LM809M3X-2.93/NOPB

Product Overview

Category

LM809M3X-2.93/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: 2.93V
• 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 and Quantity

The LM809M3X-2.93/NOPB is available in a small outline transistor (SOT-23) package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 1.0V to 6.0V
• Reset Threshold Voltage: 2.93V
• Reset Timeout Period: 140ms (minimum)
• Quiescent Current: 10µA (typical)
• Active Low Output
• Open Drain Output Configuration

Pin Configuration

The LM809M3X-2.93/NOPB has 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 a low signal when the monitored voltage falls below the reset threshold.

Functional Features

• Monitors the supply voltage and provides a reset signal when it drops below the specified threshold.
• The reset signal remains active until the supply voltage rises above the threshold and a timeout period elapses.
• Open drain output allows flexibility in connecting to different microcontrollers or logic devices.

Advantages

• Low quiescent current consumption, making it suitable for battery-powered applications.
• Accurate reset threshold voltage ensures reliable monitoring of the supply voltage.
• Wide operating temperature range allows usage in various environmental conditions.

Disadvantages

• The reset timeout period may not be adjustable, limiting its flexibility in certain applications.
• Limited availability of alternative models with different reset threshold voltages.

Working Principles

The LM809M3X-2.93/NOPB operates by comparing the supply voltage with the preset threshold voltage. When the supply voltage drops below the threshold, the reset pin is pulled low, indicating a reset condition. The reset signal remains active until the supply voltage rises above the threshold and a fixed timeout period elapses.

Application Field Plans

The LM809M3X-2.93/NOPB finds applications in various electronic systems where reliable voltage monitoring is crucial. Some potential application fields include: - Microcontroller-based systems - Power management circuits - Battery-powered devices - Industrial control systems

Alternative Models

While the LM809M3X-2.93/NOPB offers a specific reset threshold voltage of 2.93V, there are alternative models available from the same manufacturer or other suppliers that offer different reset threshold voltages. Some alternative models include: - LM809M3X-3.08/NOPB (Reset Threshold: 3.08V) - LM809M3X-2.63/NOPB (Reset Threshold: 2.63V) - LM809M3X-3.00/NOPB (Reset Threshold: 3.00V)

In conclusion, the LM809M3X-2.93/NOPB is a voltage supervisor IC that provides accurate monitoring and reset functionality for electronic circuits. Its low power consumption, wide operating temperature range, and small package make it suitable for various applications in different industries.