MIC1232N

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PMIC - Supervisors are integrated circuit products that are manufactured to ensure the stability of a circuits power supply. They contain various elements that work together to monitor the power supply and protect the circuit from damage due to voltage spikes, under voltage and over voltage conditions. The MIC1232N is such a product; it contains an Internal Voltage Detector (IVD), a Time Out Detector (TOD) and a Power-On Reset Generator (POR). It is designed for applications with digital integrated circuits operating from a single supply, voltage that may range from 1.8V to 5.5V.

Main Application Field

The MIC1232N is well suited for a wide range of applications; its main application field is automotive applications. In automotive applications, two integrated circuits are used to protect a system\'s power supply with the MIC1232N; the first monitors the under voltage and over voltage conditions, and the second monitors the voltage drop in the event of a short circuit or brown out.

The MIC1232N can also be used in portable applications, in which the power supply must be monitored to ensure the stability of the power supply. The MIC1232N monitors the input voltage, ensures that the power supply remains within an acceptable range, and helps to prevent damage to the power supply and the circuit.

Working Principle

The MIC1232N is comprised of three primary elements; an Internal Voltage Detector (IVD), a Time Out Detector (TOD) and a Power-On Reset Generator (POR).

The Internal Voltage Detector (IVD) monitors the input voltage and warns about over voltage and under voltage conditions. The Time Out Detector (TOD) monitors the input voltage and warns of prolonged voltage issues. The Power-On Reset Generator (POR) generates a reset signal in the event of a power-on surge or brown-out condition.

The Internal Voltage Detector (IVD) senses the voltage at its VIN pin and outputs a logic-high signal at its OV/UV pin. This signal is used to indicate under voltage and over voltage conditions and is thought to be accurate to within 1.0 +/- 0.2V. If the voltage remains outside the normal range for more than one second, the TOD will trigger.

The Time Out Detector (TOD) senses the voltage at its VIN pin and outputs a logic-low signal at its OV/UV pin. This signal is used to indicate prolonged undervoltage and overvoltage conditions, and the TOD is thought to be accurate to within 1.0 +/- 0.2V. If the voltage remains outside the normal range for longer than one second, the TOD will trigger.

The Power-On Reset Generator (POR) is used to reset and protect an integrated circuit or other device in the event of a power-on surge or brown-out condition. The POR senses the voltage level of the VIN pin and then generates and outputs a reset signal. This reset signal is used to reset the integrated circuit or other device.

In summary, the MIC1232N is an integrated circuit product designed for applications with digital integrated circuits operating from a single supply, voltage that may range from 1.8V to 5.5V. It is comprised of an Internal Voltage Detector (IVD), a Time Out Detector (TOD) and a Power-On Reset Generator (POR). The IVD and TOD sense the voltage at its VIN pin and output a logic-high and logic-low signal at its OV/UV pin, respectively. The POR generates and outputs a reset signal in the event of a power-on surge or brown-out condition. It is well suited for a wide range of applications including automotive and portable applications.

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