STMicroelectronics

STM1817SWX7F

STM1817SWX7F Description

The STM1817SWX7F is a high-performance, single-channel power supply supervisor IC designed by STMicroelectronics. This device is specifically engineered to monitor a single voltage supply and ensure reliable system operation by providing accurate power monitoring and reset functionalities. The STM1817SWX7F is housed in a compact SOT23-3 package, making it ideal for space-constrained applications. It features a voltage threshold of 2.88V, ensuring precise monitoring of power supplies. The reset timeout is set at a minimum of 100ms, providing sufficient time for system stabilization during power-up or brown-out conditions. This IC operates in a surface mount configuration, facilitating easy integration into modern printed circuit board designs.

STM1817SWX7F Features

• Voltage Monitoring: The STM1817SWX7F monitors a single voltage supply with a threshold of 2.88V, ensuring that the system remains within the specified operating voltage range.
• Reset Functionality: The device provides an active-high reset output with a minimum timeout of 100ms. This feature is crucial for reliable system operation, as it allows for a controlled reset sequence during power-up or voltage drop events.
• Compact Packaging: Housed in a SOT23-3 package, the STM1817SWX7F is suitable for applications where space is at a premium. The small form factor does not compromise performance, making it a versatile choice for various electronic designs.
• Surface Mount Technology: The surface mount configuration of the STM1817SWX7F simplifies the manufacturing process and enhances the reliability of the final product.
• Compliance and Standards: The STM1817SWX7F is REACH unaffected and RoHS3 compliant, adhering to stringent environmental regulations. It also carries an ECCN classification of EAR99, facilitating international trade and compliance with export regulations.
• Moisture Sensitivity Level: The device has an MSL rating of 1 (unlimited), indicating that it is not sensitive to moisture, which is beneficial for long-term storage and handling.

STM1817SWX7F Applications

The STM1817SWX7F is well-suited for a variety of applications where reliable power monitoring and reset functions are essential. Some specific use cases include:

• Consumer Electronics: In devices such as smartphones, tablets, and smart home appliances, the STM1817SWX7F ensures that the power supply remains within safe operating limits, preventing system crashes and data loss.
• Industrial Control Systems: For monitoring critical power supplies in industrial automation and control systems, the STM1817SWX7F provides robust protection against voltage fluctuations and power anomalies.
• Telecommunications: In base stations and networking equipment, the device ensures reliable operation by monitoring power supplies and initiating resets when necessary, thereby maintaining system integrity and uptime.
• Automotive Electronics: The STM1817SWX7F can be used in automotive applications to monitor power supplies for electronic control units (ECUs), ensuring reliable operation and compliance with automotive standards.

Conclusion of STM1817SWX7F

The STM1817SWX7F is a reliable and compact power supply supervisor IC that offers precise voltage monitoring and robust reset functionality. Its compact SOT23-3 package and surface mount configuration make it an ideal choice for a wide range of applications, from consumer electronics to industrial control systems. The device's compliance with environmental regulations and its moisture sensitivity level of 1 (unlimited) further enhance its suitability for various operating conditions. The STM1817SWX7F stands out for its high performance and reliability, making it a preferred choice for designers seeking a dependable power management solution.