ADM809SART-REEL7

Product Overview

Category

The ADM809SART-REEL7 belongs to the category of voltage supervisors.

Use

It is primarily used to monitor the power supply voltage in electronic systems and ensure proper system operation.

Characteristics

• Voltage monitoring: The ADM809SART-REEL7 can monitor the power supply voltage and provide a reset signal when it falls below a certain threshold.
• Low power consumption: It operates with low quiescent current, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide range of input voltages, typically from 1.1V to 5V.
• Adjustable reset threshold: The reset threshold voltage can be adjusted using external resistors.
• Precision voltage reference: It incorporates a precision voltage reference to accurately monitor the power supply voltage.

Package

The ADM809SART-REEL7 is available in a small SOT-23 package, which is compact and suitable for space-constrained applications.

Essence

The essence of the ADM809SART-REEL7 lies in its ability to monitor the power supply voltage and provide a reset signal to ensure reliable system operation.

Packaging/Quantity

The ADM809SART-REEL7 is typically packaged in reels containing a specified quantity of devices. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 1.1V to 5V
• Reset Threshold Voltage: Adjustable (typically 2.93V)
• Quiescent Current: 6µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ADM809SART-REEL7 has three pins:

1. VCC: This pin is connected to the power supply voltage.
2. GND: This pin is connected to the ground.
3. RESET: This pin provides the reset signal when the power supply voltage falls below the threshold.

Functional Features

• Voltage Monitoring: The ADM809SART-REEL7 continuously monitors the power supply voltage.
• Reset Generation: When the power supply voltage drops below the preset threshold, the ADM809SART-REEL7 generates a reset signal.
• Adjustable Threshold: The reset threshold voltage can be adjusted using external resistors.
• Power-On Reset: It provides a reset signal during power-up to ensure proper system initialization.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable system operation.
• Low power consumption makes it suitable for battery-powered applications.
• Adjustable reset threshold allows flexibility in different system requirements.
• Small package size enables space-constrained designs.

Disadvantages

• Limited operating temperature range (-40°C to +85°C).
• Requires external resistors for threshold adjustment.

Working Principles

The ADM809SART-REEL7 works by comparing the power supply voltage with a preset threshold voltage. When the power supply voltage falls below the threshold, the device generates a reset signal. This reset signal can be used to initiate system recovery or perform other necessary actions.

Detailed Application Field Plans

The ADM809SART-REEL7 finds applications in various electronic systems where voltage monitoring and reliable system operation are critical. Some potential application fields include:

1. Microcontrollers: Ensuring proper operation of microcontrollers by monitoring the power supply voltage and initiating system resets if necessary.
2. Industrial Control Systems: Providing voltage supervision in industrial control systems to prevent malfunctions due to power supply fluctuations.
3. Automotive Electronics: Monitoring the power supply voltage in automotive electronics to ensure stable operation and protect sensitive components.

Detailed and Complete Alternative Models

1. ADM811: Similar to ADM809SART-REEL7, but with a fixed reset threshold voltage.
2. MAX809: Voltage supervisors with adjustable reset thresholds and various package options.
3. TPS3808: Precision voltage supervisors with adjustable reset thresholds and wide operating temperature range.

These alternative models offer similar functionality to the ADM809SART-REEL7 and can be considered based on specific application requirements.

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