X4163PI-4.5A

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PMIC (Power Management Integrated Circuit) is a type of integrated circuit (IC) that is used to manage the power supply of electronic devices, including Supervisors. The X4163PI-4.5A is a Supervisor IC from INFINEON Technologies that is suitable for use in many applications. This article discusses the application field and working principle of the X4163PI-4.5A.

Application Field

The X4163PI-4.5A is designed to protect digital systems from various faults, such as over-voltage and under-voltage situations. It provides a differential voltage monitor with two independent configurable threshold levels and programmable delay times, which can be used to detect input supply voltage conditions.[1] The X4163PI-4.5A is suitable for use in many applications, such as automotive[2], industrial control[3], Home Appliances[4], power supply systems, and computer motherboards.[5]

Working Principle

The X4163PI-4.5A consists of two voltage detectors with independent threshold values, which can be used to detect the input supply voltage conditions.[6] It also features an internal oscillator that enables programmable frequency and delay settings within the device.[7] When the input voltage falls below the first threshold, the device begins to count the system clock. When the voltage falls below the second threshold, the device will emit an interrupt signal to the host system. The host system can then take the appropriate action to protect the system.

The X4163PI-4.5A also contains a power-on reset (POR) function, which will reset the system when it is powered up, preventing system hang-ups due to corrupted code or incorrect power-up sequences.[8] Additionally, the device can be used to detect a low-voltage lockout (LVLO) situation in which the output of an internal on-chip regulator is used to generate an interrupt signal if the voltage drops below a certain level.[9]

Overall, the X4163PI-4.5A is a feature-rich Supervisor IC that is suitable for a wide range of applications. It offers two independent configurable threshold levels, along with programmable frequency and delay times. It also features a POR function and an LVLO comparator. With these features, the X4163PI-4.5A can reliably protect digital systems from various faults.

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