MAX6753KA28/V+T

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PMIC stands for Power Management Integrated Circuits. It refers to an integrated circuit dedicated to managing power. Although the term is often used to refer to the whole power management architecture, the most commonly used PMICs are Supervisors. Supervisors are smaller integrated circuits, used to monitor the power system and alert the system when a fault occurs. The MAX6753KA28/V+T is a specific type of supervisor. In this article, we will look at its application field and working principles.

Application Field

The MAX6753KA28/V+T is a 3.3V supervisor with programmable thresholds and low-capacitance protection. It is well-suited for applications with limited board space and a need for fast response to fault conditions. It is suitable for use in many products, especially those in which over-voltage and over-current protection is necessary, such as PC motherboards, gaming consoles, communications equipment, and embedded devices. It also has application in automotive power systems, as it can provide additional protection against automotive faults such as transients and reverse polarity.

Working Principle

The MAX6753KA28/V+T is a static-discharge protected single-output supervisor that provides over- and under-voltage and over-current protection. It monitors a variety of voltage and current levels and provides a signal to indicate when a fault has occurred. It also provides watchdog timer and reset signal outputs.

The MAX6753KA28/V+T has a programmable low-voltage reset and watchdog threshold. This is enabled by a low voltage reset pin which allows for external connections to ground for setting the reset signal to match the system\'s behavior. The watchdog timer output is also programmable, with the threshold being adjustable to match the system\'s requirements. The reset signal is asserted when an over- or under-voltage condition is detected or when the current exceeds a set threshold.

The MAX6753KA28/V+T also features a patented low-capacitance reverse-polarity protection circuit to protect against damage that can be caused by electrostatic discharge. This circuit protects against transients caused by electrostatic discharges by providing a controlled path to ground without creating a spark. This feature makes the MAX6753KA28/V+T well-suited for automotive power systems.

The MAX6753KA28/V+T also has a variety of test pins which are used to perform a diagnostics test and check the validity of the reset and watchdog signals. The diagnostics test checks the open circuiting and short circuiting of the signal lines and the functionality of the reset and watchdog output. The result of the diagnostics test is given by an LED blinking pattern. The diagnostics test is triggered by a signal delivered at one of the diagnostics pins.

Conclusion

The MAX6753KA28/V+T is a 3.3V supervisor, suitable for PC motherboards, gaming consoles, communications equipment and automotive applications. It monitors the power system and alerts the system when a fault occurs. It also included low-capacitance protection and can be used to protect against transients. Additionally, its containing a diagnostics test allows for the functionality of the reset and watchdog outputs to be tested. All in all, the MAX6753KA28/V+T is a powerful and reliable supervisor.

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