AP431IAZTR-G1

Product Overview

Category

AP431IAZTR-G1 belongs to the category of voltage references.

Use

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

Characteristics

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

Package

AP431IAZTR-G1 is available in a small SOT-23 package, which is suitable for surface mount applications.

Essence

The essence of AP431IAZTR-G1 lies in its ability to provide a stable reference voltage for precise voltage regulation in electronic systems.

Packaging/Quantity

AP431IAZTR-G1 is typically packaged in reels containing 3000 units per reel.

Specifications

• Reference Voltage: 2.5V
• Operating Voltage Range: 2.7V to 36V
• Output Current: Up to 100mA
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

AP431IAZTR-G1 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): Provides the stable reference voltage.

Functional Features

• Precision voltage reference
• Adjustable output voltage using external resistors
• Low dropout voltage
• Overcurrent protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable voltage regulation.
• Wide operating voltage range allows for versatile applications.
• Adjustable output voltage provides flexibility in circuit design.
• Small package size enables space-saving designs.

Disadvantages

• Limited output current capability compared to other voltage regulators.
• Requires external resistors for voltage adjustment, adding complexity to the circuit.

Working Principles

AP431IAZTR-G1 operates based on the principle of a shunt regulator. It compares the reference voltage at the Reference (R) pin with the voltage across an external resistor network. By adjusting the resistance values, the output voltage can be precisely regulated.

Detailed Application Field Plans

AP431IAZTR-G1 finds applications in various electronic systems, including:

1. Power supplies: Provides stable voltage references for power management circuits.
2. Battery charging circuits: Ensures accurate voltage regulation during battery charging.
3. Audio amplifiers: Maintains precise biasing voltages for improved audio performance.
4. Instrumentation systems: Offers reliable voltage references for measurement circuits.
5. Automotive electronics: Used in automotive control units for voltage regulation.

Detailed and Complete Alternative Models

Some alternative models to AP431IAZTR-G1 include:

1. TL431: Similar shunt voltage reference with adjustable output voltage.
2. LM4040: Precision voltage reference with fixed output voltage options.
3. REF02: High-precision voltage reference with low temperature coefficient.

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

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