LM809M3-4.00/NOPB

Product Overview

Category

The LM809M3-4.00/NOPB belongs to the category of voltage supervisors.

Use

This product is primarily used for monitoring and supervising the voltage levels in electronic circuits.

Characteristics

• Voltage Range: 4.00V
• Package Type: SOT-23
• Supply Current: 10µA (typical)
• Reset Threshold Accuracy: ±1.5%
• Operating Temperature Range: -40°C to +85°C
• Power-On Reset Delay Time: 200ms (typical)

Package

The LM809M3-4.00/NOPB is available in a small-outline transistor (SOT-23) package.

Essence

The essence of this product lies in its ability to provide accurate voltage monitoring and reset generation in various electronic applications.

Packaging/Quantity

The LM809M3-4.00/NOPB is typically packaged in reels, with each reel containing a specific quantity of units. The exact packaging and quantity details can be obtained from the manufacturer's specifications.

Specifications

• Supply Voltage Range: 1.0V to 6.0V
• Reset Threshold Voltage: 4.00V
• Quiescent Current: 10µA (typical)
• Reset Timeout Period: 140ms (typical)
• Active-Low Reset Output
• Low Power Consumption
• Small Package Size

Pin Configuration

The LM809M3-4.00/NOPB features a standard SOT-23 package with three pins:

1. VDD: Supply Voltage Input
2. GND: Ground Connection
3. RESET: Active-Low Reset Output

Functional Features

• Voltage Monitoring: The LM809M3-4.00/NOPB continuously monitors the supply voltage and generates a reset signal when it falls below the specified threshold.
• Reset Generation: Upon detecting a low voltage condition, the device asserts an active-low reset signal to initiate system reset or other necessary actions.
• Low Power Consumption: The product operates with minimal power consumption, making it suitable for battery-powered applications.
• Small Package Size: The compact SOT-23 package allows for easy integration into space-constrained designs.

Advantages and Disadvantages

Advantages

• Accurate Voltage Monitoring
• Low Quiescent Current
• Wide Supply Voltage Range
• Small Package Size

Disadvantages

• Fixed Reset Threshold Voltage (4.00V)
• Limited Reset Timeout Period (140ms)

Working Principles

The LM809M3-4.00/NOPB utilizes a precision voltage reference and comparator circuitry to monitor the input voltage. When the voltage drops below the preset threshold, the comparator triggers the reset output, initiating a system reset or other required actions. The device operates with low power consumption, ensuring efficient performance in various applications.

Detailed Application Field Plans

The LM809M3-4.00/NOPB finds extensive use in numerous electronic systems that require reliable voltage monitoring and reset functionality. Some potential application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper system initialization and preventing erratic behavior during power-up or voltage fluctuations.
2. Embedded Systems: Providing voltage supervision to safeguard critical components and maintain system integrity.
3. Industrial Control Systems: Monitoring power supply voltages to prevent damage to sensitive equipment and ensure safe operation.
4. Automotive Electronics: Enabling reliable reset generation in automotive control units to enhance overall system reliability.
5. Battery-Powered Devices: Protecting battery life by initiating appropriate actions when the voltage drops below a certain level.

Detailed and Complete Alternative Models

1. LM809M3-3.08/NOPB: Similar to LM809M3-4.00/NOPB, but with a lower reset threshold voltage of 3.08V.
2. LM809M3-5.00/NOPB: Similar to LM809M3-4.00/NOPB, but with a higher reset threshold voltage of 5.00V.
3. LM809M3-3.00/NOPB: Similar to LM809M3-4.00/NOPB, but with a lower reset threshold voltage of 3.00V.
4. LM809M3-4.63/NOPB: Similar to LM809M3-4.00/NOPB, but with a slightly higher reset threshold voltage of 4.63V.

These alternative models provide flexibility in choosing the appropriate reset threshold voltage for specific application requirements.

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