MAX16082XR38W+T

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PMIC (Power Management Integrated Circuits) are used in almost all types of electronic systems. From small consumer electronics to industrial products and robots, PMICs are a vital component in ensuring stable power delivery, monitoring and reliability. One example of such a PMIC is MAXIM\'s MAX16082XR38W+T, a dual-channel supervisory circuit. This article discusses the application field of this circuit and its working principle.

The MAX16082XR38W+T is a power management integrated circuit with two independent voltage monitoring channels, each channel having its own programmable threshold voltage, reset timeout, and push-pull output for microprocessor reset. It is mainly used in applications where monitoring of dual supply voltages is required, such as USB-powered devices, connector power conservation in battery-powered applications, and system protection in power over-voltage events. It is also suitable for detecting system faults and resetting of microprocessors.

The circuit operates using a voltage supervisor which uses an internal comparator to compare the voltage at its input pins with an internal reference. The supervisor is able to reset a system of microprocessors if the voltage falls below a certain threshold. This threshold can be programmed using voltage dividers. The output of the supervisor can also be programmed to operate as an active-low signal or an open-drain configuration. This ensures compatibility with diverse logic levels and signal conditioning requirements.

The MAX16082XR38W+T also has a programmable timeout circuit, which allows the supervisor to reset the system microprocessors if the reset signal stays below the threshold for more than a certain duration. The timeout is adjustable from 50 - 700 microns, and the reset behavior can be fine-tuned as needed.

The MAX16082XR38W+T also features an internal temperature compensation circuit, which prevents the supervisor from falsely resetting the system due to external temperature changes. It also has an internal power-on reset circuit, which ensures that the circuit stays in reset mode until the power is applied. The circuit can also be disabled or put into low-power mode for further power saving.

To summarize, MAX16082XR38W+T is a dual-channel voltage supervisor IC, designed for dual-supply voltage monitoring, system fault detection and resetting of microprocessor systems. It can operate in reset behavior conditions with adjustable timeout, and also features power-on reset and temperature compensation. All these features make it a versatile and reliable choice for applications that require dual-channel voltage monitoring.

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