LM809M3-2.63

Product Overview

Category

The LM809M3-2.63 belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• The LM809M3-2.63 is a low-power voltage supervisor with a fixed threshold voltage.
• It operates over a wide voltage range, making it suitable for various applications.
• This device offers accurate voltage monitoring and reset generation capabilities.
• It has a low quiescent current, ensuring minimal power consumption.
• The LM809M3-2.63 is available in a small SOT-23 package, making it suitable for space-constrained designs.

Package

The LM809M3-2.63 is packaged in an SOT-23 package.

Essence

The essence of the LM809M3-2.63 lies in its ability to monitor voltage levels and generate reset signals when necessary, ensuring proper functioning of electronic systems.

Packaging/Quantity

The LM809M3-2.63 is typically available in reels containing a specified quantity of devices.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Fixed Threshold Voltage: 2.63V
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active Low
• Reset Timeout Period: 200ms (typical)

Detailed Pin Configuration

The LM809M3-2.63 features three pins:

1. VDD: Connect this pin to the positive supply voltage.
2. GND: Connect this pin to the ground reference.
3. RESET: This pin outputs an active low signal when the monitored voltage falls below the threshold.

Functional Features

• Accurate voltage monitoring: The LM809M3-2.63 ensures precise monitoring of the supply voltage.
• Reset generation: It generates a reset signal when the voltage drops below the fixed threshold, allowing for proper system initialization.
• Low power consumption: With its low quiescent current, the LM809M3-2.63 minimizes power consumption in battery-powered applications.
• Wide operating voltage range: It can operate over a wide range of supply voltages, enhancing its versatility.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring and reset generation.
• Low power consumption.
• Wide operating voltage range.
• Small package size for space-constrained designs.

Disadvantages

• Fixed threshold voltage may not be suitable for all applications requiring different voltage levels.
• Lack of adjustable timeout period for reset signals.

Working Principles

The LM809M3-2.63 works by comparing the supply voltage with the fixed threshold voltage. When the supply voltage falls below the threshold, the RESET pin outputs an active low signal, indicating a voltage fault. This signal can be used to trigger a system reset or initiate appropriate actions to handle the voltage drop.

Detailed Application Field Plans

The LM809M3-2.63 finds applications in various fields, including:

1. Battery-powered devices: It ensures proper voltage monitoring and reset generation in portable electronics, maximizing battery life.
2. Industrial control systems: The LM809M3-2.63 helps maintain stable voltage levels in critical control circuits, preventing malfunctions.
3. Automotive electronics: It plays a crucial role in monitoring and controlling voltage levels in automotive systems, ensuring reliable operation.

Detailed and Complete Alternative Models

1. LM809M3-2.93: Similar to LM809M3-2.63 but with a higher fixed threshold voltage of 2.93V.
2. LM809M3-2.23: Similar to LM809M3-2.63 but with a lower fixed threshold voltage of 2.23V.
3. LM809M3-3.08: Similar to LM809M3-2.63 but with a higher fixed threshold voltage of 3.08V.

These alternative models provide flexibility in choosing the appropriate voltage threshold for specific applications.

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