AS431ARTR-E1

Product Overview

Category

AS431ARTR-E1 belongs to the category of voltage references.

Use

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

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

AS431ARTR-E1 comes in a small SOT-23 package, which is compact and easy to handle.

Essence

The essence of AS431ARTR-E1 lies in its ability to provide a precise and stable voltage reference for electronic circuits.

Packaging/Quantity

This product is typically packaged in reels, containing a quantity of 3000 units per reel.

Specifications

• Reference Voltage: 2.5V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Line Regulation: 0.2%/V
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 18V
• Quiescent Current: 80µA

Detailed Pin Configuration

AS431ARTR-E1 has three pins:

1. Cathode (K): Connected to the ground or reference voltage.
2. Anode (A): Connected to the input voltage.
3. Adjust (ADJ): Output pin that provides the regulated voltage.

Functional Features

• Precise voltage reference for maintaining stability in electronic circuits.
• Adjustable output voltage through external resistors.
• Low power consumption.
• Short-circuit protection.
• Thermal shutdown protection.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited output current capability.
• Requires external resistors for voltage adjustment.

Working Principles

AS431ARTR-E1 operates as a shunt regulator, maintaining a constant voltage between the cathode and adjust pins. It compares the reference voltage with the input voltage and adjusts the current flow to maintain a stable output voltage.

Detailed Application Field Plans

AS431ARTR-E1 finds applications in various fields, including:

1. Power supply circuits: Provides stable voltage references for power management ICs.
2. Battery-powered devices: Ensures consistent voltage levels for efficient battery utilization.
3. Industrial control systems: Maintains precise voltage references for accurate measurements and control.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to AS431ARTR-E1 are:

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

These alternative models offer similar functionality and can be chosen based on specific requirements.

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