ADM809-5LART-REEL

Product Overview

Category

ADM809-5LART-REEL belongs to the category of voltage supervisors or reset ICs.

Use

This product is primarily used in electronic circuits to monitor the power supply voltage and ensure proper system operation. It provides a reset signal to the microcontroller or other digital devices when the supply voltage falls below a certain threshold.

Characteristics

• Voltage monitoring range: 2.93V to 5.5V
• Low power consumption
• Precision voltage reference
• Adjustable reset threshold
• Power-on reset delay time: 140ms (typical)
• Active-low reset output
• Small package size

Package

ADM809-5LART-REEL is available in a small SOT-23 package, which is suitable for space-constrained applications.

Essence

The essence of ADM809-5LART-REEL lies in its ability to provide reliable voltage monitoring and reset functionality, ensuring stable operation of digital systems.

Packaging/Quantity

This product is typically supplied in reels containing a specified quantity of units, such as 3000 pieces per reel.

Specifications

• Supply Voltage Range: 1.1V to 6.0V
• Reset Threshold Accuracy: ±1.5%
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)
• Reset Timeout Period: 200ms (minimum)

Detailed Pin Configuration

ADM809-5LART-REEL has three pins:

1. VCC: Connect this pin to the positive supply voltage.
2. GND: Connect this pin to the ground.
3. RESET: This pin outputs an active-low reset signal to the microcontroller or digital device.

Functional Features

• Monitors the supply voltage continuously.
• Generates a reset signal when the voltage falls below the set threshold.
• Provides a stable reset output during power-up and power-down sequences.
• Adjustable reset threshold allows customization for different applications.
• Low quiescent current ensures minimal power consumption.

Advantages

• Wide supply voltage range enables compatibility with various systems.
• Precision voltage reference ensures accurate monitoring.
• Small package size saves board space.
• Adjustable reset threshold provides flexibility.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited reset timeout period may not be suitable for certain applications requiring longer delays.
• Lack of additional features, such as watchdog timer or manual reset input, may limit its use in specific scenarios.

Working Principles

ADM809-5LART-REEL operates by comparing the supply voltage with the internally set threshold. When the voltage drops below this threshold, the reset output is activated, indicating a power failure or unstable voltage condition. The reset output remains active until the voltage rises above the threshold and stabilizes.

Detailed Application Field Plans

ADM809-5LART-REEL finds application in various electronic systems where reliable voltage monitoring and reset functionality are crucial. Some common application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial control systems
4. Power management circuits
5. Communication equipment
6. Automotive electronics
7. Medical devices

Detailed and Complete Alternative Models

1. ADM811: Similar voltage supervisor IC with adjustable reset threshold and push-pull reset output.
2. MAX809: Voltage monitor with fixed reset threshold and open-drain reset output.
3. TPS3808: Ultra-low-power voltage supervisor with programmable reset threshold and manual reset input.

These alternative models offer similar functionality to ADM809-5LART-REEL and can be considered based on specific requirements and design constraints.

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