ADM693AARWZ

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PMIC, also known as Power Management Integrated Circuits, are semi-conductor integrated circuits which control the power states of a system. They regulate the current and voltage supplied to the system and manage all the operations related to power management of a system. PMICs are available in many forms and package sizes, ranging from 3 to 200 pins. The ADM693AARWZ is a 3-pin Micropower voltage supervisor IC with an active input of 2.8V to 11.5V. It contains an internal voltage reference, precision ground reference, temperature compensated thresholds and a high impedance, low current CMOS output.

The ADM693AARWZ is designed to monitor the power supplies in a wide range of applications such as processor-based systems, embedded systems and PC\'s. It is used to monitor the states of an application and as a reset source to prevent system malfunctions. It is easy to use and has low power consumption, making it an ideal solution for applications where power management is important.

The ADM693AARWZ works by comparing an external voltage with an internal reference voltage of 2.4V. It has two threshold voltages. The higher voltage threshold is set at 3.1V and the lower voltage threshold is set at 2.4V. The output is open drain with a pull-up resistor and is active low when the input voltage is between the two thresholds.

The ADM693AARWZ is also used to detect faults in applications such as power sequencing in microcontrollers, fault detection in battery-powered systems, ringing in power supplies and motor power supply fault detection. It can also be used to develop an alarm system or initiate a secondary reset sequence in the event of a primary system reset.

In terms of reliability, the ADM693AARWZ has a high immunity to both electrostatic discharge (ESD) and transients. It can handle voltages up to 15V, withstanding surge voltage spikes as high as 8.3V. It also has a high hysteresis of 25mV, which helps to ensure reliability in the presence of noise on the power line.

Overall, the ADM693AARWZ is a very useful and versatile integrated circuit for applications requiring tight control of power management. It is feature-packed, reliable and relatively low cost, making it a popular choice for applications requiring regular supervision of voltage levels. Its ability to differentiate between supply and reset signals ensures reliable power management and adds an extra layer of protection to these applications.

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