AP431SBNTR-G1

Product Overview

Category

AP431SBNTR-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

Package

AP431SBNTR-G1 is available in a small SOT-23 package, which is suitable for surface mount applications.

Essence

The essence of AP431SBNTR-G1 lies in its ability to provide a stable reference voltage for precise voltage regulation in electronic systems.

Packaging/Quantity

This product is typically packaged in reels containing 3000 units.

Specifications

• Reference Voltage: 2.5V
• Operating Voltage Range: 2.7V to 36V
• Output Current: Up to 100mA
• Temperature Coefficient: ±0.5mV/°C
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

AP431SBNTR-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

• Precise voltage regulation: AP431SBNTR-G1 ensures a stable output voltage regardless of input variations.
• Overvoltage protection: It safeguards the connected circuitry by limiting the output voltage.
• Low power consumption: The device operates with low quiescent current, minimizing power dissipation.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable voltage regulation.
• Wide operating voltage range allows for versatile applications.
• Small package size enables space-saving designs.
• Low output impedance facilitates efficient voltage transfer.

Disadvantages

• Limited output current capacity may restrict usage in high-power applications.
• Temperature coefficient could introduce slight variations in the reference voltage under extreme temperature conditions.

Working Principles

AP431SBNTR-G1 operates based on the principle of a shunt regulator. It compares the reference voltage at the Reference (R) pin with the input voltage. By adjusting the internal resistance, it maintains a constant output voltage regardless of input fluctuations.

Detailed Application Field Plans

AP431SBNTR-G1 finds applications in various electronic systems, including:

1. Power supplies: It ensures stable voltage regulation in power supply circuits.
2. Battery charging circuits: AP431SBNTR-G1 helps maintain precise charging voltages for batteries.
3. Voltage monitoring: It can be used to monitor and control voltage levels in different circuits.
4. Audio amplifiers: The device aids in maintaining consistent biasing voltages for audio amplification stages.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AP431SBNTR-G1 are:

1. TL431A: A popular shunt regulator with adjustable reference voltage.
2. LM4040: A precision voltage reference with low temperature drift.
3. REF3030: A high-accuracy voltage reference suitable for demanding applications.

These alternatives provide options for designers based on specific requirements and preferences.

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