TL1431CDRG4

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Precision shunt regulator - Adjustable output voltage - Low dynamic impedance - Wide operating current range - High accuracy and stability - Low temperature coefficient

Package: SOIC-8

Essence: The TL1431CDRG4 is a precision shunt regulator that provides a stable reference voltage. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The TL1431CDRG4 is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Reference Voltage Range: 2.5V to 36V
• Operating Current Range: 1mA to 100mA
• Temperature Coefficient: ±50ppm/°C
• Line Regulation: 0.2%/V
• Load Regulation: 0.4%/mA
• Output Voltage Tolerance: ±1%
• Maximum Cathode Current: 100mA

Detailed Pin Configuration

The TL1431CDRG4 has 8 pins arranged as follows:

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| | --| REF K |-- --| Vref A |-- --| COMP T |-- --| GND H |-- --| TRIM E |-- --| ANOD R |-- --| CATH N |-- |___________| ```

Pin Description: - REF: Reference voltage output - Vref: Reference voltage input - COMP: Comparator input - GND: Ground - TRIM: Trim pin for adjusting the reference voltage - ANOD: Anode of the internal zener diode - CATH: Cathode of the internal zener diode

Functional Features

• Precision voltage reference
• Adjustable output voltage through the trim pin
• Low dynamic impedance for stability
• Wide operating current range for flexibility
• High accuracy and stability over temperature and time
• Low temperature coefficient for reliable performance

Advantages and Disadvantages

Advantages: - Provides a stable and precise voltage reference - Adjustable output voltage allows for customization - Wide operating current range suits various applications - High accuracy and stability ensure reliable performance - Low temperature coefficient minimizes errors due to temperature changes

Disadvantages: - Limited maximum cathode current (100mA) - Requires external components for proper operation

Working Principles

The TL1431CDRG4 operates as a shunt regulator, maintaining a stable reference voltage between the REF and Vref pins. The internal zener diode is used to generate the reference voltage, which can be adjusted using the trim pin. The COMP pin is connected to an external voltage divider network to compare the desired output voltage with the reference voltage. The device regulates the current flowing through the cathode based on this comparison, ensuring a constant output voltage.

Detailed Application Field Plans

The TL1431CDRG4 finds applications in various fields, including: 1. Power supply circuits 2. Battery charging systems 3. Voltage regulators 4. Analog-to-digital converters 5. Instrumentation circuits 6. Audio amplifiers 7. Sensor interfaces 8. Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the TL1431CDRG4 are: 1. LM431 2. TL431 3. LT1009 4. REF02 5. MAX6126

These alternatives offer similar functionality and can be used as substitutes depending on specific requirements.

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