MAX6347XR42-T

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Power management integrated circuits (PMICs) are electronic components used to control and manage flows of power in electronic applications. One of the most popular types of PMICs is the supervisor, which is used to control the power supply of an electronic system by monitoring the voltage output and managing the power supply in case of failure. The MAX6347XR42-T is a voltage supervisor device with an extended temperature range, allowing it to be used in applications that require enhanced temperature performance.

The MAX6347XR42-T is a precision micropower voltage supervisor monitor with adjustable voltage thresholds and a push-pull output. The device is optimized for the extended temperature range of -55°C to +125°C and can detect supply voltages from 2.25V to 11.8V. The voltage thresholds are adjusted via two external resistors and are factory-trimmed for accuracy. The output of the supervisor is a push-pull output with an open- Drain output which can be used to provide reset, power failure warning, or low-voltage warning to the system.

The MAX6347XR42-T is used primarily in automotive applications, as it has extended temperature ratings, high accuracy and is designed to minimize power dissipation in order to optimize efficiency. It is also used in industrial applications such as robotics, where extended temperature ratings are required and temperature-induced drift is a major concern. It is also used in medical applications where temperature-induced drift is a concern, such as in patient monitoring equipment or medical imaging equipment.

The working principle of the MAX6347XR42-T is quite simple. The device uses two external resistors to set the high and low voltage thresholds. Whenever the supply voltage moves outside of the programmed thresholds, the output (open-drain output) is switched low. This can be used to generate a reset signal, power failure warning, or low-voltage warning to the system. The output also functions as an over-voltage warning monitor, allowing the system to shut down in case of an over-voltage condition.

In summary, the MAX6347XR42-T is a micropower voltage supervisor with an extended temperature range. It can detect supply voltages from 2.25V to 11.8V with accuracy, and it is primarily used in automotive and industrial applications where extended temperature ranges are necessary and temperature-induced drift is a concern. It operates by using two external resistors to set the high and low voltage thresholds, and the output switches low if the supply voltage moves outside of the programmed thresholds. This can be used to reset the system, provide a power failure warning, or provide a low-voltage warning.

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