APX803L05-39SA-7

Product Overview

Category

APX803L05-39SA-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 APX803L05-39SA-7 comes in a small surface-mount SOT-23-3 package.

Essence

The essence of APX803L05-39SA-7 lies in its ability to provide accurate voltage monitoring and reset functions in various electronic applications.

Packaging/Quantity

The product is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Threshold Voltage: 3.9V ±2%
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The APX803L05-39SA-7 has three pins:

1. VDD: Connect this pin to the positive supply voltage.
2. GND: Connect this pin to the ground reference.
3. RESET: This open-drain output pin provides a reset signal when the monitored voltage drops below the threshold.

Functional Features

• Accurate voltage monitoring: The APX803L05-39SA-7 ensures precise monitoring of the supply voltage.
• Reset function: It generates a reset signal when the voltage falls below the specified threshold.
• Power-on reset delay: The device includes a power-on reset delay to prevent false resets during power-up.

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

• The reset timeout period may not be adjustable, limiting its flexibility in certain applications.
• Lack of additional features like adjustable threshold voltage or hysteresis.

Working Principles

The APX803L05-39SA-7 operates by comparing the supply voltage with a fixed threshold. When the voltage drops below the threshold, the reset output is activated. It remains active until the voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The APX803L05-39SA-7 finds applications in various fields, including:

1. Power management systems: It ensures proper voltage monitoring and system reset in power management circuits.
2. Microcontroller-based systems: The device provides reliable reset functionality to prevent erratic behavior during power fluctuations.
3. Battery-powered devices: Its low-power characteristics make it suitable for use in portable electronics, ensuring efficient power management.

Detailed and Complete Alternative Models

1. APX803L03-29SA-7: Similar to APX803L05-39SA-7 but with a lower threshold voltage of 2.9V.
2. APX803L10-49SA-7: Similar to APX803L05-39SA-7 but with a higher threshold voltage of 4.9V.
3. APX803M05-39SA-7: A micro-power version with even lower quiescent current for ultra-low-power applications.

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