ADM1818-20ART-RL7

Product Overview

Category

ADM1818-20ART-RL7 belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage range: 1.8V
• Package type: SOT-23
• Low power consumption
• Wide operating temperature range
• High accuracy

Package and Quantity

ADM1818-20ART-RL7 is available in a SOT-23 package. It is typically sold in reels containing a specific quantity, which may vary depending on the supplier.

Specifications

The specifications of ADM1818-20ART-RL7 are as follows:

• Supply voltage range: 1.6V to 5.5V
• Threshold voltage: 1.8V
• Accuracy: ±1.5%
• Quiescent current: 10µA (typical)
• Operating temperature range: -40°C to +85°C

Pin Configuration

ADM1818-20ART-RL7 has the following pin configuration:

1. GND (Ground)
2. RESET (Reset output)
3. VCC (Supply voltage)

Functional Features

ADM1818-20ART-RL7 offers the following functional features:

• Voltage monitoring: It continuously monitors the supply voltage and provides a reset signal when it falls below the threshold voltage.
• Reset output: The device generates a reset signal that can be used to reset the microcontroller or other digital circuits.
• Power-on reset delay: It includes a built-in delay circuit to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages

• Low power consumption: The device operates with low quiescent current, making it suitable for battery-powered applications.
• Wide operating temperature range: It can function reliably in extreme temperature conditions.
• High accuracy: The voltage threshold has a high level of accuracy, ensuring precise monitoring.

Disadvantages

• Limited voltage range: ADM1818-20ART-RL7 is designed for a specific voltage range and may not be suitable for applications requiring different thresholds.
• Single-channel: It provides monitoring and reset functionality for a single voltage channel.

Working Principles

ADM1818-20ART-RL7 works based on the principle of comparing the supply voltage with a preset threshold. When the supply voltage drops below the threshold voltage, the device triggers the reset output, indicating a power failure or an unstable voltage condition. This reset signal can be used to initiate system recovery or perform other necessary actions.

Application Field Plans

ADM1818-20ART-RL7 finds applications in various fields, including:

1. Battery-powered devices: It ensures proper functioning by monitoring the battery voltage and initiating a reset if it falls below the threshold.
2. Industrial control systems: The device helps maintain stable operation by monitoring the power supply voltage and providing a reset signal in case of voltage fluctuations.
3. Automotive electronics: It plays a crucial role in monitoring the vehicle's electrical system and triggering a reset when necessary.

Alternative Models

Some alternative models that offer similar functionality to ADM1818-20ART-RL7 include:

1. MAX809: Manufactured by Maxim Integrated, this voltage supervisor offers adjustable threshold voltage and comes in various package options.
2. TPS3808: Produced by Texas Instruments, it features a wide supply voltage range and adjustable delay time.
3. MCP1316: This Microchip Technology voltage supervisor provides multiple reset outputs and adjustable threshold voltage.

These alternative models can be considered based on specific requirements and compatibility with the application.

In conclusion, ADM1818-20ART-RL7 is a voltage supervisor that monitors and controls voltage levels in electronic circuits. With its low power consumption, wide operating temperature range, and high accuracy, it finds applications in various fields such as battery-powered devices, industrial control systems, and automotive electronics. While it has limitations in terms of voltage range and single-channel functionality, alternative models like MAX809, TPS3808, and MCP1316 offer similar features and can be considered as alternatives.