STM812RW16F

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.63V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-253-4, TO-253AA
Supplier Device Package:	SOT-143-4
Base Part Number:	STM812

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Introduction:The STM812RW16F is a Fully Integrated Supervisory Circuit designed to be used as a watchdog in a wide range of applications. It features an analog temperature sensor and a voltage supervisor that provide integrated temperature monitoring and voltage monitoring with a single chip solution.Working Principle:The STM812RW16F works by actively monitoring both temperature and voltage of the system and triggering an interrupt when either the temperature or voltage exceeds the configured threshold. Temperature monitoring and voltage monitoring are two critically important functions in a range of applications and are essential in helping to ensure that the system is operating safely and reliably.At its core, the STM812RW16F works by monitoring and comparing input voltage, temperature and other environmental parameters (e.g. humidity, wind speed) against predetermined thresholds, which are set at the time of manufacturing or configuration. Whenever an input parameter exceeds the configured threshold, an interrupt is triggered to alert the microcontroller. At the centre of the STM812RW16F is a Power-On/Off supervisor IC that provides voltage and temperature monitoring with a single chip solution. This particular model offers two combinations of voltage and temperature monitoring: down to 1.75V up to 105°C and down to 1.9V up to 125°C.The STM812RW16F also includes an I2C interface that allows for the configuration of the thresholds and other parameter values (especially when using the magnetic set voltage feature). Using I2C, the microcontroller can easily access and modify the various configuration settings. Applications:The STM812RW16F is designed for a wide range of applications and can be used in a variety of situations. The most common applications include:

• Processor voltage and temperature monitoring – The integrated voltage and temperature monitors in the STM812RW16F can be used to monitor processor voltage and temperature, ensuring that the processor is operating within safe limits. The integrated temperature monitoring is especially useful for preventing the processor from overheating.
• Power supply and circuit protection – The STM812RW16F can be used to monitor power supply voltages and temperatures, providing an extra level of protection for sensitive components in a given system. The STM812RW16F can also be used to monitor other power supply parameters that can help to ensure that the system is operating as expected and within safe limits.
• Environmental monitoring – The STM812RW16F can also be used to monitor environmental conditions such as humidity, wind speed, and other conditions (with the use of an external sensor). This can be useful for monitoring systems that operate in an environmentally hostile environment.
• Data logging – The STM812RW16F can be used for data logging in a range of applications, such as monitoring system temperature and voltage over time.
• Automatic system shutdown – The STM812RW16F can be used to trigger an automatic system shutdown when either the temperature or voltage exceeds the configured thresholds. This can help to ensure that the system is operating within safe limits, even during a power outage.

Conclusion:The STM812RW16F is a versatile, Fully Integrated Supervisory Circuit that can be used for a variety of applications. It offers integrated voltage and temperature monitors, as well as an I2C interface for easy configuration. Furthermore, the STM812RW16F is designed to provide an extra level of protection and monitoring to ensure that the system is operating within safe limits, even during a power outage. It is therefore an ideal solution for a wide range of applications which require critical monitoring or data logging.

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