APX803L20-39SA-7

Product Overview

Category

APX803L20-39SA-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 APX803L20-39SA-7 comes in a small SOT-23-3 package.

Essence

The essence of APX803L20-39SA-7 lies in its ability to provide accurate voltage monitoring and reset generation functions.

Packaging/Quantity

The product is typically packaged in reels, with each reel containing a specific quantity of APX803L20-39SA-7 units.

Specifications

• Operating Voltage Range: 2.0V to 5.5V
• Reset Threshold Voltage: 2.93V
• Reset Timeout Period: 200ms (typical)
• Quiescent Current: 1.0μA (typical)
• Power-On Reset Delay: 20ms (typical)

Detailed Pin Configuration

The APX803L20-39SA-7 has three pins:

1. VDD: This pin is connected to the power supply voltage.
2. GND: This pin is connected to the ground.
3. RESET: This pin outputs a reset signal when the monitored voltage drops below the threshold.

Functional Features

• Accurate voltage monitoring: The APX803L20-39SA-7 ensures precise monitoring of the power supply voltage.
• Reset generation: It generates a reset signal when the voltage falls below the specified threshold.
• Low-power consumption: The device operates with minimal power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide range of input voltages, providing flexibility in various applications.

Advantages and Disadvantages

Advantages

• High accuracy in voltage monitoring
• Low-power consumption extends battery life
• Small package size allows for space-saving designs
• Wide operating voltage range enhances versatility

Disadvantages

• Limited reset timeout period may not be suitable for certain applications requiring longer timeouts
• Lack of adjustable threshold voltage limits customization options

Working Principles

The APX803L20-39SA-7 works by continuously monitoring the power supply voltage. When the voltage drops below the specified threshold, the device generates a reset signal. This signal can be used to initiate system resets or trigger specific actions in electronic devices.

Detailed Application Field Plans

The APX803L20-39SA-7 finds applications in various fields, including:

1. Consumer electronics: Used in smartphones, tablets, and wearable devices to ensure stable power supply and prevent data loss during voltage fluctuations.
2. Industrial automation: Employed in control systems and sensors to monitor power supply integrity and initiate corrective actions if necessary.
3. Automotive electronics: Integrated into automotive systems to monitor battery voltage and trigger appropriate responses in case of low voltage conditions.
4. Medical devices: Ensures reliable power supply in medical equipment, preventing malfunctions that could compromise patient safety.

Detailed and Complete Alternative Models

1. APX803L30-29SA-7: Similar to APX803L20-39SA-7 but with a different reset threshold voltage.
2. APX803M20-39SA-7: Offers additional features such as adjustable reset timeout period.
3. APX803H20-39SA-7: Higher accuracy version with tighter voltage monitoring tolerances.

(Note: The above alternative models are provided for reference purposes and may have different specifications and characteristics.)

In conclusion, the APX803L20-39SA-7 is a voltage supervisor that provides accurate voltage monitoring and reset generation functions. Its low-power consumption, small package size, and wide operating voltage range make it suitable for various applications in consumer electronics, industrial automation, automotive electronics, and medical devices. While it has limitations in terms of reset timeout period and adjustable threshold voltage, alternative models with different specifications are available to meet specific requirements.