AZ431BR-ATRE1

Product Overview

Category

The AZ431BR-ATRE1 belongs to the category of voltage references.

Use

It is primarily used as a precision shunt regulator for various applications.

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Wide operating voltage range
• Low dynamic impedance
• Adjustable output voltage
• Low power consumption

Package

The AZ431BR-ATRE1 comes in a small SOT-23 package, which is suitable for surface mount applications.

Essence

This product is designed to provide a stable and precise voltage reference for electronic circuits.

Packaging/Quantity

The AZ431BR-ATRE1 is typically packaged in reels containing 3000 units.

Specifications

• Reference Voltage Range: 1.24V to 16V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Output Current: 100mA (maximum)
• Quiescent Current: 60µA (typical)

Detailed Pin Configuration

The AZ431BR-ATRE1 has three pins:

1. REF: This pin is connected to the external resistor divider network to set the desired output voltage.
2. ANODE: This pin is connected to the anode of the internal shunt transistor.
3. CATHODE: This pin is connected to the cathode of the internal shunt transistor.

Functional Features

• Precision voltage reference
• Adjustable output voltage
• Low power consumption
• High accuracy and stability
• Wide operating voltage range
• Low temperature coefficient
• Short-circuit protection

Advantages and Disadvantages

Advantages

• Provides a stable and precise voltage reference
• Adjustable output voltage allows flexibility in circuit design
• Low power consumption helps conserve energy
• High accuracy and stability ensure reliable performance
• Wide operating voltage range accommodates various applications

Disadvantages

• Limited output current capability (100mA maximum)
• Requires an external resistor divider network for voltage adjustment

Working Principles

The AZ431BR-ATRE1 operates based on the principle of a shunt regulator. It compares the reference voltage at the REF pin with the voltage across the external resistor divider network to generate a precise output voltage. The internal shunt transistor regulates the current flow to maintain the desired output voltage.

Detailed Application Field Plans

The AZ431BR-ATRE1 finds applications in various fields, including:

1. Power supply circuits: Provides stable voltage references for voltage regulators and power management systems.
2. Industrial control systems: Ensures accurate voltage references for analog-to-digital converters and sensor interfaces.
3. Automotive electronics: Used in automotive voltage regulation systems and battery management circuits.
4. Consumer electronics: Enables precise voltage references for audio amplifiers, display drivers, and battery charging circuits.

Detailed and Complete Alternative Models

1. TL431: A popular alternative with similar specifications and functionality.
2. LM4040: Offers a fixed output voltage with high accuracy and low temperature coefficient.
3. LT1236: Provides a precision voltage reference with ultra-low drift and noise.

These alternative models can be considered based on specific application requirements and design constraints.

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