TL1431CDR
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Reference
Characteristics: - Adjustable precision shunt regulator - Low temperature coefficient - Wide operating voltage range - High stability and accuracy - Low dynamic impedance - Programmable output voltage
Package: SOIC-8
Essence: The TL1431CDR is a versatile integrated circuit that serves as an adjustable precision shunt regulator. It provides a stable and accurate reference voltage for various applications.
Packaging/Quantity: The TL1431CDR is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.
Specifications
- Reference Voltage Range: 2.5V to 36V
- Output Current: Up to 100mA
- Temperature Coefficient: ±50ppm/°C
- Operating Temperature Range: -40°C to +85°C
- Input Voltage Range: Up to 40V
- Reference Voltage Tolerance: ±1%
- Dynamic Output Impedance: 0.25Ω
Pin Configuration
The TL1431CDR has eight pins arranged in the following configuration:
```
| | --|1 8|-- --|2 7|-- --|3 6|-- --|4 5|-- |____| ```
- Cathode
- Anode
- Reference Voltage
- Feedback Terminal
- Ground
- Control Terminal
- Discharge Terminal
- Vref Adjust
Functional Features
- Adjustable Output Voltage: The TL1431CDR allows precise adjustment of the output voltage by using external resistors.
- Voltage Reference: It provides a stable and accurate reference voltage for various applications.
- Temperature Compensation: The IC has a low temperature coefficient, ensuring stability over a wide temperature range.
- Programmable Output Voltage: The output voltage can be programmed using external resistors to suit specific requirements.
Advantages
- High accuracy and stability
- Wide operating voltage range
- Low dynamic impedance
- Programmable output voltage
- Temperature compensation ensures consistent performance
Disadvantages
- Limited output current capacity (up to 100mA)
- Requires external resistors for voltage adjustment
Working Principles
The TL1431CDR operates as a shunt regulator. It compares the reference voltage with the feedback voltage and adjusts the current flowing through the cathode and anode terminals to maintain a stable output voltage. By adjusting the resistance connected to the control terminal, the output voltage can be precisely set.
Application Field Plans
The TL1431CDR finds applications in various fields, including:
- Power Supply Regulation: It is used to provide a stable reference voltage for regulating power supplies in electronic devices.
- Battery Charging: The IC ensures precise voltage regulation during battery charging processes.
- Instrumentation: It is employed in precision measurement instruments that require accurate voltage references.
- Audio Amplifiers: The TL1431CDR helps maintain a stable bias voltage in audio amplifier circuits.
Alternative Models
- LM431: Similar adjustable precision shunt regulator with comparable specifications.
- TL431: Another popular adjustable precision shunt regulator offering similar functionality.
These alternative models can be considered based on specific application requirements and availability.
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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät TL1431CDR :n soveltamiseen teknisissä ratkaisuissa
Sure! Here are 10 common questions and answers related to the application of TL1431CDR in technical solutions:
Q1: What is TL1431CDR? A1: TL1431CDR is a precision shunt regulator integrated circuit that provides a stable voltage reference.
Q2: What is the typical operating voltage range for TL1431CDR? A2: The typical operating voltage range for TL1431CDR is from 2.5V to 36V.
Q3: How does TL1431CDR regulate voltage? A3: TL1431CDR regulates voltage by comparing the reference voltage with the feedback voltage and adjusting the current through the shunt resistor.
Q4: Can TL1431CDR be used as an adjustable voltage regulator? A4: Yes, TL1431CDR can be used as an adjustable voltage regulator by connecting external resistors to set the desired output voltage.
Q5: What is the maximum current that TL1431CDR can handle? A5: The maximum current that TL1431CDR can handle is typically around 100mA.
Q6: Is TL1431CDR suitable for low-power applications? A6: Yes, TL1431CDR is suitable for low-power applications due to its low quiescent current and low dropout voltage.
Q7: Can TL1431CDR be used for overvoltage protection? A7: Yes, TL1431CDR can be used for overvoltage protection by connecting it in parallel with the load and setting the reference voltage accordingly.
Q8: Does TL1431CDR have built-in temperature compensation? A8: Yes, TL1431CDR has built-in temperature compensation to ensure stable operation over a wide temperature range.
Q9: Can TL1431CDR be used in battery charging circuits? A9: Yes, TL1431CDR can be used in battery charging circuits to regulate the charging voltage and protect the battery from overcharging.
Q10: Are there any application notes or reference designs available for TL1431CDR? A10: Yes, Texas Instruments provides application notes and reference designs for TL1431CDR, which can be helpful in designing various technical solutions.
Please note that these answers are general and may vary depending on specific design requirements and application scenarios.