LM809M3X-2.93/NOPB

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Texas Instruments

3-PIN VOLTAGE SUPERVISOR (RESET IC) WITH ACTIVE-LOW, PUSH-PULL RESET FOR SUPPLY MONITORING

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LM809M3X-2.93/NOPB

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Texas Instruments

3-PIN VOLTAGE SUPERVISOR (RESET IC) WITH ACTIVE-LOW, PUSH-PULL RESET FOR SUPPLY MONITORING

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM809 Series

The LM809 and LM810 microprocessors supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down and brown-out conditions.

The function of the LM809 and LM810 are to monitor the VCCsupply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240 ms after VCCrises above the threshold. The LM809 has an active-lowRESEToutput, while the LM810 has an active-high RESET output.

Seven standard reset voltage options are available, suitable for monitoring 5-V, 3.3-V, and 3-V supply voltages.

Technical Specifications

Parameters and characteristics for this part

Specification	LM809M3X-2.93/NOPB

Mounting Type	Surface Mount
Number of Voltages Monitored	1
Operating Temperature (Max)	105 °C
Operating Temperature (Min)	-40 °C
Output	Push-Pull, Totem Pole
Package / Case	TO-236-3, SOT-23-3, SC-59
Package Name	SOT-23-3
Reset	Active Low
Reset Timeout (Minimum)	140 ms
Type	Simple Reset/Power-On Reset
Voltage - Threshold	2.93 V

LM809 Series

3-pin voltage supervisor (reset IC) with active-low, push-pull reset for supply monitoring

Part	Voltage - Threshold	Reset	Package / Case	Package Name	Mounting Type	Operating Temperature (Max)	Operating Temperature (Min)	Number of Voltages Monitored	Reset Timeout (Minimum)	Type	Output
Texas Instruments LM809M3-2.45/NOPB	2.45 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3X-3.08/NOPB	3.08 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3X-4.63/NOPB	4.63 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3X-2.93/NOPB	2.93 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3-3.08/NOPB	3.08 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3X-2.63/NOPB	2.63 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3X-2.63	2.63 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3-4.63	4.63 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3-4.00/NOPB	4 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole
Texas Instruments LM809M3X-4.63	4.63 V	Active Low	SC-59 SOT-23-3 TO-236-3	SOT-23-3	Surface Mount	105 °C	-40 °C	1	140 ms	Simple Reset/Power-On Reset	Push-Pull Totem Pole