LM809M3X-2.93/NOPB

Supervisors Overview

The LM809M3X-2.93/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for microprocessor reset applications. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 2.93 V. The device provides an active-low, push-pull output with a reset delay time of 840 ms. 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 via active-low push-pull output
• Monitors single input voltage against fixed threshold
• Operates across extended industrial temperature ranges

Supervisors Applications

• Microprocessor reset circuits
• Voltage supervision in embedded systems
• Power management monitoring

Supervisors Procurement Notes

Verify the exact part number suffix and manufacturer documentation to confirm specifications. Ensure compatibility with existing board designs regarding package type and electrical parameters. Cross-reference with official datasheets for accurate threshold and delay times before integration.

Supervisors Selection Notes

Select this component when a fixed 2.93 V threshold is required for voltage monitoring. Consider the 840 ms reset delay and active-low output characteristics for timing requirements. Verify that the SOT-23-3 package fits the design constraints and that the operating temperature range meets environmental needs.

Supervisors Part Context

This part belongs to the LM809 series of 3-pin microprocessor reset circuits from Texas Instruments. It shares functional similarities with other variants in the series, differing primarily in threshold voltage settings. The NOPB suffix indicates lead-free construction compliant with RoHS standards.

Supervisors Replacement Considerations

LM809M3-2.93/NOPB is listed as an alternate for LM809M3-293.