AP431SHBN1TR-G1

Product Overview

• Category: Integrated Circuits
• Use: Voltage References
• Characteristics: High precision, low dropout voltage, adjustable output
• Package: SOT-23-3
• Essence: Precision shunt regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Reference Voltage Range: 2.5V to 36V
• Output Voltage Tolerance: ±1%
• Operating Current Range: 80µA to 100mA
• Dropout Voltage: 0.4V (typical)
• Temperature Coefficient: 50ppm/°C (typical)

Detailed Pin Configuration

The AP431SHBN1TR-G1 is a three-pin device with the following pin configuration:

1. Anode (A): Connected to the positive supply voltage.
2. Cathode (K): Connected to the load or ground.
3. Reference (R): Provides the regulated output voltage.

Functional Features

• Precision Regulation: The AP431SHBN1TR-G1 provides a highly accurate reference voltage for precise regulation in various applications.
• Low Dropout Voltage: With a low dropout voltage of 0.4V, this device can operate efficiently even when the input voltage is close to the output voltage.
• Adjustable Output: The output voltage can be adjusted by connecting external resistors to the reference pin, allowing flexibility in different circuit designs.

Advantages and Disadvantages

Advantages

• High precision and accuracy in voltage regulation.
• Low dropout voltage enables efficient operation.
• Adjustable output voltage for versatile applications.
• Small package size (SOT-23-3) allows for space-saving designs.
• Wide operating current range provides flexibility in various load conditions.

Disadvantages

• Limited maximum reference voltage of 36V.
• Requires external resistors for output voltage adjustment.

Working Principles

The AP431SHBN1TR-G1 is a precision shunt regulator that operates by comparing the reference voltage at the reference pin (R) with the voltage across a resistor connected between the anode (A) and cathode (K) pins. The device adjusts the current flowing through the shunt resistor to maintain a constant voltage drop, thus regulating the output voltage.

Detailed Application Field Plans

The AP431SHBN1TR-G1 can be used in a wide range of applications, including:

1. Voltage regulators in power supplies and battery charging circuits.
2. Precision measurement equipment requiring accurate voltage references.
3. Audio amplifiers and other audio-related circuits.
4. Industrial control systems and instrumentation.
5. Automotive electronics, such as engine management systems and lighting controls.

Detailed and Complete Alternative Models

1. TL431: Similar precision shunt regulator with adjustable output voltage.
2. LM4040: Precision voltage reference with fixed output voltage options.
3. LT1236: High-precision shunt voltage reference with low temperature coefficient.

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

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