TL431AIDBVR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: Adjustable, Precision, Shunt Regulator
• Package: SOT-23-5
• Essence: Programmable Precision Reference
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Reference Voltage Range: 2.495V to 36V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Sink Current Capability: 1mA to 100mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TL431AIDBVR is a 3-pin device with the following pin configuration: 1. Anode (A): Connected to the reference voltage input. 2. Cathode (K): Connected to the ground or negative supply. 3. Adjust (ADJ): Output pin that provides the regulated voltage.

Functional Features

• Programmable Output Voltage: The TL431AIDBVR allows users to set the output voltage by adjusting the resistive divider connected to the ADJ pin.
• Precision Voltage Reference: It provides a highly accurate and stable reference voltage for various applications.
• Shunt Regulator: The TL431AIDBVR acts as a shunt regulator, maintaining a constant voltage across the load.
• Low Power Consumption: It operates with low quiescent current, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Wide operating voltage range - High accuracy and stability - Adjustable output voltage - Low power consumption

Disadvantages: - Limited sink current capability - Requires external components for proper operation

Working Principles

The TL431AIDBVR is based on the principle of a shunt regulator. It compares the reference voltage at the ADJ pin with an internal voltage reference and adjusts the current flowing through the cathode to maintain a constant voltage across the load.

Detailed Application Field Plans

The TL431AIDBVR finds applications in various fields, including: 1. Voltage Regulation: It is commonly used as a precision voltage reference in power supplies, battery chargers, and voltage regulators. 2. Feedback Control: It can be employed in feedback control circuits to maintain a stable output voltage or current. 3. Battery Management: The TL431AIDBVR is utilized in battery management systems to monitor and regulate battery charging and discharging processes. 4. Audio Amplifiers: It can be used in audio amplifiers to provide biasing and stabilization for improved audio performance.

Detailed and Complete Alternative Models

Some alternative models to the TL431AIDBVR include: - TL431ACDBZR - TL431BCDBZT - TL431CDBZR - TL431IDBZR

These models offer similar functionality and characteristics, providing flexibility in design choices.

In conclusion, the TL431AIDBVR is a versatile integrated circuit that serves as a programmable precision voltage reference. With its adjustable output voltage, high accuracy, and low power consumption, it finds applications in various fields such as voltage regulation, feedback control, battery management, and audio amplifiers. While it has limitations in sink current capability and requires external components, alternative models are available to suit specific design requirements.