LM809M3-2.45/NOPB

Supervisors Overview

The LM809M3-2.45/NOPB is a voltage supervisory integrated circuit manufactured by Texas Instruments, designed for monitoring single power supply rails. It operates within a maximum supply voltage of 5.5 V and features an active-low, push-pull output. The device provides a reset delay time of 240 ms and maintains an accuracy of 5%. It is housed in a SOT-23-3 surface-mount package and supports an operating temperature range from -40°C to +105°C.

Supervisors Feature Summary

• Provides reliable system reset generation through active-low push-pull output configuration
• Ensures precise voltage monitoring with specified threshold accuracy
• Supports extended industrial temperature operation ranges

Supervisors Applications

• Portable equipment power management
• Battery-powered systems supervision
• Microprocessor reset circuits

Supervisors Procurement Notes

Verify the specific threshold voltage suffix matches the required design value. Confirm RoHS compliance status and packaging options such as tape and reel or cut tape availability. Ensure the SOT-23-3 footprint aligns with the target PCB layout constraints before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a single-channel supervisor with active-low output is required. Consider the 240 ms reset delay and 5% accuracy specifications against system timing requirements. Evaluate the SOT-23-3 package size for space-constrained designs requiring surface-mount installation.

Supervisors Part Context

This part belongs to the LM809 family of simple reset supervisors from Texas Instruments. The family offers various fixed threshold voltages to accommodate different rail monitoring needs. The NOPB suffix indicates lead-free and RoHS-compliant manufacturing standards consistent with current environmental regulations.

Supervisors Replacement Considerations

Consult official substitution guides for alternative threshold variants within the LM809 series. Verify pinout compatibility and electrical parameter alignment before replacing existing components in established designs.