MAX6712TEXS+

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Modern microprocessors use a highly integrated system-on-a-chip (SoC) which is composed of processor core, embedded non-volatile memory, high-speed integrated circuits to provide familiar off-the-shelf peripherals, and lastly, an external monitoring system that detects and controls the state of the processor. When the peripherals start up, the SoC applications can be enhanced by the use of a supervisor, such as the MAX6712TEXS+. It is a high-performance, field-programmable supervisory circuit that provides reliability during startup and low-voltage monitoring for microprocessor-based systems.

The working principle of the MAX6712TEXS+ is quite simple. It uses a voltage monitor to detect when the supply voltage drops below a set threshold. When this detection occurs, it immediately alerts the microprocessor. The alert initiates a hardware reset and pulls the microprocessor low so that it restarts the system. This holds the microprocessor in reset while the supply voltage is below the threshold, preventing it from running code that is no longer valid. At the same time, the MAX6712TEXS+ monitors the reset pin, and when the reset pin is high, it asserts the processor reset again until the supply voltage reaches the correct operating range.

The MAX6712TEXS+ is suitable for a wide range of applications. It can be used in PC and embedded systems, data acquisition systems, single-board computers, industrial controllers, and other digital control systems. It is also ideal for use in battery-backed or standby power supply systems, where it offers an efficient solution for monitoring battery-derived supply voltages. Furthermore, its flexible configuration options enable it to adapt to any system configuration.

The MAX6712TEXS+ is a versatile supervisor with a variety of features. It comes equipped with an Enhanced System Reset capability that allows for system reset on any number of reset signals. Its Ultra Auxiliary Reset logic provides an additional reset for power-up, power-down, or battery failure reset. The MAX6712TEXS+ also features Fault Checking Logic. This feature detects short circuits, open circuits, and incorrect logic levels on all logic, system control, and reset lines, and can also detect a stuck reset line.

The MAX6712TEXS+ has three levels of reset synchronization. The first level is called Core Start-Up, which guarantees system reset during the start-up phase of the microprocessor. This ensures that the device is properly reset before the core is powered up and begins execution of the system code. The second level is called the Pro-Level AC Detection, which monitors the system mains voltage and ensures a reset in case of mains power brownouts. The third level is the Ultra Reset that provides an additional reset on power-up, power-down, or battery failure. This reset is independent of the system reset and is driven by a dedicated logic signal.

The MAX6712TEXS+ has a variety of safety features, including an ESD protection circuit, which prevents electrostatic damage to the integrated circuit. The supervisor also has an internal temperature sensor that will shut down the system if the temperature exceeds a predetermined threshold. The supervisor also has an over-temperature reset feature that provides a reset if the temperature exceeds the reliable operating temperature range. Lastly, the supervisor has a fast response time, which prevents system lockups during a power glitch.

In conclusion, the MAX6712TEXS+ provides dependable performance during startup and low-voltage monitoring for microprocessor-based systems. It is suitable for many applications in battery-backed or standby power supply systems, PC and embedded systems, data acquisition systems, single-board computers, industrial controllers, and other digital control systems. Its flexible configuration options and comprehensive set of safety features make the MAX6712TEXS+ an excellent choice for reliable system monitoring.

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