APX803L05-49SA-7

Product Overview

Category

APX803L05-49SA-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
• Reset output delay time adjustable

Package

The APX803L05-49SA-7 comes in a small SOT-23-5 package.

Essence

The essence of APX803L05-49SA-7 lies in its ability to provide accurate voltage monitoring and reset functions, ensuring stable operation of electronic devices.

Packaging/Quantity

The product is typically packaged in reels, with each reel containing a specific quantity of APX803L05-49SA-7 units.

Specifications

• Supply Voltage Range: 1.0V to 6.0V
• Reset Threshold Voltage: 4.9V ± 1.5%
• Reset Output Type: Active-Low
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.0µA (typical)

Detailed Pin Configuration

The APX803L05-49SA-7 has five pins arranged as follows:

```

---

| | --| VDD | --| GND | --| MR | --| RESET | |_______| ```

• VDD: Power supply input pin
• GND: Ground pin
• MR: Manual reset input pin
• RESET: Reset output pin

Functional Features

• Accurate voltage monitoring: The APX803L05-49SA-7 ensures that the power supply voltage remains within the desired range.
• Reset function: It provides a reset signal to the microcontroller or other devices when the voltage drops below the threshold.
• Adjustable reset delay: The reset output delay time can be adjusted according to the application requirements.

Advantages and Disadvantages

Advantages

• Low-power consumption ensures minimal impact on overall system power consumption.
• Wide operating voltage range allows compatibility with various electronic devices.
• Small package size enables space-saving designs.
• Accurate voltage monitoring enhances system reliability.

Disadvantages

• Limited reset threshold voltage options may not suit all applications.
• Lack of additional features such as overvoltage protection or watchdog timer.

Working Principles

The APX803L05-49SA-7 operates by continuously monitoring the supply voltage. When the voltage drops below the preset threshold, the reset output is activated, signaling the need for a system reset. The reset output remains active until the voltage rises above the threshold again.

Detailed Application Field Plans

The APX803L05-49SA-7 finds applications in various electronic devices where stable power supply voltage monitoring is crucial. Some potential application fields include:

1. Microcontrollers: Ensuring reliable operation by resetting the system in case of voltage fluctuations.
2. Industrial Control Systems: Monitoring power supply voltage to prevent malfunctions and ensure safe operation.
3. Battery-Powered Devices: Protecting battery life by triggering a reset when the voltage drops below a certain level.
4. Communication Equipment: Maintaining stable operation by monitoring power supply voltage variations.

Detailed and Complete Alternative Models

1. APX803L03-29SA-7: Similar to APX803L05-49SA-7 but with a lower reset threshold voltage of 2.9V.
2. APX803L10-49SA-7: Similar to APX803L05-49SA-7 but with a higher reset threshold voltage of 10V.
3. APX803M05-49SA-7: A micro-power voltage supervisor with similar features but optimized for low-power applications.

These alternative models offer different reset threshold voltages to cater to specific application requirements.

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