APX803L-45SA-7

Product Overview

Category

APX803L-45SA-7 belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the power supply voltage in electronic devices.

Characteristics

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

Package

The APX803L-45SA-7 comes in a small SOT-23-3 package.

Essence

The essence of this product lies in its ability to provide accurate voltage monitoring and reset functions in electronic systems.

Packaging/Quantity

The APX803L-45SA-7 is typically packaged in reels, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Threshold Voltage: 4.5V ± 1.5%
• Reset Timeout Period: 200ms (typical)
• Quiescent Current: 1.0µA (typical)

Detailed Pin Configuration

The APX803L-45SA-7 has three pins:

1. VDD: Connects to the positive supply voltage.
2. GND: Connects to the ground reference.
3. RESET: Output pin that provides a reset signal when the monitored voltage drops below the threshold.

Functional Features

• Voltage Monitoring: The APX803L-45SA-7 continuously monitors the supply voltage and generates a reset signal if it falls below the threshold voltage.
• Reset Signal: The device provides a reset signal to the microcontroller or other system components to ensure proper operation during power-up or voltage fluctuations.
• Low Power Consumption: With a quiescent current of only 1.0µA, the APX803L-45SA-7 minimizes power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring
• Low power consumption
• Wide operating voltage range
• Small package size

Disadvantages

• Limited reset timeout period (200ms)

Working Principles

The APX803L-45SA-7 operates by comparing the supply voltage with the threshold voltage. If the supply voltage drops below the threshold, the device generates a reset signal. This signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The APX803L-45SA-7 finds applications in various electronic systems, including:

1. Microcontrollers: Ensures reliable operation during power-up and voltage fluctuations.
2. Communication Devices: Monitors power supply voltage to prevent data corruption or loss.
3. Industrial Control Systems: Provides voltage supervision for critical components to avoid system failures.
4. Automotive Electronics: Ensures proper functioning of electronic systems in vehicles.

Detailed and Complete Alternative Models

1. APX803L-30SA-7: Similar to APX803L-45SA-7 but with a lower threshold voltage of 3.0V.
2. APX803L-50SA-7: Similar to APX803L-45SA-7 but with a higher threshold voltage of 5.0V.
3. APX803M-45SA-7: A micro-power version of APX803L-45SA-7 with even lower quiescent current.

(Note: The alternative models mentioned above are just a few examples and not an exhaustive list.)

In conclusion, the APX803L-45SA-7 is a voltage supervisor that provides accurate voltage monitoring and reset functions. With its low power consumption, wide operating voltage range, and small package size, it is suitable for various electronic applications. However, its limited reset timeout period may be a disadvantage in certain scenarios.