AS431HBNTR-G1

Product Overview

Category

AS431HBNTR-G1 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 voltage reference for accurate circuit operation.
• Offers high precision and low temperature coefficient.
• Can be used in both positive and negative feedback configurations.
• Operates over a wide temperature range.
• Requires minimal external components for operation.

Package

AS431HBNTR-G1 is available in a small SOT-23 package.

Essence

The essence of AS431HBNTR-G1 lies in its ability to provide a precise and stable voltage reference, ensuring reliable performance of electronic circuits.

Packaging/Quantity

AS431HBNTR-G1 is typically packaged in reels containing 3000 units.

Specifications

• Reference Voltage: 2.5V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.5V to 36V
• Quiescent Current: 80µA

Detailed Pin Configuration

AS431HBNTR-G1 features three pins:

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

Functional Features

• Precise voltage reference: AS431HBNTR-G1 provides a stable reference voltage for accurate circuit operation.
• Adjustable output: The output voltage can be adjusted using external resistors.
• Low quiescent current: It consumes minimal current when not actively regulating the voltage.
• Short-circuit protection: AS431HBNTR-G1 has built-in protection against short-circuits.

Advantages and Disadvantages

Advantages

• High precision and low temperature coefficient ensure accurate voltage regulation.
• Wide operating temperature range allows for use in various environments.
• Simple circuit design due to minimal external components required.
• Can be used in both positive and negative feedback configurations.

Disadvantages

• Limited output current capability.
• Requires careful consideration of power dissipation to avoid overheating.

Working Principles

AS431HBNTR-G1 operates based on the principle of a shunt regulator. It compares the reference voltage with the voltage across a resistor connected in series with the load. By adjusting the current flowing through the shunt resistor, it maintains a stable output voltage regardless of load variations.

Detailed Application Field Plans

AS431HBNTR-G1 finds applications in various fields, including:

1. Power supply circuits: Provides stable voltage references for precise regulation.
2. Battery charging circuits: Ensures accurate charging voltage control.
3. Audio amplifiers: Maintains consistent biasing voltages for improved audio quality.
4. Sensor interfaces: Offers reliable voltage references for sensor calibration.

Detailed and Complete Alternative Models

Some alternative models to AS431HBNTR-G1 include:

1. TL431: Similar shunt regulator with adjustable output voltage.
2. LM4040: Precision voltage reference with different voltage options.
3. LT1236: High-precision shunt voltage reference with low drift.

These alternatives provide similar functionality and can be considered based on specific requirements.

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