APX809-29SRG-7

Product Overview

Category

APX809-29SRG-7 belongs to the category of electronic components.

Use

This product is commonly used in various electronic devices and circuits for voltage monitoring and reset functions.

Characteristics

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

Package

APX809-29SRG-7 is available in a small SOT-23-3 package.

Essence

The essence of APX809-29SRG-7 lies in its ability to monitor voltage levels and provide a reset signal when necessary, ensuring proper functioning of electronic systems.

Packaging/Quantity

This product is typically sold in reels containing a specified quantity of units, such as 3000 pieces per reel.

Specifications

• Operating Voltage Range: 2.5V to 5.5V
• Reset Threshold Voltage: 2.93V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

APX809-29SRG-7 has three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin that provides a reset signal.

Functional Features

• Voltage Monitoring: APX809-29SRG-7 continuously monitors the voltage level at the VDD pin.
• Reset Signal Generation: When the voltage drops below the reset threshold, the RESET pin becomes active, generating a reset signal.
• Reset Timeout: The reset signal remains active for a specific timeout period, allowing the system to stabilize before resuming normal operation.
• Manual Reset Input: An external push-button can be connected to the RESET pin for manual reset functionality.

Advantages and Disadvantages

Advantages

• Low power consumption ensures minimal impact on overall system energy efficiency.
• Wide operating voltage range makes it compatible with a variety of electronic devices.
• High accuracy in voltage monitoring provides reliable reset functionality.
• Small package size allows for space-saving integration into compact designs.

Disadvantages

• The reset timeout period may not be adjustable, limiting flexibility in certain applications.
• Lack of additional features, such as hysteresis control, may restrict its suitability for specific use cases.

Working Principles

APX809-29SRG-7 operates based on the principle of comparing the input voltage with a preset threshold. When the voltage drops below the threshold, the internal circuitry triggers the RESET pin, generating a reset signal. This signal remains active for a specified timeout period, allowing the system to reset and stabilize before resuming normal operation.

Detailed Application Field Plans

APX809-29SRG-7 finds application in various electronic systems where voltage monitoring and reset functionality are crucial. Some common application fields include:

1. Microcontrollers: Ensuring proper initialization and reliable operation of microcontroller-based systems.
2. Power Supply Units: Protecting sensitive components from voltage fluctuations and ensuring safe startup.
3. Industrial Control Systems: Providing fault detection and recovery capabilities in industrial automation setups.
4. Automotive Electronics: Monitoring critical voltage levels in automotive systems to prevent malfunctions.

Detailed and Complete Alternative Models

1. APX809-29SAG-7: Similar to APX809-29SRG-7 but available in an SOT-23-5 package, providing additional features like adjustable reset timeout.
2. APX809-29SEG-7: Another variant with a different reset threshold voltage, suitable for specific voltage level requirements.
3. APX809-29SDG-7: Offers similar functionality but comes in a DFN package, allowing for different mounting options.

These alternative models provide flexibility and cater to specific application needs while maintaining the core functionality of voltage monitoring and reset generation.

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