ADM1818-5ART-REEL7

Product Overview

Category

ADM1818-5ART-REEL7 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
• Wide operating voltage range
• Small package size
• High accuracy

Package

ADM1818-5ART-REEL7 is available in a small surface mount package, typically a 5-pin SOT-23 package.

Essence

The essence of ADM1818-5ART-REEL7 lies in its ability to monitor voltage levels and provide a reset signal when necessary, ensuring proper operation of electronic devices.

Packaging/Quantity

ADM1818-5ART-REEL7 is typically packaged on reels, with each reel containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage: 2.93V
• Reset Timeout Period: 140ms
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

ADM1818-5ART-REEL7 has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Reset output
5. N/C: No connection (unused pin)

Functional Features

Voltage Monitoring

ADM1818-5ART-REEL7 continuously monitors the supply voltage and compares it to the preset threshold voltage. If the supply voltage drops below the threshold, the reset output is activated.

Reset Function

When the supply voltage falls below the threshold, the reset output is asserted, indicating that a reset condition is present. This signal can be used to initiate system resets or perform other necessary actions.

Manual Reset

The manual reset input (MR) allows for an external reset signal to override the internal monitoring circuitry. When MR is pulled low, the reset output is activated regardless of the supply voltage level.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality
• Low power consumption, suitable for battery-powered devices
• Wide operating voltage range accommodates various applications
• Small package size enables space-saving designs
• High accuracy ensures precise voltage monitoring

Disadvantages

• Limited number of pins may restrict additional functionalities
• Not suitable for applications requiring complex reset timing sequences

Working Principles

ADM1818-5ART-REEL7 utilizes a voltage comparator to continuously monitor the supply voltage. The comparator compares the voltage at the VDD pin with the preset threshold voltage. If the voltage drops below the threshold, the comparator triggers the reset output, indicating a reset condition.

Detailed Application Field Plans

ADM1818-5ART-REEL7 finds applications in various electronic devices where voltage monitoring and reset functionality are crucial. Some potential application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper operation by monitoring supply voltage and initiating resets when necessary.
2. Embedded Systems: Preventing data corruption and ensuring system stability during power fluctuations.
3. Industrial Control Systems: Monitoring voltage levels in critical control circuits to prevent malfunctions and ensure safety.
4. Automotive Electronics: Providing reliable reset functionality to ensure proper operation of vehicle systems.
5. Consumer Electronics: Protecting sensitive components from voltage fluctuations and ensuring uninterrupted operation.

Detailed and Complete Alternative Models

1. ADM1815-5ARTZ-REEL7: Similar voltage monitoring and reset IC with a different threshold voltage.
2. ADM1819-5ARTZ-REEL7: Voltage monitoring and reset IC with adjustable threshold voltage.
3. MAX811T: Alternative IC from Maxim Integrated with similar functionality.

These alternative models offer similar features and can be considered as substitutes for ADM1818-5ART-REEL7, depending on specific application requirements.

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