APX803L20-28SA-7

Product Overview

Category

APX803L20-28SA-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 function

Package

The APX803L20-28SA-7 comes in a small SOT-23-3 package.

Essence

This product ensures stable operation of electronic devices by monitoring the power supply voltage and generating a reset signal when it falls below a certain threshold.

Packaging/Quantity

The APX803L20-28SA-7 is typically packaged in reels, with 3000 units per reel.

Specifications

• Operating Voltage Range: 2.0V to 6.0V
• Threshold Voltage: 2.8V
• Reset Output Type: Active Low
• Reset Output Delay Time: 200ms (typical)
• Quiescent Current: 1.0μA (typical)

Detailed Pin Configuration

The APX803L20-28SA-7 has three pins:

1. VDD: Power supply input pin
2. GND: Ground pin
3. RESET: Reset output pin

Functional Features

• Monitors power supply voltage continuously
• Generates a reset signal when voltage drops below the threshold
• Provides a delayed reset output to ensure stability during power-up

Advantages and Disadvantages

Advantages

• Low power consumption helps conserve energy
• Wide operating voltage range makes it compatible with various devices
• Small package size allows for space-saving designs
• Accurate voltage monitoring ensures reliable performance

Disadvantages

• The reset output delay time may not be suitable for all applications
• Limited availability of alternative models with different specifications

Working Principles

The APX803L20-28SA-7 operates by comparing the power supply voltage with a preset threshold. When the voltage drops below the threshold, the reset output is activated, indicating a power failure or unstable voltage condition. The reset output remains active until the voltage rises above the threshold and stabilizes.

Detailed Application Field Plans

The APX803L20-28SA-7 finds application in various electronic devices where stable power supply voltage is critical. Some common application fields include:

1. Microcontrollers and microprocessors
2. Memory modules
3. Communication devices
4. Industrial control systems
5. Automotive electronics

Detailed and Complete Alternative Models

While the APX803L20-28SA-7 offers specific specifications, there are alternative models available from different manufacturers that cater to varying requirements. Some alternative models worth considering are:

1. MAX803L: Similar functionality with adjustable reset threshold voltage.
2. MCP100: Offers additional features like manual reset input and watchdog timer.
3. TPS3808: Provides more precise voltage monitoring and adjustable delay time.

These alternative models offer flexibility in terms of specifications and features, allowing designers to choose the most suitable option for their specific application needs.

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