AP431SBZTR-G1

Product Overview

Category

AP431SBZTR-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 reference voltage for precise voltage regulation.
• Offers high accuracy and low temperature coefficient.
• Operates over a wide temperature range.
• Requires minimal external components for operation.

Package

AP431SBZTR-G1 is available in a small surface-mount SOT-23 package.

Essence

The essence of AP431SBZTR-G1 lies in its ability to provide a stable and accurate reference voltage, making it suitable for applications requiring precise voltage regulation.

Packaging/Quantity

AP431SBZTR-G1 is typically packaged in reels containing 3000 units.

Specifications

• Reference Voltage: 2.5V
• Operating Temperature Range: -40°C to +85°C
• Output Current: Up to 100mA
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C

Detailed Pin Configuration

AP431SBZTR-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 reference voltage.

Functional Features

• Precision voltage reference: AP431SBZTR-G1 ensures a stable and accurate reference voltage, enabling precise voltage regulation in electronic circuits.
• Adjustable output: The reference voltage can be adjusted using external resistors to meet specific application requirements.
• Low quiescent current: Consumes minimal current when not actively regulating the voltage, resulting in power efficiency.
• Short-circuit protection: Incorporates built-in protection against short-circuits, enhancing the reliability of the circuit.

Advantages and Disadvantages

Advantages

• High accuracy and low temperature coefficient ensure precise voltage regulation.
• Wide operating temperature range allows for versatile application in various environments.
• Small package size enables space-saving designs.
• Adjustable output voltage provides flexibility.

Disadvantages

• Limited output current capability may not be suitable for high-power applications.
• Requires external resistors for voltage adjustment, adding complexity to the circuit design.

Working Principles

AP431SBZTR-G1 operates as a shunt regulator. It compares the reference voltage at the Reference (R) pin with the voltage across the load connected to the Cathode (K) pin. By adjusting the current flowing through the shunt resistor, it maintains a stable output voltage.

Detailed Application Field Plans

AP431SBZTR-G1 finds applications in various fields, including: 1. Power supplies: Provides voltage regulation in power supply circuits. 2. Battery charging systems: Ensures accurate charging voltage for batteries. 3. Audio amplifiers: Maintains a stable reference voltage for precise audio signal processing. 4. Industrial control systems: Offers reliable voltage regulation in industrial automation applications.

Detailed and Complete Alternative Models

Some alternative models to AP431SBZTR-G1 include: 1. TL431: A widely used adjustable precision shunt regulator. 2. LM4040: A series of precision voltage references available in different voltage options. 3. REF3030: Low-power, high-accuracy voltage reference ICs.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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