LM809M3-2.93

Supervisors Overview

The LM809M3-2.93 is a voltage supervisor from Texas Instruments designed to monitor supply voltages and generate reset signals for microprocessors and digital systems. It features a fixed threshold voltage of 2.93V, ensuring accurate detection of under-voltage conditions. The device operates within a specified input voltage range and provides a push-pull or open-drain output configuration depending on the specific variant. It includes internal delay timers to prevent false triggering during power-up transients. The component is housed in standard surface-mount packages suitable for automated assembly processes.

Supervisors Feature Summary

• Monitors supply voltage levels with high accuracy
• Generates system reset signals upon undervoltage events
• Includes internal delay timer for noise immunity
• Available in compact surface-mount packages

Supervisors Applications

• Microprocessor reset circuits
• Battery-powered equipment monitoring
• Portable electronic devices
• Industrial control systems

Supervisors Procurement Notes

Verify the exact suffix 'M3' against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the 2.93V threshold matches the target application's requirements. Check for any recent obsolescence notices or alternative part recommendations from Texas Instruments before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a precise 2.93V supervision threshold is required. Consider the output drive capability and package constraints relative to the PCB layout. Evaluate the operating temperature range to ensure compatibility with the intended environmental conditions. Compare pinout configurations if replacing existing designs.

Supervisors Part Context

This part belongs to the LM809 family of voltage supervisors. These devices are commonly used in embedded systems where reliable power management is critical. The LM809 series offers various threshold options to suit different logic families and battery chemistries.

Supervisors Replacement Considerations

Consult the TI replacement matrix for direct equivalents. Verify pin compatibility and electrical specifications before substitution.

Supervisors FAQ

What is the typical response time of the LM809M3-2.93?

The response time is determined by the internal delay timer and the rate of voltage change, typically specified in microseconds in the datasheet.

Does the LM809M3-2.93 support manual reset functionality?

Check the specific datasheet version; some variants include a manual reset input pin while others do not.