MIC2775-44YM5-TR

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The MIC2775-44YM5-TR is designed as a PMIC supervisor, with a wide range of applications. This article will discuss the application fields and working principle of the MIC2775-44YM5-TR.

The MIC2775-44YM5-TR is an ultra-low quiescent current high performance power supervisor for monitoring multiple voltages in various systems and applications. This includes but is not limited to applications such as medical devices, embedded systems, automotive systems, and portable electronics. It uses a 4-pin SOT-23 package to effectively monitor the output voltage of one to three linear power supply rails. The pins can also be used for detecting various comparator conditions, including initializing the system, controlling reset, operating power down modes, monitoring low voltage conditions, and setting system thresholds.

The working principle of the MIC2775-44YM5-TR is based on an embedded voltage supervisor circuit with a high accuracy of 0.5%. It also integrates start-up and power off reset logic and power off timer, designed to ensure system start-up and shutdown in an orderly manner. A scaleable reset output delay time is available, ranging from 33 ms to 500 ms. This allows the IC to be applied to a range of systems with different needs in terms of reset delay time. In addition, the MIC2775-44YM5-TR can be input for either disabling reset outputs or enabling POR reset signalling. Power on reset (POR) also features a delayed power down reset output upon power down, ensuring that the system is in a safe state before turning off power. It also has a low-voltage monitoring function with a wide system operating range with excellent linearity over a wide range.

The MIC2775-44YM5-TR is built with overvoltage protection and reverse polarity protection. It is designed to reset the system and enable POR reset signalling whenever the input voltage is below the set voltage or reverse-polarity detection is made. The MIC2775-44YM5-TR also has a watchdog timer which times out a system event on exceeding a programmable value. This is helpful for resetting the system in cases where the system does not respond to other reset sources. In addition, this IC has good thermal performance. The operating temperature range is from -1.0°C to 50°C, and the thermal resistance is from junction to ambient air is 10°C/W.

The MIC2775-44YM5-TR is widely used as a PMIC supervisor due to its wide range of applications and its ability to provide voltage monitoring. It is designed to accurately detect the output voltage of one to three linear power supply rails, and its reset output delay time can be scaled to fit the needs of various systems. Additionally, it offers overvoltage protection, reverse polarity protection and a watchdog timer to reset the system in cases where the system does not respond to other reset sources. Lastly, this IC has good thermal performance, with a wide operating temperature range and low thermal resistance.

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