TL431QDBVRG4

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: Adjustable Precision Shunt Regulator
• Package: SOT-23 (3-Lead)
• Essence: Programmable Precision References
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Reference Voltage Range: 2.495V to 36V
• Output Current: 100mA
• Temperature Range: -40°C to +85°C
• Line Regulation: 0.2% typical
• Load Regulation: 0.4% typical
• Reference Input Current: 80µA typical
• Cathode Current: 1mA to 100mA

Detailed Pin Configuration

The TL431QDBVRG4 is a 3-lead integrated circuit with the following pin configuration:

1. Anode (A): Connected to the reference voltage input.
2. Cathode (C): Connected to the regulated output voltage.
3. Reference (R): Connected to the internal reference voltage.

Functional Features

• Programmable output voltage reference.
• High precision and stability.
• Low dynamic impedance.
• Wide operating temperature range.
• Low power consumption.
• Fast response time.

Advantages and Disadvantages

Advantages

• Provides accurate and stable voltage references.
• Easy to use and integrate into various circuits.
• Offers programmable output voltage.
• Suitable for a wide range of applications.
• Low power consumption.

Disadvantages

• Limited output current capability.
• Requires external components for proper operation.
• Sensitivity to noise and fluctuations in the input voltage.

Working Principles

The TL431QDBVRG4 is a precision shunt regulator that operates by comparing the reference voltage at the Reference (R) pin with the input voltage at the Anode (A) pin. It adjusts the Cathode (C) current to maintain a constant output voltage. By programming the reference voltage using external resistors, the TL431QDBVRG4 can provide precise and adjustable voltage references.

Detailed Application Field Plans

The TL431QDBVRG4 is widely used in various applications, including:

1. Voltage regulation in power supplies.
2. Battery charging circuits.
3. Voltage monitoring and protection circuits.
4. Precision instrumentation.
5. Audio amplifiers and preamplifiers.
6. Industrial control systems.
7. Automotive electronics.
8. LED lighting applications.

Detailed and Complete Alternative Models

• TL431AQDBZR: Adjustable Precision Shunt Regulator, SOT-23 package.
• TLV431BQDBZT: Low-Voltage Adjustable Precision Shunt Regulator, SOT-23 package.
• LM4040AIM3-2.5/NOPB: Precision Micropower Shunt Voltage Reference, SOT-23 package.
• REF3030AIDBZT: Precision Micropower Voltage Reference, SOT-23 package.
• MAX6126AASA25+: Ultra-High-Precision Voltage Reference, SOT-23 package.

These alternative models offer similar functionality and can be used as substitutes for the TL431QDBVRG4 in various applications.

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