ADM709RAR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Precision monitoring, low power consumption, small package size
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Monitors voltage levels and provides reset signals to microcontrollers or other digital systems
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VCC: Supply voltage input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Reset output
5. RESET#: Complementary reset output
6. CT: Capacitor connection for reset timeout period adjustment
7. GND: Ground reference
8. VCC: Supply voltage input

Functional Features

• Precision voltage monitoring to ensure reliable system operation
• Adjustable reset timeout period to accommodate different system requirements
• Manual reset input for immediate system reset
• Complementary reset output for enhanced reliability
• Low power consumption for energy-efficient applications
• Small package size for space-constrained designs

Advantages

• Accurate voltage monitoring prevents system malfunctions and data corruption
• Adjustable reset timeout period allows flexibility in system response time
• Manual reset input enables manual control over system reset
• Complementary reset output enhances fault detection capabilities
• Low power consumption extends battery life in portable devices
• Small package size saves board space in compact designs

Disadvantages

• Limited number of reset threshold voltage options
• Reset timeout period adjustment requires external capacitor connection
• Manual reset input may introduce human error in system operation

Working Principles

The ADM709RAR is a voltage supervisor IC that monitors the supply voltage and generates reset signals to ensure proper system operation. It compares the monitored voltage with a preset threshold voltage and asserts the reset output when the voltage falls below the threshold. The reset signal remains active until the voltage rises above the threshold or a timeout period elapses.

Detailed Application Field Plans

The ADM709RAR is commonly used in various electronic systems where reliable voltage monitoring and system reset functionality are critical. Some application fields include:

1. Microcontroller-based Systems: Ensures stable operation of microcontrollers by providing reset signals during power-up, power-down, or voltage fluctuations.
2. Industrial Control Systems: Monitors power supply voltages in industrial control equipment to prevent malfunctions and ensure safe operation.
3. Automotive Electronics: Protects automotive electronic systems from voltage dips or spikes, preventing potential damage or data loss.
4. Medical Devices: Provides voltage supervision in medical devices to ensure patient safety and proper functioning.
5. Consumer Electronics: Used in portable devices, home appliances, and entertainment systems to maintain system integrity and prevent data corruption.

Detailed and Complete Alternative Models

1. ADM708RAR: Similar voltage supervisor IC with adjustable reset timeout period and different reset threshold voltage options.
2. MAX809R: Voltage supervisor IC with fixed reset timeout period and adjustable reset threshold voltage.
3. TPS3808G: Precision voltage supervisor IC with adjustable reset timeout period and wide supply voltage range.

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