APX803D-29SRG-7

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Low-power consumption - High accuracy - Wide operating voltage range - Reset output signal - Small package size

Package: SOT-23-3

Essence: The APX803D-29SRG-7 is a voltage supervisor IC that monitors the power supply voltage of a system and provides a reset signal when the voltage drops below a certain threshold.

Packaging/Quantity: The APX803D-29SRG-7 is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Threshold Voltage: 2.9V
• Accuracy: ±1.5%
• Quiescent Current: 1.0µA
• Reset Timeout Period: 140ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The APX803D-29SRG-7 has three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin that provides a reset signal when the monitored voltage drops below the threshold.

Functional Features

• Monitors the power supply voltage and generates a reset signal when it falls below the threshold.
• Provides a stable reset signal during power-up and power-down sequences.
• Low quiescent current ensures minimal power consumption.
• Wide operating voltage range allows for versatile applications.
• Reset timeout period prevents false resets due to temporary voltage fluctuations.

Advantages and Disadvantages

Advantages: - Low-power consumption makes it suitable for battery-powered devices. - Accurate voltage monitoring ensures reliable system operation. - Small package size allows for space-saving designs. - Wide operating voltage range provides flexibility in various applications.

Disadvantages: - Fixed threshold voltage may not be suitable for all voltage monitoring requirements. - Reset timeout period may not be adjustable, limiting customization options.

Working Principles

The APX803D-29SRG-7 operates by comparing the power supply voltage with a fixed threshold voltage. When the 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 voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The APX803D-29SRG-7 is commonly used in various electronic systems where reliable voltage monitoring is crucial. Some application fields include:

1. Microcontrollers: Ensures proper system initialization and prevents data corruption during power fluctuations.
2. Industrial Control Systems: Monitors power supply integrity to prevent equipment damage or malfunction.
3. Automotive Electronics: Protects sensitive components from voltage variations and ensures safe operation.
4. Battery-Powered Devices: Maximizes battery life by providing accurate low-voltage detection.

Detailed and Complete Alternative Models

1. APX803D-29SRG-7-T: Same specifications and features as APX803D-29SRG-7, but available in tape and reel packaging with 10000 units per reel.
2. APX803D-33SRG-7: Similar voltage supervisor IC with a threshold voltage of 3.3V, suitable for different voltage monitoring requirements.
3. APX803D-25SRG-7: Similar voltage supervisor IC with a threshold voltage of 2.5V, suitable for lower voltage applications.

These alternative models offer similar functionality but cater to specific voltage threshold needs.

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