MAX6323CUT46-T

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PMIC - Supervisors encompass a wide range of integrated circuit solutions, including voltage and temporal supervisory components, watchdog and reset timers, system power management and voltage monitoring. Among these solutions, the MAX6323CUT46-T is a Supervisory IC that ensures reliable power-on and power-down sequencing. It is used when reset and reset timeout functions are required in the system. The features of the IC includes: a programmable temperature-hardened timeout; an active-low, open-drain reset output; integrated watchdog capability; and active-low manual reset input.

ApplicationsThe MAX6323CUT46-T Supervisory IC is widely used in digital systems such as: Motherboard solutions, embedded systems, industrial process control and networking/communication systems. In these systems, it acts as an important system timer, constantly monitoring several power supply regulation parameters such as voltage level and output current. By ensuring reliable power sequencing and monitoring, the IC helps prevent system-halting crashes, thus improving system stability and reliability.

Working PrincipleThe MAX6323CUT46-T Supervisory IC utilizes the Reset and Reset Timeout feature to monitor a range of power supply parameters, ensuring that the system does not experience any power-related crashes. This IC contains an internal capacitor, which is charged by the logic supply to a reference voltage. The capacitor is then connected to a comparator and reset logic, which monitors system voltage and output current.

When the monitored power supply gets regulated to the expected levels, the capacitor will remain in its charged state which keeps the reset logic active, thus preventing the reset output from going off prematurely. When the power supply parameters reach the pre-set points, the capacitor will be discharged, releasing the reset logic and activating the reset output.

The MAX6323CUT46-T Supervisory IC is also equipped with a programmable timeout for the reset circuit. This timeout can be set in the range of 1 second to 10 minutes, depending upon the application. The timeout feature guarantees the system’s stability by keeping the reset output active until the desired power levels are reached.

The MAX6323CUT46-T Supervisory IC also includes a manual reset input as a fail-safe feature. This provides the capability to perform a reset while leaving the reset timeout feature active. This allows the designer to provide a manual reset signal; a signal which will be produced when the DC and AC power inputs fail to reach the preset levels.

In summary, the MAX6323CUT46-T Supervisory IC provides a reliable solution for ensuring the stability and reliability of a system, by providing an integrated timer for reset timeout control and reset input monitoring. The wide range of applications where this IC is suitable for, combined with its simple implementation, make it a valuable tool for designers of digital systems.

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