ADM705AN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Precision Monitoring, Reset Output
• Package: PDIP (Plastic Dual In-line Package)
• Essence: Monitors the power supply voltage and generates a reset signal when the voltage falls below a specified threshold.
• Packaging/Quantity: Tube packaging, 25 pieces per tube.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 30µA (typical)

Detailed Pin Configuration

The ADM705AN IC has a total of 8 pins:

1. VCC: Power supply input pin.
2. GND: Ground reference pin.
3. MR: Manual reset input pin.
4. RESET: Active-low reset output pin.
5. CT: Capacitor connection pin for reset timeout period adjustment.
6. GND: Ground reference pin.
7. RESET: Active-low reset output pin.
8. VCC: Power supply input pin.

Functional Features

• Monitors the power supply voltage continuously.
• Generates a reset signal when the voltage falls below the specified threshold.
• Provides a manual reset option through the MR pin.
• Offers adjustable reset timeout periods using an external capacitor.
• Low quiescent current consumption for power efficiency.

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Precise monitoring ensures reliable operation.
• Adjustable reset threshold and timeout options provide flexibility.
• Low-power design minimizes energy consumption.
• Easy integration into existing circuits due to standard package.

Disadvantages

• Limited reset threshold voltage options may not suit all applications.
• Fixed pin configuration limits customization possibilities.
• Manual reset functionality may not be required in all systems.

Working Principles

The ADM705AN monitors the power supply voltage by comparing it with a reference voltage internally. When the supply voltage falls below the specified threshold, the IC generates a reset signal on the RESET pin. This signal can be used to reset microcontrollers, digital logic circuits, or other system components.

The reset timeout period determines how long the reset signal remains active after the voltage rises above the threshold again. The timeout period can be adjusted by connecting an external capacitor to the CT pin.

Detailed Application Field Plans

The ADM705AN is commonly used in various electronic systems where reliable power supply monitoring and reset functionality are crucial. Some application fields include:

1. Microcontroller-based Systems: Ensures proper initialization and reliable operation of microcontrollers by providing a reset signal when the power supply voltage drops below the threshold.
2. Industrial Control Systems: Monitors power supply integrity in industrial control systems to prevent malfunctions or data corruption during voltage fluctuations.
3. Embedded Systems: Protects embedded systems from unpredictable power supply variations, ensuring stable and safe operation.
4. Automotive Electronics: Provides voltage supervision in automotive electronics, preventing potential system failures due to voltage drops or transients.

Detailed and Complete Alternative Models

1. ADM708AR: Similar voltage supervisor IC with adjustable reset threshold and timeout options.
2. MAX705CSA: Voltage supervisor IC with fixed reset threshold and timeout periods.
3. TPS3808G01DBVR: Precision voltage supervisor IC with adjustable reset threshold and fixed timeout period.
4. MCP101T-450I/TT: Low-power voltage supervisor IC with fixed reset threshold and timeout periods.

These alternative models offer similar functionalities and can be considered based on specific application requirements.

Word count: 455 words