LM809M3X-3.08/NOPB

$0.27

Description：LM809 3-PIN VOLTAGE SUPERVISOR (
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:797fa6fce945 Category: Supervisors Brand: National Semiconductor

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Product introduction

LM809M3X-3.08/NOPB is listed in the Supervisors range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is LM809 3-PIN VOLTAGE SUPERVISOR (. Review the specifications below when checking this part for your BOM.

Supervisors specifications for LM809M3X-3.08/NOPB

Description：LM809 3-PIN VOLTAGE SUPERVISOR (
Series：-
Mfr：National Semiconductor
Package：Bulk
Type：Simple Reset/Power-On Reset
Number of Voltages Monitored：1
Voltage - Threshold：3.08V
Output：Push-Pull, Totem Pole
Reset：Active Low
Reset Timeout：140ms Minimum
Operating Temperature：-40°C ~ 105°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

Supervisors datasheet and documents for LM809M3X-3.08/NOPB

LM809M3X-3.08/NOPB

Supervisors Overview

The LM809M3X-3.08/NOPB is a 3-pin microprocessor reset circuit manufactured by Texas Instruments, formerly National Semiconductor. It provides a supervised voltage threshold of 3.08 V for single-input monitoring. The device features an active-low, push-pull output and operates within a supply voltage range up to 5.5 V. It includes a fixed reset delay time of 240 ms and lacks manual reset or watchdog timer functions. The component is housed in a SOT-23-3 package and supports surface-mount installation across an operating temperature range of -40°C to +105°C.

Supervisors Feature Summary

Provides precise voltage supervision with a factory-calibrated threshold of 3.08 V
Delivers active-low reset signal via push-pull output architecture
Ensures system stability through a fixed 240 ms reset delay period

Supervisors Applications

Digital system voltage monitoring
Microprocessor reset signal generation
Battery-powered application supervision

Supervisors Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the specific suffix indicates the 3.08 V threshold variant. Ensure the NOPB suffix confirms lead-free and RoHS compliance status prior to procurement integration.

Supervisors Selection Notes

Select this component when a low-cost, single-channel supervisor is required for voltages near 3.08 V. Consider the 240 ms delay duration against system startup requirements. Verify that the active-low output polarity matches the target processor's reset input logic requirements.

Supervisors Part Context

This part belongs to the LM809/LM810 family of 3-pin microprocessor reset circuits. The LM809 variant specifically provides an active-low reset output, whereas the LM810 offers an active-high configuration. Both share identical electrical characteristics and packaging options, differing only in output state.