APX809S-26SAG7

Product Overview

Category

APX809S-26SAG7 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-26SAG7 comes in a small SOT-23-3 package.

Essence

The essence of APX809S-26SAG7 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 each reel containing 3000 units.

Specifications

• Operating Voltage Range: 2.6V to 5.5V
• Threshold Voltage: 2.6V
• Accuracy: ±1.5%
• Quiescent Current: 1.0μA (typical)
• Output Type: Active Low
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The APX809S-26SAG7 has three pins:

1. VDD: This pin is connected to the positive supply voltage.
2. GND: This pin is connected to the ground or negative supply voltage.
3. RESET: This pin provides the output signal indicating the voltage level.

Functional Features

• Voltage Monitoring: The APX809S-26SAG7 continuously monitors the input voltage and generates an active low reset signal when the voltage drops below the threshold.
• Reset Delay: It includes a built-in delay circuit to ensure that the reset signal remains active for a certain period after the voltage returns above the threshold.
• Power-On Reset: The device also provides a power-on reset function, ensuring proper initialization of the system during power-up.

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.
• High accuracy ensures reliable voltage monitoring.

Disadvantages

• The active low output may require additional circuitry for compatibility with certain systems.
• Limited pin configuration options may restrict its use in complex circuit designs.

Working Principles

The APX809S-26SAG7 operates based on a voltage comparator circuit. It compares the input voltage with the threshold voltage set internally. When the input voltage drops below the threshold, the reset signal is activated. The built-in delay circuit ensures that the reset signal remains active for a specific time after the voltage rises above the threshold.

Detailed Application Field Plans

APX809S-26SAG7 finds applications in various fields, including:

1. Power Supply Monitoring: It can be used to monitor the voltage level of power supplies and generate reset signals in case of voltage fluctuations or failures.
2. Battery-Powered Devices: The voltage detector ensures efficient power management in battery-powered devices by providing early warning of low battery levels.
3. Industrial Control Systems: It plays a crucial role in monitoring voltage levels in control systems, preventing malfunctions due to unstable power supply conditions.

Detailed and Complete Alternative Models

1. APX809-29SAG7: Similar to APX809S-26SAG7 but with a higher threshold voltage of 2.9V.
2. APX809T-31SAG7: This model offers a lower threshold voltage of 3.1V, making it suitable for specific applications requiring a different voltage level detection.

(Note: The alternative models mentioned are for illustrative purposes only and not an exhaustive list.)

In conclusion, the APX809S-26SAG7 is a voltage detector with low power consumption, high accuracy, and a wide operating voltage range. Its small package size and reliable functionality make it suitable for various applications in different fields. However, its active low output and limited pin configuration options may require additional considerations during circuit design.