summary, the X5165S8I-4.5A is a 4.5V supervisor suitable for low-power applications. It provides two fixed voltage thresholds, an active low reset signal, and an open-drain or push-pull active high reset signal. It also provides a built-in delay timer, a built-in comparator, and thermal shutdown circuitry. Its primary applications are Automotive, Consumer Electronics, Industrial, Medical, and Military.