APX809S-29SR-7

Product Overview

Category

APX809S-29SR-7 belongs to the category of voltage detectors.

Use

It is primarily used for monitoring and detecting voltage levels in electronic circuits.

Characteristics

• Low power consumption
• High accuracy
• Wide operating voltage range
• Small package size
• RoHS compliant

Package

The APX809S-29SR-7 comes in a small SOT-23-3 package.

Essence

The essence of APX809S-29SR-7 lies in its ability to accurately monitor voltage levels and provide a reliable output signal.

Packaging/Quantity

The product is typically packaged in reels, with 3000 units per reel.

Specifications

• Operating Voltage Range: 2.9V to 5.5V
• Threshold Voltage: 2.9V
• Accuracy: ±1.5%
• Quiescent Current: 1μA (typical)
• Output Type: Active-Low
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The APX809S-29SR-7 has three pins:

1. VDD: This pin is connected to the positive supply voltage.
2. GND: This pin is connected to the ground.
3. RESET: This pin provides the active-low reset output.

Functional Features

• Voltage Monitoring: The APX809S-29SR-7 continuously monitors the input voltage and generates a reset signal when it falls below the threshold voltage.
• Active-Low Reset Output: The reset output goes low when the input voltage drops below the threshold, indicating a power failure or abnormal voltage level.
• Precision: With an accuracy of ±1.5%, the APX809S-29SR-7 ensures reliable voltage monitoring.

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered applications.
• Wide operating voltage range allows for versatile use in various circuits.
• Small package size enables space-saving designs.
• RoHS compliance ensures environmental friendliness.

Disadvantages

• The active-low reset output may not be compatible with all circuit configurations.
• Limited threshold voltage options may restrict its use in certain applications.

Working Principles

The APX809S-29SR-7 operates by comparing the input voltage with the threshold voltage. When the input voltage drops below the threshold, the reset output is activated, indicating a power failure or abnormal voltage level.

Detailed Application Field Plans

The APX809S-29SR-7 finds applications in various fields, including:

1. Power Supply Monitoring: It can be used to monitor the voltage levels in power supply circuits and trigger appropriate actions in case of voltage fluctuations.
2. Battery-Powered Devices: The voltage detector ensures efficient power management in devices powered by batteries, preventing over-discharge and extending battery life.
3. Industrial Control Systems: It plays a crucial role in monitoring voltage levels in control systems, ensuring stable operation and preventing damage due to voltage variations.

Detailed and Complete Alternative Models

1. APX809-29SAG-7: Similar to APX809S-29SR-7 but with an active-high reset output.
2. APX809T-29SAG-7: A temperature-compensated version of APX809-29SAG-7, suitable for applications requiring precise voltage monitoring across varying temperatures.
3. APX809R-29SAG-7: This model offers a higher accuracy of ±0.5% for more demanding voltage monitoring applications.

(Note: The above alternative models are just a few examples; there are several other alternatives available in the market.)

In conclusion, the APX809S-29SR-7 is a voltage detector with low power consumption, high accuracy, and a wide operating voltage range. Its small package size and RoHS compliance make it suitable for various applications. However, its active-low reset output may not be compatible with all circuit configurations. It finds application in power supply monitoring, battery-powered devices, and industrial control systems. Alternative models with different features and specifications are also available in the market.