AP431SAN1TR-G1

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: Precision, Low Dropout Voltage, Adjustable Output
• Package: SOT-23-3
• Essence: Provides a stable voltage reference for various electronic applications
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Reference Voltage Range: 1.24V to 6.0V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: ±50ppm/°C
• Dropout Voltage: 0.4V (typical) at 100mA load current
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AP431SAN1TR-G1 IC has three pins in the SOT-23-3 package: 1. Pin 1: Anode (A) 2. Pin 2: Cathode (K) 3. Pin 3: Reference (REF)

Functional Features

• Adjustable Output: The reference voltage can be adjusted using external resistors.
• Low Dropout Voltage: Allows operation with small input-output voltage differentials.
• Precision: Offers high accuracy and stability over temperature and load variations.
• Low Quiescent Current: Consumes minimal power during operation.

Advantages

• Wide Reference Voltage Range: Can be used in a variety of applications.
• Small Package Size: Enables space-saving designs.
• Low Power Consumption: Ideal for battery-powered devices.
• High Accuracy: Ensures precise voltage regulation.

Disadvantages

• Limited Maximum Load Current: May not be suitable for high-power applications.
• Sensitivity to External Noise: Requires proper filtering for optimal performance.

Working Principles

The AP431SAN1TR-G1 is a shunt voltage reference IC. It operates by comparing the voltage across a precision resistor (R1) with an internal reference voltage. The output voltage is adjusted by changing the resistance between the REF pin and ground using external resistors.

Detailed Application Field Plans

The AP431SAN1TR-G1 finds applications in various electronic systems, including: - Power Supplies: Provides stable voltage references for linear regulators. - Battery Management: Ensures accurate battery charging and monitoring. - Instrumentation: Offers precise voltage references for measurement circuits. - Audio Amplifiers: Maintains consistent biasing voltages for improved audio quality.

Detailed and Complete Alternative Models

• TL431: Similar shunt voltage reference IC with adjustable output.
• LM4040: Precision voltage reference IC with fixed output voltages.
• LT1236: High-precision voltage reference IC with low temperature coefficient.

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