ADM1818-20AKS-RL7

Product Overview

Category

ADM1818-20AKS-RL7 belongs to the category of voltage supervisors or reset ICs.

Use

This product is primarily used for monitoring the power supply voltage in electronic systems and ensuring proper system operation.

Characteristics

• Voltage threshold: 2.0V
• Accuracy: ±1%
• Supply voltage range: 1.6V to 5.5V
• Low quiescent current: 3µA (typical)
• Power-on reset delay time: 200ms (typical)
• Active-low push-pull output
• Operating temperature range: -40°C to +85°C

Package

ADM1818-20AKS-RL7 is available in a SOT-23-3 package.

Essence

The essence of this product lies in its ability to monitor the power supply voltage and generate a reset signal when the voltage falls below a certain threshold, ensuring reliable system operation.

Packaging/Quantity

ADM1818-20AKS-RL7 is typically packaged in reels containing 3000 units.

Specifications

• Voltage threshold: 2.0V
• Accuracy: ±1%
• Supply voltage range: 1.6V to 5.5V
• Quiescent current: 3µA (typical)
• Reset timeout period: 200ms (typical)
• Output type: Active-low push-pull
• Operating temperature range: -40°C to +85°C
• Package: SOT-23-3

Detailed Pin Configuration

ADM1818-20AKS-RL7 has three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Active-low push-pull reset output pin.

Functional Features

• Monitors power supply voltage and generates a reset signal when the voltage falls below the threshold.
• Provides accurate voltage monitoring with ±1% accuracy.
• Low quiescent current ensures minimal power consumption.
• Active-low push-pull output allows easy interfacing with other components.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring helps prevent system malfunctions.
• Low quiescent current minimizes power consumption.
• Small package size enables space-efficient designs.
• Wide operating temperature range allows for use in various environments.

Disadvantages

• The fixed voltage threshold may not be suitable for all applications.
• Lack of adjustable timeout period limits flexibility in certain scenarios.

Working Principles

ADM1818-20AKS-RL7 operates by continuously monitoring the power supply voltage. When the voltage drops below the preset threshold of 2.0V, the reset output is activated, signaling a system reset. This ensures that the system remains in a known state during low-voltage conditions.

Detailed Application Field Plans

ADM1818-20AKS-RL7 finds applications in various electronic systems where reliable voltage monitoring and system reset functionality are crucial. Some potential application fields include:

1. Microcontrollers and microprocessors: Ensuring proper operation and preventing data corruption during power supply fluctuations.
2. Industrial control systems: Maintaining system integrity and preventing damage to equipment during voltage variations.
3. Automotive electronics: Monitoring battery voltage and triggering resets to avoid system failures.
4. Medical devices: Ensuring safe and reliable operation by monitoring power supply voltage levels.
5. IoT devices: Preventing data loss and maintaining system stability during power supply disturbances.

Detailed and Complete Alternative Models

1. ADM1815-5ARTZ-RL7: Voltage supervisor with a 5.0V threshold and adjustable reset timeout period.
2. ADM6316CY29ARJZ-R7: Voltage supervisor with a 2.9V threshold and push-pull output in a SOT-23 package.
3. MAX809SEUR+T: Voltage supervisor with a 2.93V threshold, adjustable reset timeout, and open-drain output.

These alternative models offer similar functionality to ADM1818-20AKS-RL7 but may have different voltage thresholds, package options, or additional features.

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