STM704RDS6F

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PMIC - Supervisors

PMIC (Power Management Integrated Circuit) and Supervisors are two parts that play a key role in the power management of any embedded system. Supervisors provide the ability to monitor different power states, detect faults and initiate corrective action. This article looks at the STM704RDS6F, a PMIC and Supervisors product from STMicroelectronics, and looks at the application field and working principle.

STMicroelectronics’ STM704RDS6F is a 4-channel voltage supervisor with reset precision and adjustable Reset width. It is an efficient and cost-effective PMIC that can be used in application microprocessors, microcontrollers, among others. It is designed to ensure safe, accurate and reliable voltage monitoring and alarms in microprocessors and microcontrollers. It provides maximum current capacity of 400mA with an adjustment range of 3.3V to 17V.

The STM704RDS6F features a configurable pull-up current, which allows it to operate in a wide range of applications including motor control, factory automation equipment, air conditioners and portable devices. The wide range of voltages ensures it can work with multiple input voltages.

The STM704RDS6F is also very useful in circuit protection with its built-in protection mechanisms. It has a temperature range of -40°C to +125°C, and provides protection from overload, over-voltage, under-voltage, over-current, and over-temperature. It also has an adjustable reset pulse width from 60µs to 4ms, enabling the user to adjust it for different application needs.

In terms of its working principle, the STM704RDS6F continuously monitors input voltage and provides a logic-low reset signal when the monitored voltage drops below a preset threshold. This reset signal can then be used to trigger a reset or shutdown of the system. In addition, the adjustable reset pulse width ensures that there is enough time for the system to reset itself before the voltage drops too low.

The STM704RDS6F also features a watchdog timer which continually monitors the system, and will reset it in the event of an error. Additionally, the STM704RDS6F has an open-drain output, which allows it to be configured as an alarm output, alerting the user to any faults or errors in the system. Furthermore, the STM704RDS6F has a K-factor circuit, which monitors multiple input voltage levels for accurate reset threshold detection.

In terms of its application fields, the STM704RDS6F can be used in a wide range of embedded systems, including consumer electronics, industrial control, medical, and communications infrastructures. It is highly efficient and cost effective when compared to other power management integrated circuits, and is ideal for use in space-constrained applications such as cell phones, PDAs, and Ultra-Low Power devices.

In conclusion, the STM704RDS6F is an advanced PMIC and Supervisors solution which provides reliable and accurate monitoring of system voltages and reset operations. Its adjustable reset pulse width, open-drain output and K-factor circuit make it an ideal choice for a range of embedded systems, while its broad temperature range makes it ideal for use in extreme environments.

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