MAX6323FUT26-T

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The MAX6323FUT26-T is a microprocessor supervisory circuit (PMIC-Supervisors) with power-on-reset (POR), watch dog timer (WDT), and manual reset (MR) functions. It is designed to monitor microprocessors and other digital logic for proper system initialization and normal operation. The MAX6323FUT26-T provides a simple, cost-effective solution to protect valuable processors from costly power-up or power-down anomalies.

The MAX6323FUT26-T is a fully integrated part that internally implements a system supervisor with capacitive reset, manual reset, and watchdog time-out functions. These functions prevent processor crashes in the event of a power failure, improper system initialization, and other errors. Additionally, the part offers settable trip points and hysteresis for reset and watchdog functions, adjustable watchdog time-out selection, and optional output delay.

The MAX6323FUT26-T is designed to be used in systems using an LDO, DC-DC converter, or battery-powered supply. The MAX6323FUT26-T features a built-in power-on reset circuit with a programmable delay, and integrated logic to monitor MR and WDT inputs. The MAX6323FUT26-T also provides an adjustable power-good indicator with a programmable threshold.

In normal operation, the MAX6323FUT26-T continually monitors the system to ensure proper system initialization, turning on the PWROK output when conditions are satisfied and turning it off when conditions are not met. When the system has been initialized, the MAX6323FUT26-T continuously checks the system for proper operation. If an error is detected, the MAX6323FUT26-T will reset the system to its initial state.

The MAX6323FUT26-T monitors the voltage from the power supply and an external manual reset input. When the supply voltage drops below the user-programmable reset threshold, the MAX6323FUT26-T will assert a reset signal. The reset threshold is adjustable and has 3.2V, 3.6V and 4V versions. Additionally, the MAX6323FUT26-T has a programmable reset delay which allows the user to set the amount of time the chip will wait before resetting the system.

The MAX6323FUT26-T also has a watch dog timer (WDT), which can be used to detect an error and reset the system if the error persists. The WDT features programmable timeout periods, resistor selectable hysteresis, and an adjustable pulse width. The MAX6323FUT26-T also includes an adjustable power-good output, which monitors the supply voltage and turns off when the voltage drops below the user-programmable level.

The MAX6323FUT26-T is suitable for use in a wide range of applications such as laptops, cellular phones, medical instruments, industrial controllers, and other portable or battery powered systems. It provides cost-effective system protection and easily integrates into the end design.

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