MAX6823MUK+T

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Power management integrated circuits (PMICs) are a class of integrated circuits that provide power management functions to electronic systems. PMICs are used in a variety of applications including computers, mobile phones, industrial systems and automotive systems. In particular, the MAX6823MUK+T is an electronic supervisor integrated circuit designed to provide monitoring and protection functions for power management applications. This article will discuss the application field and working principle of the MAX6823MUK+T.

The MAX6823MUK+T is a fixed voltage supervisor intended for use in applications that require power management and reset functions. It is specifically designed to protect system circuitry from power glitches, such as transients or brownouts. The device operates from a single supply voltage and monitors one or two supply voltages (VCC and VL) in a range of 1.6V to 5.5V. It also features adjustable monitoring levels and a wide selection of reset thresholds and delay times.

The device is designed with an integrated manual reset circuit, which is accessible to the user through a momentary-contact switch. This is particularly useful for applications where a reset is requested manually and where reset indications are used for troubleshooting. In addition, the MAX6823MUK+T includes a power-on reset (POR) circuit which resets the device to a known state when power is applied.

The primary application field for the MAX6823MUK+T is power supply monitoring, but it can also be used for other applications such as overcurrent detection and power cycling control. It is also used in systems that require reset and/or power-on reset (POR) functions, such as embedded systems. The device can also be used in automotive applications, where it provides protection against voltage transients and brownouts.

The MAX6823MUK+T supervisor works by monitoring the voltages of one or two power supply rails and outputing a reset signal when the voltage goes below a certain threshold. It is designed to be connected to the power supply rail either directly or with a series resistor and capacitor, depending on the application. In addition, it has open-collector output that needs to be tied to a pull-up resistor (typically 1Kohm) and monitored by a microcontroller or microprocessor.

The device also includes a watchdog timer, which is used to detect processor when software is "hung". This feature is triggered by the processor sending an active-low pulse (low for a specific amount of time) to reset the timer. If the timer reaches the set timeout value without being reset, the supervisor will generate an active-low reset signal.

In summary, the MAX6823MUK+T is an electronic supervisor IC designed for system protection and reset applications. It operates from a single supply voltage and can be used in power management, overcurrent detection, and power cycling control applications. It has an integrated manual reset circuit and a watchdog timer, and features adjustable monitoring levels and a wide selection of reset thresholds and delay times. Ultimately, the MAX6823MUK+T is a powerful and reliable device designed to protect and provide reset functions in electronic systems.

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