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LM809M3-3.08
+StücklisteIC SUPERVISOR 1 CHANNEL SOT23-3
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HerstellerTexas Instruments
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Herstellerteil #LM809M3-3.08
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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
Equivalent
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
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
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
Application
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.