Texas Instruments

LM809M3-4.63

LM809M3-4.63 Description

The LM809M3-4.63 is a single-channel voltage supervisor IC designed by Texas Instruments, featuring a voltage threshold of 4.63V. This device is specifically tailored for power management applications where precise voltage monitoring and reliable reset functionality are crucial. The LM809M3-4.63 is housed in a compact SOT23-3 package, making it suitable for space-constrained designs. It operates with a reset timeout of at least 140ms, ensuring stable system performance during power-up and brown-out conditions.

LM809M3-4.63 Features

• Voltage Monitoring: The LM809M3-4.63 is designed to monitor a single voltage rail with a threshold of 4.63V, providing accurate and reliable supervision.
• Reset Functionality: The reset output is active low, ensuring compatibility with a wide range of microcontrollers and processors. The minimum reset timeout of 140ms guarantees that the system remains in a safe state during power transitions.
• Surface Mount Technology: The device is available in a surface mount package, facilitating easy integration into modern PCB designs.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the LM809M3-4.63 is suitable for a variety of manufacturing environments without the need for special handling.
• Compliance: The LM809M3-4.63 is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations and standards.

LM809M3-4.63 Applications

The LM809M3-4.63 is ideal for applications requiring precise voltage monitoring and reliable reset functionality. Some specific use cases include:

• Power Supplies: Ensuring stable operation and protection against voltage fluctuations in power supply units.
• Embedded Systems: Providing robust voltage supervision for microcontrollers and processors in embedded systems.
• Consumer Electronics: Monitoring power rails in devices such as smartphones, tablets, and other portable electronics.
• Industrial Control Systems: Ensuring reliable operation in industrial environments where voltage stability is critical.

Conclusion of LM809M3-4.63

The LM809M3-4.63 from Texas Instruments is a robust and reliable voltage supervisor IC, offering precise voltage monitoring and reliable reset functionality. Its compact SOT23-3 package and surface mount technology make it suitable for a wide range of applications, from consumer electronics to industrial control systems. Despite being marked as obsolete, the LM809M3-4.63 remains a valuable component for applications requiring a single-channel voltage supervisor with a 4.63V threshold.