ADM693ANZ

Product Overview

Category

ADM693ANZ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and power supply supervision.

Characteristics

• Voltage monitoring and power supply supervision
• Low power consumption
• Wide operating voltage range
• High accuracy
• Small package size

Package

ADM693ANZ is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of ADM693ANZ lies in its ability to monitor voltage levels and supervise power supply, ensuring stable operation of electronic devices.

Packaging/Quantity

ADM693ANZ is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Reset
• Reset Threshold Voltage: Adjustable
• Reset Timeout Period: Fixed

Detailed Pin Configuration

ADM693ANZ consists of eight pins:

1. VCC: Power supply input
2. GND: Ground reference
3. MR: Master reset input
4. RESET: Active-low reset output
5. TO: Timeout period selection
6. CT: Capacitor connection for timeout period adjustment
7. TH: Threshold voltage adjustment
8. VOUT: Voltage output for threshold comparison

Functional Features

• Voltage monitoring: ADM693ANZ continuously monitors the input voltage and compares it with the user-adjustable threshold voltage.
• Power supply supervision: It generates an active-low reset signal when the monitored voltage falls below the threshold, indicating a power supply failure.
• Timeout period: The timeout period can be set using an external capacitor, allowing flexibility in defining the duration for which the monitored voltage must remain below the threshold before generating a reset signal.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various electronic devices.
• High accuracy ensures reliable voltage monitoring.
• Low power consumption minimizes energy usage.
• Small package size facilitates integration into compact designs.

Disadvantages

• Lack of adjustable timeout period limits customization options.
• Limited availability of alternative models may restrict flexibility in certain applications.

Working Principles

ADM693ANZ operates based on a voltage comparator circuit. It continuously compares the input voltage with the user-adjustable threshold voltage. If the input voltage falls below the threshold, indicating a power supply failure, the active-low reset output is triggered. The timeout period can be set to define the duration for which the monitored voltage must remain below the threshold before generating a reset signal.

Detailed Application Field Plans

ADM693ANZ finds application in various electronic devices that require voltage monitoring and power supply supervision. Some specific application fields include:

1. Embedded systems: ADM693ANZ ensures stable operation by monitoring the power supply voltage and generating a reset signal in case of failure.
2. Industrial automation: It provides reliable power supply supervision in control systems, preventing malfunctions due to voltage fluctuations.
3. Medical devices: ADM693ANZ helps maintain the integrity of critical medical equipment by monitoring the power supply and initiating appropriate actions in case of voltage deviations.
4. Automotive electronics: It ensures the proper functioning of automotive systems by monitoring the battery voltage and triggering resets when necessary.

Detailed and Complete Alternative Models

While ADM693ANZ is a widely used voltage monitoring IC, there are alternative models available in the market that offer similar functionality. Some notable alternatives include:

1. MAX823: This IC offers adjustable reset thresholds and timeout periods, providing greater customization options.
2. LTC2937: It features a wide operating voltage range and additional fault detection capabilities, making it suitable for demanding applications.
3. TPS3808: This IC offers adjustable reset thresholds and timeout periods, along with a power-on reset delay feature.

These alternative models provide users with options that cater to specific requirements and offer enhanced features compared to ADM693ANZ.

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