LM809M3-3.08

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LM809M3-3.08

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IC SUPERVISOR 1 CHANNEL SOT23-3

  • HerstellerTexas Instruments

  • Herstellerteil #LM809M3-3.08

  • Auf Lager2708

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Spezifikationen

Attribut Wert
Part Status Obsolete
Base Product Number LM809
DigiKey Programmable Not Verified
Type Simple Reset/Power-On Reset
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 TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23-3
Packaging Cut Tape (CT), Tape & Reel (TR)
Number of Voltages Monitored 1

Übersicht

Description

The LM809M3-3.08 is a voltage supervisor integrated circuit designed to monitor the power supply voltage in microprocessor systems. It ensures that the system operates correctly by resetting the processor when the supply voltage drops below a specified threshold, which is crucial for preventing data corruption or undefined behavior. The "-3.08" designation typically indicates the voltage threshold level or version variant of the device. This IC generally features low power consumption, making it suitable for battery-operated applications. It comes in a compact 3-pin SOT-23 package, allowing for easy integration into various designs. With a broad operating temperature range and robust performance, the LM809M3-3.08 is widely used in consumer electronics, industrial controls, and automotive systems to enhance reliability and performance.

Equivalent

The LM809M3-3.08 is a voltage supervisor or reset IC. Equivalent products with similar functionality include the following:
1. MAX809 series from Maxim Integrated
2. ADM809 series from Analog Devices
3. MCP120 from Microchip Technology
These equivalents monitor the supply voltage and provide a reset signal to microcontrollers and other digital systems when the voltage falls below a specified threshold. Always verify the specifications and pin compatibility before substituting.

Features

The LM809M3-3.08 is a microprocessor supervisory circuit designed to monitor power supply levels in digital systems. Here are its key features:
1. Voltage Monitoring: It is designed to monitor a fixed threshold voltage of 3.08V, which is suitable for 3V systems.
2. Reset Output: Provides a reset signal when the monitored voltage falls below the threshold, ensuring that the microprocessor is properly reset under low voltage conditions.
3. Manual Reset Input: Allows external control of the reset function, enabling manual initiation of the reset process.
4. Low Supply Current: Features low quiescent current, making it ideal for battery-powered applications to conserve energy.
5. Precision Monitoring: Offers high accuracy in voltage detection to ensure reliable operation of the supervised system.
6. Temperature Range: Operates over a wide temperature range, ensuring functionality in diverse environmental conditions.
7. Compact Package: Available in a small SOT-23 package, facilitating easy integration into space-constrained designs.
These features make the LM809M3-3.08 suitable for safeguarding microprocessors by ensuring they operate within specified voltage levels.

Pinout

The LM809M3-3.08 is a voltage supervisory IC designed to monitor the voltage level of a power supply and issue a reset signal when the voltage falls below a specified threshold. It is typically used in microprocessor and microcontroller applications to ensure proper startup and operation.
Pin Count:
The LM809M3-3.08 comes in a SOT-23 package with 3 pins.
Pin Functions:
1. VCC (Pin 1): This is the power supply pin where the monitored voltage is connected. The IC monitors the voltage at this pin.
2. GND (Pin 2): This is the ground pin and is connected to the system ground.
3. RESET (Pin 3): This is the reset output pin. It is an active-low output that goes low when the VCC voltage drops below the threshold of 3.08V and stays low for a fixed period after the voltage returns above the threshold, ensuring a proper reset of the system.
The LM809M3-3.08 helps maintain system reliability by preventing operation under low-voltage conditions.

Manufacturer

The LM809M3-3.08 is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which they sell to electronics designers and manufacturers globally. Founded in 1930 and headquartered in Dallas, Texas, TI is one of the largest semiconductor companies in the world, known for its wide range of products, including analog chips, embedded processors, and digital light processing technology. The company serves various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is recognized for its innovation and focus on developing technologies that are essential for the advancement of various electronic applications.

Application

The LM809M3-3.08 is a microprocessor supervisory circuit primarily used in applications requiring reliable system reset functionality. It is designed to monitor the supply voltage in digital systems and provide a reset signal to the processor if the voltage drops below a certain threshold, ensuring system stability. Common application areas include:
1. Embedded Systems: Ensures proper initialization and operation.
2. Consumer Electronics: Provides reset management in devices like smartphones and tablets.
3. Industrial Control Systems: Maintains stability in harsh environments.
4. Automotive Systems: Protects against voltage fluctuations in vehicles.
5. Networking Equipment: Ensures reliable operation in routers and switches.
Its compact design and low power consumption make it suitable for space-constrained applications.

Package

The LM809M3-3.08 is typically available in a SOT-23 package. This is a small outline transistor package that is commonly used for surface mounting on circuit boards.

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