ADM1818-R22ART-RL

Product Overview

Category

ADM1818-R22ART-RL belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring and reset functionality
• Low power consumption
• Small form factor
• Wide operating temperature range
• High accuracy

Package

ADM1818-R22ART-RL is available in a small outline package (SOT-23) which allows for easy integration into various electronic designs.

Essence

The essence of ADM1818-R22ART-RL lies in its ability to monitor voltage levels and provide a reset signal when necessary, ensuring proper operation of electronic systems.

Packaging/Quantity

ADM1818-R22ART-RL is typically packaged in reels containing a specified quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage: 2.2V
• Reset Timeout Period: Adjustable
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

ADM1818-R22ART-RL features a standard SOT-23 package with three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin for the reset signal.

Functional Features

• Voltage Monitoring: ADM1818-R22ART-RL continuously monitors the supply voltage and compares it to the preset threshold voltage.
• Reset Signal Generation: When the supply voltage drops below the threshold voltage, the device generates a reset signal to initiate a system reset.
• Adjustable Timeout Period: The reset signal remains active for a user-adjustable period after the voltage rises above the threshold, allowing for proper system stabilization.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality.
• Low power consumption, suitable for battery-powered devices.
• Compact size enables easy integration into various electronic designs.
• Wide operating temperature range ensures performance in extreme environments.
• High accuracy provides precise voltage monitoring.

Disadvantages

• Limited to voltage monitoring and reset functions, may not be suitable for applications requiring additional features.
• Requires external components for proper operation, increasing overall system complexity.

Working Principles

ADM1818-R22ART-RL operates based on a voltage comparator circuit. It continuously compares the supply voltage with the preset threshold voltage. When the supply voltage drops below the threshold, the device triggers a reset signal. The reset signal remains active for a user-defined timeout period after the voltage rises above the threshold, ensuring proper system stabilization.

Detailed Application Field Plans

ADM1818-R22ART-RL finds applications in various electronic systems where voltage monitoring and reset functionality are critical. Some common application fields include:

1. Microcontrollers and Microprocessors: Ensures reliable system reset during power fluctuations or brownout conditions.
2. Industrial Control Systems: Provides voltage monitoring and reset capabilities for stable operation of control units.
3. Automotive Electronics: Monitors supply voltage to prevent malfunctions and ensure safe operation of vehicle systems.
4. Consumer Electronics: Enables proper system reset and protection against voltage irregularities in devices such as smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

1. ADM1815-R23ART-RL: Similar to ADM1818-R22ART-RL but with a different reset threshold voltage (2.3V).
2. ADM1819-R25ART-RL: Offers higher reset threshold voltage (2.5V) for applications requiring a different voltage monitoring level.
3. ADM1820-R18ART-RL: Provides a lower reset threshold voltage (1.8V) for applications with specific voltage requirements.

These alternative models offer similar functionality to ADM1818-R22ART-RL but cater to different voltage monitoring needs.

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