TL431BCDRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: Adjustable Precision Shunt Regulator
• Package: SOIC-8
• Essence: Programmable Precision References
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

The TL431BCDRG4 is an integrated circuit voltage reference that operates as a precision shunt regulator. It is designed to provide a stable reference voltage with high accuracy and low temperature coefficient. The device is programmable, allowing the user to set the output voltage according to their specific requirements.

The TL431BCDRG4 features a wide operating voltage range of 2.5V to 36V, making it suitable for various applications. It has a typical output voltage tolerance of ±1%, ensuring precise voltage regulation. The device also exhibits low dynamic impedance, enabling it to maintain stability even under varying load conditions.

Pin Configuration

The TL431BCDRG4 is housed in a standard SOIC-8 package. The pin configuration is as follows:

```

---

| | --| REF K |-- Anode --| COMP A |-- Cathode --| VREF T |-- Control Terminal --| H | |___________| ```

Functional Features

• Adjustable Output Voltage: The TL431BCDRG4 allows users to program the desired output voltage by connecting external resistors.
• High Accuracy: With a typical output voltage tolerance of ±1%, the device provides precise voltage regulation.
• Low Temperature Coefficient: The TL431BCDRG4 exhibits a low temperature coefficient, ensuring stable performance across a wide temperature range.
• Wide Operating Voltage Range: The device can operate within a voltage range of 2.5V to 36V, making it suitable for various applications.
• Low Dynamic Impedance: The TL431BCDRG4 maintains stability even under varying load conditions due to its low dynamic impedance.

Advantages and Disadvantages

Advantages: - Programmable output voltage - High accuracy - Low temperature coefficient - Wide operating voltage range - Low dynamic impedance

Disadvantages: - Requires external resistors for voltage programming - Limited to SOIC-8 package option

Working Principles

The TL431BCDRG4 operates based on the principle of a precision shunt regulator. It compares the reference voltage (VREF) at the control terminal with the feedback voltage from the cathode (COMP). By adjusting the current flowing through the device, it regulates the output voltage to match the desired value set by the user.

Detailed Application Field Plans

The TL431BCDRG4 finds application in various fields, including but not limited to: 1. Power Supply Regulation: The device can be used to regulate the output voltage of power supplies, ensuring stable and accurate voltage levels. 2. Battery Charging Systems: It is employed in battery charging circuits to maintain precise voltage levels during the charging process. 3. Voltage Monitoring: The TL431BCDRG4 can be utilized as a voltage monitor in systems where maintaining a specific voltage threshold is critical. 4. Audio Amplifiers: It is used in audio amplifiers to provide stable reference voltages for optimal audio performance.

Detailed and Complete Alternative Models

1. TL431ACDRG4: Similar to TL431BCDRG4, but available in a smaller SOT-23 package.
2. TLV431BQDBZR: A low-voltage version of the TL431BCDRG4, designed for applications requiring lower operating voltages.
3. LM4040AIM3-2.5: A precision voltage reference IC with fixed output voltage of 2.5V, suitable for applications not requiring adjustable voltage.

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

Word count: 445 words