MAX6756UKWD0+T

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The MAX6756UKWD0+T is a high performance supervisor device designed for applications needing reliable power on and power off reset. It is derived from the widely used MAX6756, but provides a higher precision for both reset timing accuracy and temperature coefficients. The MAX6756UKWD0+T is from a family of Power Management ICs (PMICs) Supervisors and is ideally designed for use in hot-swappable FPGA/CPLD, battery management, and other applications requiring autonomous operation with reliable voltage monitoring and reset control.

The MAX6756UKWD0+T contains a low drop-out voltage supervisor with a voltage-monitored circuit that can detect power-supply, battery, or voltage input-monitoring errors. It provides active-low RESET and RESET output signals. A push button power off and push button reset input (ON/OFF) is also provided. It includes a watchdog timer and temperature monitor. The MAX6756UKWD0+T provides application flexibility with the option to set user-selectable reset thresholds and reset output logic.

The application field of MAX6756UKWD0+T requires careful consideration of recommended operating conditions, as well as the products’ input/output electrical characteristics, power supply and environmental conditions. The supervisor device provides a reset timer accuracy of 0.5% from 25°C and a maximum voltage monitoring error of 0.2% and wide operating temperature range of -40°C to + 125°C. Consequently, it is suitable for high temperature, low voltage applications.

The MAX6756UKWD0+T uses an active high logic and RESET output stays active until VCC is higher than the reset threshold for an extended period. The RESET output ensures that the system is properly initialized and held in reset for at least the amount of time specified by the manual. In addition, it can also be used to detect an over-voltage or low-current condition on the VCC and reset the system accordingly. The push-button reset and power-off input further enhances user-defined reset and power-off behavior.

The MAX6756UKWD0+T has an integrated watchdog timer and temperature monitor, to detect any abnormal conditions in the system and reset the device. The watchdog timer is a circuit that monitors the system and will reset the system in case of unexpected failures like hardware or software failures. The temperature monitor, in addition to resetting the system in case of excessive temperature, also provides an active-high output signal with temperature alarm.

In conclusion, the MAX6756UKWD0+T is an ideal solution for applications requiring reliable power on and power off reset, voltage-monitoring and temperature-sensing that can operate in extreme temperatures. By combining the flexible reset threshold and reset output logic, push-button reset/power-off input and active watchdog-timer, the MAX6756UKWD0+T provides a robust solution for FPGA/CPLD and battery management applications.

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