MAX6730UTSD3+T Integrated Circuits (ICs)

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A supervisory circuit is a device used to monitor the supply voltage of a processor or microcontroller in order to detect any failures or under-voltage conditions. When such an event occurs, the supervisory circuit will assert a reset signal to the processor or microcontroller to reset its internal registers and states, thereby restoring normal operation. The MAX6730UTSD3 + T is a versatile supervisory circuit with a wide range of features, making it suitable for a variety of applications.

The MAX6730UTSD3 + T includes four independent supervisory circuits, each of which has individual selectable minimum and maximum trip points, adjustable reset timeout delay, and programmable manual reset. Each supervisory circuit includes a comparator with hysteresis for improved noise immunity and a power-on reset generator for timing the RESET generation. The MAX6730UTSD3 + T is designed to be compatible with a wide range of power supply voltages and can be used with both low-voltage and high-voltage applications.

The MAX6730UTSD3 + T can be used to monitor both AC and DC supplies and it can be configured to perform several different types of “latching” functions as shown in the diagram. A latching function is useful when it is necessary to maintain the microcontroller or processor in a reset state until it is manually reset or until the supply voltage returns to a valid level. The MAX6730UTSD3 + T can also be used to detect and reset in response to power supply voltage transients or surges.

The MAX6730UTSD3 + T also includes an integrated temperature sensor. The temperature sensor operates in conjunction with the supervisor circuits to reduce the reset trip point when the board temperature rises, protecting the system from a sudden under-voltage condition resulting from power supply throttling due to high temperature. The temperature sensor can also be used as an input to the system’s microcontroller to monitor the temperature of the board.

The MAX6730UTSD3 + T is available in a 3.3V or 5V supply configuration and comes in a small, space-saving MSOP-10 package. It is particularly well suited to portable and battery-powered applications where space is at a premium.

The MAX6730UTSD3 + T is a versatile supervisory circuit designed for a wide range of applications. It can be used to monitor supplies and protect processors and microcontrollers from premature reset events and also help protect the system from transient voltage surges. In addition, the integrated temperature sensor helps to protect against power supply throttling, making the MAX6730UTSD3 + T an ideal choice for any design where power supply and system temperature monitoring are critical.

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