STM810SWX6F

Supervisors Overview

The STM810SWX6F is a voltage supervisory circuit manufactured by STMicroelectronics, designed to monitor power supply integrity in electronic systems. It operates within a maximum supply voltage of 5.5 V and features a threshold voltage of 2.93 V with an overvoltage threshold of 2.96 V. The device provides an active high, push-pull reset output and includes a reset delay time of 210 ms. It consumes a typical operating supply current of 15 uA and functions reliably across an industrial temperature range from -40 C to +85 C. Packaged in a compact SOT-23-3 surface-mount format, it lacks manual reset, watchdog timer, or chip enable inputs.

Supervisors Feature Summary

• Monitors supply voltage levels and asserts a reset signal when the input drops below the preset threshold
• Provides an active high push-pull output configuration for direct interface with digital logic
• Operates with low supply current consumption suitable for battery-powered applications
• Ensures stable reset assertion down to a minimum supply voltage of 1.0 V

Supervisors Applications

• Monitoring 3 V and 3.3 V power supplies in embedded systems
• Providing power-on reset signals for microprocessors and microcontrollers
• Supervising voltage rails in industrial control equipment
• Ensuring system reliability in automotive electronics requiring robust reset management

Supervisors Procurement Notes

Verify the exact threshold voltage and package type against the manufacturer's datasheet before integration. Confirm that the active high output polarity matches the target system requirements. Ensure the operating temperature range meets the environmental conditions of the final application. Check for RoHS compliance status if required by regulatory standards. Validate that no manual reset or watchdog functionality is needed, as this specific variant does not include these features.

Supervisors Selection Notes

Select this component when a simple, low-power voltage supervisor with an active high output is required. It is suitable for applications monitoring 3 V or 3.3 V rails where a precise 2.93 V threshold is necessary. Consider the SOT-23-3 package for space-constrained designs. Note that alternative variants in the STM810 series may offer different output polarities or additional features like manual reset inputs, so verify functional compatibility with the specific design needs.

Supervisors Part Context

This part belongs to the STM810 family of microprocessor reset circuits from STMicroelectronics. These devices are designed for low-power supervision of single power supplies. The family typically includes variants with different threshold voltages and output configurations to support various standard supply rails such as 3 V, 3.3 V, and 5 V. They are widely used in consumer, industrial, and automotive electronics to ensure proper system initialization and protection against brown-out conditions.

Supervisors Replacement Considerations

Check for other STM810 variants with compatible threshold voltages and output types. Verify pinout compatibility if substituting with similar packages. Ensure the replacement part meets the same electrical specifications and temperature ratings.