ADM812LART-REEL7

Product Overview

Category

ADM812LART-REEL7 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used as a voltage supervisor or reset IC.

Characteristics

• Low power consumption
• Wide operating voltage range
• Adjustable reset threshold voltage
• Manual reset input
• Active-low push-pull output
• Small package size

Package

ADM812LART-REEL7 is available in a small SOT-23 package.

Essence

The essence of ADM812LART-REEL7 lies in its ability to monitor the supply voltage and generate a reset signal when the voltage falls below a certain threshold.

Packaging/Quantity

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

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 4.38V, and adjustable
• Manual Reset Input: Active-low
• Output Type: Push-pull
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

ADM812LART-REEL7 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 a low signal when the supply voltage falls below the reset threshold.

Functional Features

• Monitors the supply voltage continuously.
• Generates a reset signal when the voltage drops below the set threshold.
• Provides manual reset capability through an external push-button.
• Offers adjustable reset threshold voltage for flexibility.
• Outputs an active-low push-pull signal for driving other devices.

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered applications.
• Wide operating voltage range allows compatibility with various systems.
• Adjustable reset threshold voltage accommodates different voltage levels.
• Small package size saves board space.

Disadvantages

• Lack of built-in hysteresis may cause false triggering in noisy environments.
• Limited number of available reset threshold voltage options.

Working Principles

ADM812LART-REEL7 operates by comparing the supply voltage with the set threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a power failure or an unstable voltage condition. The manual reset input can also trigger the reset signal when activated.

Detailed Application Field Plans

ADM812LART-REEL7 finds applications in various fields, including:

1. Microcontrollers: Ensures reliable system startup and prevents erratic behavior during power fluctuations.
2. Industrial Control Systems: Monitors power supply integrity to prevent damage to sensitive equipment.
3. Automotive Electronics: Provides reset functionality to ensure proper operation of critical systems.
4. Consumer Electronics: Protects devices from voltage dips and ensures safe shutdown during power loss.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to ADM812LART-REEL7 include:

1. MAX809: Low-power microprocessor reset circuits.
2. LTC2937: Adjustable overvoltage and undervoltage supervisor.
3. TPS3839: Voltage supervisor with manual reset input.

These alternatives can be considered based on specific requirements and application needs.

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