onsemi

MAX809SN490T1G

MAX809SN490T1G Description

The MAX809SN490T1G is a single-channel voltage supervisor IC designed for power management applications. Manufactured by onsemi, this device is part of the Power Management (PMIC) category and is housed in a compact SOT23-3 package. It features a voltage threshold of 4.9V and monitors a single voltage channel, making it ideal for systems requiring precise voltage monitoring and control. The IC operates with a reset timeout of 140ms minimum, ensuring reliable performance in various electronic systems.

MAX809SN490T1G Features

• Voltage Monitoring: The MAX809SN490T1G is designed to monitor a single voltage channel with a threshold of 4.9V. This precise monitoring ensures that the system remains stable and operates within safe voltage limits.
• Reset Functionality: The IC features an active-low reset output, which is essential for initializing and resetting microprocessors, microcontrollers, and other digital systems. The reset timeout is a minimum of 140ms, providing ample time for the system to stabilize before the reset signal is released.
• Surface Mount Technology: The MAX809SN490T1G is available in a surface mount package (Tape & Reel), making it suitable for automated assembly processes and compact PCB designs.
• Compliance and Standards: The device is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It also carries an ECCN classification of EAR99, indicating compliance with export regulations.
• Moisture Sensitivity: The MAX809SN490T1G has a moisture sensitivity level (MSL) of 1 (Unlimited), making it suitable for storage and handling in various environments without the need for special precautions.

MAX809SN490T1G Applications

The MAX809SN490T1G is ideal for a variety of applications where precise voltage monitoring and reliable reset functionality are required. Some specific use cases include:

• Embedded Systems: In microcontroller-based systems, the MAX809SN490T1G ensures that the microcontroller is reset properly when the supply voltage drops below the threshold, preventing erratic behavior and potential damage.
• Power Supplies: For power supply units, the IC can monitor the output voltage and trigger a reset if the voltage falls out of the specified range, enhancing system reliability and safety.
• Industrial Control Systems: In industrial environments, the MAX809SN490T1G can be used to monitor the power supply of critical control systems, ensuring they operate within safe voltage limits and are reset appropriately when necessary.
• Consumer Electronics: In devices such as routers, modems, and other consumer electronics, the IC can help maintain system stability by monitoring the power supply and initiating a reset if the voltage drops unexpectedly.

Conclusion of MAX809SN490T1G

The MAX809SN490T1G is a robust and reliable voltage supervisor IC that offers precise voltage monitoring and reset functionality in a compact SOT23-3 package. Its 4.9V threshold and 140ms minimum reset timeout make it suitable for a wide range of applications, from embedded systems to industrial control systems. The device's compliance with environmental and safety standards, along with its surface mount packaging, ensures ease of integration into modern electronic designs. Despite being marked as obsolete, the MAX809SN490T1G remains a valuable component for applications requiring reliable voltage monitoring and reset control.