ADM809-5SAKS-REEL

Product Overview

Category

ADM809-5SAKS-REEL 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: ADM809-5SAKS-REEL monitors the supply voltage and provides a reset signal when it falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts in a known state after power-up or brownout conditions.
• Low power consumption: The device operates with low quiescent current, making it suitable for battery-powered applications.
• Small package size: ADM809-5SAKS-REEL comes in a compact SOT-23 package, allowing for space-efficient designs.
• Wide operating voltage range: It can operate within a wide voltage range, typically from 1.1V to 5.5V.

Package and Quantity

ADM809-5SAKS-REEL is available in a tape and reel packaging format. Each reel contains a specified quantity of ICs, typically 3000 units.

Specifications

• Supply Voltage Range: 1.1V to 5.5V
• Reset Threshold Voltage: 4.63V
• Reset Timeout Period: 140ms
• Quiescent Current: 7µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

ADM809-5SAKS-REEL has three pins:

1. VCC: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin for the reset signal.

Functional Features

• Voltage Monitoring: ADM809-5SAKS-REEL continuously monitors the supply voltage.
• Reset Generation: When the supply voltage drops below the reset threshold, the device generates a reset signal.
• Reset Timeout: The reset signal remains active for a fixed timeout period after the supply voltage rises above the threshold.

Advantages and Disadvantages

Advantages

• Reliable Power-On Reset: Ensures proper initialization of microcontrollers and digital circuits.
• Low Power Consumption: Suitable for battery-powered applications, extending battery life.
• Wide Operating Voltage Range: Compatible with various power supply voltages.
• Small Package Size: Allows for compact and space-efficient designs.

Disadvantages

• Lack of Adjustable Threshold: The reset threshold voltage is fixed and cannot be adjusted.

Working Principles

ADM809-5SAKS-REEL operates by comparing the supply voltage against a preset threshold. When the voltage falls below the threshold, the reset output is activated. It remains active for a fixed timeout period after the voltage rises above the threshold. This ensures that the system has sufficient time to stabilize before resuming normal operation.

Application Field Plans

ADM809-5SAKS-REEL finds applications in various electronic devices where reliable voltage monitoring and reset functionality are required. Some potential application fields include:

1. Microcontroller Systems: Ensures proper initialization and reliable operation of microcontroller-based systems.
2. Embedded Systems: Provides a stable start-up state for embedded systems upon power-up or brownout conditions.
3. Battery-Powered Devices: Maximizes battery life by efficiently managing power-on reset functions.
4. Industrial Control Systems: Ensures reliable operation of control circuitry in industrial automation applications.

Alternative Models

Here are some alternative models that offer similar functionality:

1. MAX809: Manufactured by Maxim Integrated, this IC provides voltage monitoring and reset functions with adjustable threshold options.
2. MCP100: Produced by Microchip Technology, it offers voltage monitoring and reset capabilities with additional features like manual reset input.
3. TPS3808: Texas Instruments manufactures this IC, which provides voltage monitoring and reset functions with adjustable threshold and timeout options.

These alternative models can be considered based on specific application requirements and desired features.

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