TL431ACDRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: Adjustable Precision Shunt Regulator
• Package: SOIC-8
• Essence: The TL431ACDRG4 is a three-terminal adjustable precision shunt regulator. It can be used to provide a stable reference voltage in various electronic circuits.
• Packaging/Quantity: The TL431ACDRG4 is typically sold in reels of 2500 units.

Specifications

• Reference Voltage Range: 2.495V to 36V
• Operating Current Range: 1mA to 100mA
• Temperature Range: -40°C to +85°C
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)

Detailed Pin Configuration

The TL431ACDRG4 has eight pins arranged as follows:

```

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| | --| REF K |-- --| Vref A |-- --| Anode C |-- --| Cathode |-- --| K |-- --| K |-- |___________| ```

1. REF: Reference Voltage Output
2. Vref: Reference Voltage Input
3. Anode: Anode Terminal
4. Cathode: Cathode Terminal
5. K: Cathode Terminal
6. K: Cathode Terminal

Functional Features

• Provides a stable reference voltage that can be adjusted using external resistors.
• High accuracy and low temperature coefficient make it suitable for precision applications.
• Low dynamic impedance ensures good stability over a wide range of operating conditions.
• Fast response time allows for quick regulation of the output voltage.

Advantages and Disadvantages

Advantages: - Adjustable reference voltage allows for flexibility in circuit design. - High accuracy and low temperature coefficient ensure precise voltage regulation. - Wide operating current range makes it suitable for various applications. - Low dynamic impedance provides good stability.

Disadvantages: - Requires external resistors for voltage adjustment, adding complexity to the circuit. - Limited output current capability compared to other voltage regulators. - Sensitive to noise and fluctuations in input voltage.

Working Principles

The TL431ACDRG4 operates based on the principle of a shunt regulator. It compares the reference voltage (Vref) with the voltage across the cathode and anode terminals. By adjusting the resistance connected between the reference and cathode terminals, the output voltage can be set to a desired value. The TL431ACDRG4 continuously monitors the output voltage and adjusts the current flowing through the cathode terminal to maintain a stable reference voltage.

Detailed Application Field Plans

The TL431ACDRG4 is widely used in various electronic circuits where a stable reference voltage is required. Some common application areas include:

1. Voltage regulators: The TL431ACDRG4 can be used as a precision voltage reference in linear voltage regulators to provide a stable output voltage.
2. Switching power supplies: It can be employed as a feedback element in switching power supplies to regulate the output voltage.
3. Battery charging circuits: The TL431ACDRG4 can be utilized in battery charging circuits to control the charging voltage and ensure proper charging of batteries.
4. Audio amplifiers: It can be used in audio amplifier circuits to provide a stable bias voltage for improved audio performance.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the TL431ACDRG4 are:

1. LM4040: Precision Shunt Voltage Reference
2. LT1236: Micropower Precision Shunt Voltage Reference
3. MAX6126: Ultra-High-Precision Voltage Reference

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

In conclusion, the TL431ACDRG4 is a versatile voltage reference IC that offers adjustable precision shunt regulation. Its wide range of applications, high accuracy, and stability make it a popular choice in various electronic circuits.