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TL431CDBZRG4
Product Overview
Category: Integrated Circuits (ICs)
Use: Voltage References
Characteristics: - Adjustable Precision Shunt Regulator - Programmable Output Voltage - Low Dynamic Output Impedance - Wide Operating Current Range - High Temperature Stability - Low Output Noise
Package: SOT-23-3
Essence: The TL431CDBZRG4 is a precision shunt regulator that can be used to provide a stable reference voltage in various electronic circuits.
Packaging/Quantity: Tape & Reel, 3000 pieces per reel
Specifications
- Reference Voltage Range: 2.495V to 36V
- Operating Current Range: 1mA to 100mA
- Temperature Range: -40°C to +85°C
- Line Regulation: 0.2% (typical)
- Load Regulation: 0.4% (typical)
- Output Voltage Tolerance: ±1%
- Cathode Current: 1mA to 100mA
Detailed Pin Configuration
The TL431CDBZRG4 has three pins:
- Anode (A): Connected to the positive supply voltage.
- Cathode (K): Connected to the load or ground.
- Reference (R): Provides the regulated output voltage.
Functional Features
- Adjustable Output Voltage: The TL431CDBZRG4 allows for precise adjustment of the output voltage by using external resistors.
- Precision Shunt Regulation: It provides a stable reference voltage with low dynamic output impedance and high temperature stability.
- Wide Operating Current Range: The device can operate within a wide range of current levels, making it suitable for various applications.
- Low Output Noise: The TL431CDBZRG4 generates minimal noise, ensuring clean and reliable voltage regulation.
Advantages and Disadvantages
Advantages: - High precision and stability - Adjustable output voltage - Wide operating current range - Low output noise
Disadvantages: - Requires external resistors for precise voltage adjustment - Limited temperature range (-40°C to +85°C)
Working Principles
The TL431CDBZRG4 operates as a shunt regulator by comparing the reference voltage at the Reference (R) pin with the voltage across the external resistor network. It adjusts the cathode current to maintain a stable output voltage. By changing the values of the external resistors, the output voltage can be precisely adjusted within the specified range.
Detailed Application Field Plans
The TL431CDBZRG4 is widely used in various applications, including:
- Voltage Regulation: It can be used as a precision voltage reference in power supplies, battery chargers, and voltage regulators.
- Feedback Control: It is commonly employed in feedback control circuits to provide accurate voltage references for operational amplifiers, analog-to-digital converters, and other analog circuits.
- Battery Management: The TL431CDBZRG4 can be utilized in battery management systems to monitor and regulate battery charging and discharging processes.
- LED Lighting: It finds application in LED lighting systems to maintain constant brightness levels by regulating the LED driver's output voltage.
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the TL431CDBZRG4 include:
- LM4040: Precision Micropower Shunt Voltage Reference
- LT1009: Precision Reference
- REF3030: Low Dropout Voltage Reference
- MAX6126: Ultra-High-Precision Voltage Reference
These alternatives can be considered based on specific requirements and design constraints.
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Énumérez 10 questions et réponses courantes liées à l'application de TL431CDBZRG4 dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of TL431CDBZRG4 in technical solutions:
Q: What is TL431CDBZRG4? A: TL431CDBZRG4 is a programmable precision voltage reference that can be used in various applications such as voltage regulation, overvoltage protection, and current limiting.
Q: What is the operating voltage range of TL431CDBZRG4? A: The operating voltage range of TL431CDBZRG4 is typically from 2.5V to 36V.
Q: How does TL431CDBZRG4 provide voltage regulation? A: TL431CDBZRG4 compares the reference voltage with an external voltage divider network and adjusts its output accordingly to maintain a stable regulated voltage.
Q: Can TL431CDBZRG4 be used for overvoltage protection? A: Yes, TL431CDBZRG4 can be used as a shunt regulator to protect sensitive components from overvoltage conditions by diverting excess current away from the load.
Q: What is the typical accuracy of TL431CDBZRG4? A: The typical accuracy of TL431CDBZRG4 is ±1%.
Q: Can TL431CDBZRG4 be used for current limiting? A: Yes, TL431CDBZRG4 can be used as a current limiter by sensing the load current and adjusting its output voltage to limit the current flowing through the load.
Q: What is the maximum cathode current of TL431CDBZRG4? A: The maximum cathode current of TL431CDBZRG4 is 100mA.
Q: Can TL431CDBZRG4 operate in temperature extremes? A: Yes, TL431CDBZRG4 has a wide operating temperature range of -40°C to 125°C, making it suitable for various environments.
Q: Is TL431CDBZRG4 available in different package options? A: Yes, TL431CDBZRG4 is available in the SOT-23 and SOIC-8 packages, providing flexibility for different PCB layouts.
Q: Are there any application notes or reference designs available for TL431CDBZRG4? A: Yes, Texas Instruments provides application notes and reference designs that showcase various use cases and circuit configurations using TL431CDBZRG4. These resources can be found on their website.
Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.