XC6122C336MR-G

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PMIC, or Power Management Integrated Circuits, are highly versatile and reliable components that are used to simplify and enhance the power management of a system, preventing power related issues such as voltage or current overshoots. From the most advanced SoC to the simplest discrete component, PMICs are ubiquitous and critical for the performance and longevity of a device. Supervisors, or reset ICs, are specialized type of PMICs that monitor and control the start-up conditions of an electronic system, ensuring that the supply voltage and clocks are within acceptable parameters for orderly system initialization. The XC6122C336MR-G, a supervisor IC from ON Semiconductor, is a good example of a reset device, and this article will explore its application fields and working principle.

The XC6122C336MR-G is a high-precision micropower supervisor IC that includes reliable power-on reset and timer functions. This device is able to drive a reset signal through an open-drain output, and its delay can be used to manage power-on sequencing. With its low power consumption, this IC can handle an input voltage of up to 7.2 V and includes an output voltage range of 0.8V to VIN − 1.1V with low power loss. Comparing to other PMICs, the XC6122C336MR-G is also able to sustain a significantly higher temperature range of -50°C to +155°C.

The XC6122C336MR-G is a great choice for supervisor applications that require wide temperature range operation and robust protection from voltage spikes. It can be used in industrial controllers, automotive systems, medical equipment and many other applications. The IC is also ideal for embedded systems and portable applications like battery-driven sensors, radio-frequency identification (RFID) readers, smart-regulation systems, etc. Combining its low input current with its wide temperature range makes this IC a reliable communication solution even in extreme environmental conditions.

The working principle of the XC6122C336MR-G is relatively simple. The IC includes an internal reference, an error amplifier, a comparator and a signal conditioning circuit. The internal reference provides a regulated output voltage of 2.25 V. This voltage is then compared to the voltage of the external datasource through the error amplifier. Once the external voltage reaches 2.25V, the signal is inverted and the comparator triggers a reset signal that is then conditioned by an RC circuit. The delay of the conditioning stage is determined by the internal resistor and external capacitor, allowing the user to control the reset response time of the IC.

In summary, the XC6122C336MR-G is an high-precision supervisor IC that can be used in a variety of PMIC applications, such as industrial controllers, automotive systems and medical equipment. Thanks to its low power consumption and wide temperature range, this IC is an ideal choice for communication solutions in embedded systems and portable applications. Finally, the internal reference, error amplifier, comparator and signal conditioning circuitry work together to ensure reliable protection from voltage spikes and over-currents.

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