MAX6328UR23+TG65

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PMIC (Power Management Integrated Circuits) are specialized integrated circuits used to manage the power needs of a circuit. Supervisors, a subclass of PMICs, are dedicated ICs used to ensure that a system is healthy and operating properly by monitoring supply voltages, resetting the system in case of any power irregularities, and sequencing the power-up and power-down of components. MAX6328UR23+TG65 is a supervisor IC, which highlights some of its widest applications and explores its working principle.

MAX6328UR23+TG65 is an integrated circuit specifically designed for applications that need reliable, low power supply and excellent reset features. The device features two built-in reset signals with independent reset conditions that are ideal for monitoring the power status of complex circuit boards or systems. The device has two thresholds with adjustable reset thresholds of 1.50V and 3.00V that fits most application requirements. This supervisor circuit is used as a reset IC in many high-end applications such as servers, digital TVs, industrial computing, gaming consoles, and STB (set-top boxes).

Apart from its use as a reset IC, MAX6328UR23+TG65 is also used for voltage monitoring. It provides an open-drain power-fail detection output that flags any power-supply disruptions or overflows beyond the user-defined thresholds. The device comes with an onboard timer that can be configured to delay the reset signal for a few seconds, helping the system to maintain a steady power supply. The low quiescent current, low power-on reset, and fast release time make the circuit an excellent choice for power supply applications as well.

To make it easier to implement the reset circuit, the MAX6328UR23+TG65 comes with a built-in noise immunity circuit. This ensures that any noise or transient pulses do not trigger the reset or power-fail signals. The device offers exceptional reliability and accuracy thanks to its low treshold voltage management, temperature compensation, and power-fail frequency compensation features.

The integrated circuit also comes with distinct features that make it appropriate for real-time clock management. This feature allows users to reset the system clock while preserving the real-time clock. The device supports external standoff voltage development and has an adjustable reset timeout range of 0.1s to 16s. The MAX6328UR23+TG65 is a RoHS-compliant device and is available in surface-mount and SOT-223 plastic packages.

MAX6328UR23+TG65 operates on the same principle as any other power supervisor IC. The device monitors the power supplies operating voltages and triggers the reset signal if any of the monitored values go above or below set levels. For example, if the input voltages of the system go above the programmed threshold, the integrated reset circuit will be triggered and outputs a reset signal. The device then waits for the input voltage to stabilize before releasing the reset signal.

Overall, the MAX6328UR23+TG65 is an affordable low-power supervisor IC that offers excellent reset and voltage monitoring features. Its onboard noise immunity and adjustable reset timeout features make it suitable for various applications, such as servers, gaming consoles, STBs, and digital TVs. The device operates on the same principle as any other power supervisor IC and can be used to monitor and reset a system to maintain its power supplies.

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