APX803L05-43SA-7

Product Overview

Category

The APX803L05-43SA-7 belongs to the category of voltage supervisors.

Use

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

Characteristics

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

Package

The APX803L05-43SA-7 is available in a small SOT-23-3 package.

Essence

This product serves as a reliable voltage supervisor, ensuring stable operation of electronic devices by monitoring the supply voltage.

Packaging/Quantity

The APX803L05-43SA-7 is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Threshold Voltage: 4.3V ± 2%
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 0.1μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The APX803L05-43SA-7 has three pins:

1. VDD: Connects to the positive supply voltage.
2. GND: Connects to the ground reference.
3. RESET: Output pin that indicates the status of the monitored voltage.

Functional Features

• Under-voltage detection: Monitors the supply voltage and generates a reset signal when it falls below the threshold voltage.
• Reset output: The RESET pin provides an active-low reset signal to the system until the supply voltage rises above the threshold level.
• Power-on reset delay: Ensures that the reset signal remains active for a specific period after power is applied.

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered applications.
• Wide operating voltage range allows compatibility with various systems.
• Small package size enables space-saving designs.

Disadvantages

• Fixed threshold voltage may not be suitable for all applications requiring different voltage levels.
• Lack of adjustable timeout period limits flexibility in certain scenarios.

Working Principles

The APX803L05-43SA-7 operates by comparing the supply voltage with the preset threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a power failure or an unstable voltage condition. The reset signal remains active until the supply voltage rises above the threshold level, ensuring proper system operation.

Detailed Application Field Plans

The APX803L05-43SA-7 finds applications in various fields, including:

1. Microcontrollers: Ensures reliable operation by monitoring the supply voltage and initiating a reset if necessary.
2. Power management systems: Protects sensitive components from voltage fluctuations and prevents damage.
3. Industrial control systems: Provides voltage supervision to ensure stable operation of critical equipment.
4. Automotive electronics: Monitors the vehicle's electrical system to prevent malfunctions and protect sensitive components.

Detailed and Complete Alternative Models

1. APX803L03-43SA-7: Similar to APX803L05-43SA-7 but with a lower threshold voltage of 3.0V.
2. APX803L10-43SA-7: Similar to APX803L05-43SA-7 but with a higher threshold voltage of 10.0V.
3. APX803M05-43SA-7: A micro-power version with even lower quiescent current for ultra-low power applications.

(Note: This list is not exhaustive and other alternative models may exist.)

In conclusion, the APX803L05-43SA-7 is a voltage supervisor with a wide operating voltage range, low power consumption, and small package size. It finds applications in various fields, providing reliable voltage monitoring and reset functionality. While it has fixed characteristics and limitations, alternative models offer flexibility for different voltage requirements.