ATL431BIDBZR

Product Overview

Category

The ATL431BIDBZR belongs to the category of voltage references.

Use

It is commonly used as a precision shunt regulator in various electronic circuits.

Characteristics

• Provides a stable reference voltage for precise voltage regulation.
• Offers high accuracy and low temperature coefficient.
• Operates over a wide temperature range.
• Exhibits low dynamic impedance.

Package

The ATL431BIDBZR is available in a small surface-mount SOT-23 package.

Essence

This product serves as a voltage reference, ensuring accurate and stable voltage regulation in electronic systems.

Packaging/Quantity

The ATL431BIDBZR is typically packaged in reels containing 3000 units.

Specifications

• Reference Voltage: 2.5V
• Operating Voltage Range: 2.5V to 36V
• Temperature Range: -40°C to +85°C
• Initial Accuracy: ±0.5%
• Dynamic Impedance: 0.22Ω
• Quiescent Current: 1mA

Detailed Pin Configuration

The ATL431BIDBZR has three pins:

1. Anode (A): Connected to the positive supply voltage.
2. Cathode (K): Connected to the ground or negative supply voltage.
3. Reference (R): Output pin providing the stable reference voltage.

Functional Features

• Precise voltage regulation: The ATL431BIDBZR ensures a stable output voltage regardless of input variations.
• Adjustable output voltage: By connecting external resistors, the reference voltage can be adjusted to meet specific requirements.
• Low power consumption: The quiescent current of 1mA minimizes power dissipation.

Advantages and Disadvantages

Advantages

• High accuracy and low temperature coefficient ensure reliable voltage regulation.
• Wide operating voltage range allows for versatile applications.
• Small package size enables space-saving designs.

Disadvantages

• Limited output current capability.
• Requires external resistors for adjustable voltage settings.

Working Principles

The ATL431BIDBZR operates based on the principle of a shunt regulator. It compares the reference voltage at the Reference pin with the voltage across the Anode and Cathode pins. By adjusting the current flowing through the device, it maintains a constant voltage drop across the reference pin, resulting in a stable output voltage.

Detailed Application Field Plans

The ATL431BIDBZR finds applications in various electronic systems, including:

1. Power supplies: Ensures precise voltage regulation in power supply circuits.
2. Battery charging circuits: Provides accurate voltage references for battery charging control.
3. Audio amplifiers: Maintains stable bias voltages for improved audio performance.
4. Industrial control systems: Offers reliable voltage references for precise control and measurement circuits.

Detailed and Complete Alternative Models

Some alternative models to the ATL431BIDBZR include:

1. TL431: Similar voltage reference with different package options.
2. LM4040: Precision shunt voltage reference with higher accuracy.
3. REF3030: Low-power voltage reference with adjustable output voltage.

These alternative models provide similar functionality but may have variations in specifications and package options.

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