AS431IARTR-G1

Product Overview

Category

AS431IARTR-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 with high accuracy.
• Offers low temperature coefficient and excellent line regulation.
• Operates over a wide temperature range.
• Suitable for both battery-powered and industrial applications.

Package

AS431IARTR-G1 is available in a small SOT-23 package.

Essence

The essence of AS431IARTR-G1 lies in its ability to provide a precise and stable voltage reference, ensuring reliable performance in electronic systems.

Packaging/Quantity

AS431IARTR-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

AS431IARTR-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): Provides the stable voltage reference output.

Functional Features

• Precise voltage reference for accurate circuit operation.
• Low quiescent current consumption for energy efficiency.
• Wide operating voltage range for versatile applications.
• Excellent temperature stability for consistent performance.
• Adjustable output voltage through external resistor connection.

Advantages and Disadvantages

Advantages

• High accuracy and stability.
• Low power consumption.
• Compact package size.
• Wide operating temperature range.

Disadvantages

• Limited output current capability.
• Requires an external resistor for voltage adjustment.

Working Principles

AS431IARTR-G1 operates based on the principle of a shunt regulator. It compares the reference voltage at the R pin with the voltage across the external resistor connected to the cathode (K) pin. By adjusting the current flowing through the shunt resistor, it maintains a stable output voltage regardless of load variations.

Detailed Application Field Plans

AS431IARTR-G1 finds applications in various electronic systems, including but not limited to:

1. Power supplies and voltage regulators.
2. Battery charging circuits.
3. Precision measurement instruments.
4. Audio amplifiers and signal processing circuits.
5. Industrial control systems.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to AS431IARTR-G1 are:

1. TL431AIDBZR: Similar voltage reference with adjustable output.
2. LM4040CIM3-2.5/NOPB: Precision shunt voltage reference with fixed 2.5V output.
3. MAX6126AASA25+: Ultra-low noise precision voltage reference.

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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