TLV431BCDBZT

Product Overview

• Category: Integrated Circuits
• Use: Voltage Reference
• Characteristics: Low-voltage adjustable precision shunt regulator
• Package: SOT-23 (3-pin)
• Essence: Precision voltage reference with adjustable output
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Reference Voltage Range: 1.24V to 6V
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +125°C
• Line Regulation: ±0.2% typical
• Load Regulation: ±0.4% typical
• Temperature Coefficient: 50ppm/°C typical
• Input Voltage Range: 2.5V to 16V

Detailed Pin Configuration

The TLV431BCDBZT has three pins:

1. Anode (A): Connected to the input voltage source.
2. Cathode (K): Connected to the ground or reference voltage.
3. Adjust (ADJ): Provides the adjustable output voltage.

Functional Features

• Adjustable output voltage allows precise voltage regulation.
• Low operating current consumption.
• High accuracy and stability over temperature and load variations.
• Fast response time to changes in input voltage.
• Low output impedance for improved performance.

Advantages

• Wide range of adjustable output voltages.
• Excellent line and load regulation.
• Low temperature coefficient ensures stability across varying temperatures.
• Small package size enables space-saving designs.
• Low cost compared to alternative solutions.

Disadvantages

• Limited output current capability.
• Requires external resistors for voltage adjustment.
• Not suitable for high-power applications.

Working Principles

The TLV431BCDBZT is a precision shunt regulator that maintains a stable output voltage regardless of input variations. It operates by comparing the reference voltage (1.24V) with the voltage across the external resistor divider connected to the ADJ pin. By adjusting the resistors, the desired output voltage can be set.

Detailed Application Field Plans

The TLV431BCDBZT finds applications in various fields, including:

1. Power Supplies: Provides accurate voltage references for power supply circuits.
2. Battery Management: Ensures precise voltage regulation in battery charging and monitoring systems.
3. Audio Amplifiers: Maintains stable bias voltages for audio amplifier circuits.
4. Instrumentation: Used as a voltage reference in measurement and control systems.
5. Automotive Electronics: Provides voltage stability in automotive applications.

Detailed and Complete Alternative Models

1. TL431ACDBZR: Similar specifications and package, but with a different pin configuration.
2. LM4040CIZ-4.1: Fixed 4.1V voltage reference in a TO-92 package.
3. REF3030AIDBZT: Adjustable voltage reference with higher output current capability.

(Note: This list is not exhaustive and other alternative models may exist.)

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