Texas Instruments
Bild kan vara representation.
Se specifikationer för produktinformation.
TL431IDBVTE4
Visa detalj Datablad

TL431IDBVTE4

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: 1mA to 100mA
  • Temperature Coefficient: ±50ppm/°C
  • Operating Temperature Range: -40°C to +85°C
  • Line Regulation: 0.2% typical
  • Load Regulation: 0.4% typical
  • Reference Input Current: 0.5μA typical
  • Reference Output Impedance: 0.2Ω typical

Detailed Pin Configuration

The TL431IDBVTE4 is a 3-lead SOT-23 package with the following pin configuration:

  1. Anode (A): Connected to the reference voltage input.
  2. Cathode (K): Connected to the ground or negative supply voltage.
  3. Reference (R): Provides the regulated output 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

  • Highly accurate voltage reference.
  • Easy to use and integrate into various circuits.
  • Wide range of output voltage options.
  • Suitable for both low and high current applications.
  • Excellent line and load regulation characteristics.

Disadvantages

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

Working Principles

The TL431IDBVTE4 is a precision shunt regulator that maintains a constant output voltage regardless of changes in the input voltage or load conditions. It operates by comparing the reference voltage at the Reference (R) pin with an internal voltage divider network. By adjusting the resistive divider connected to the Anode (A) and Cathode (K) pins, the desired output voltage can be set. The TL431IDBVTE4 then regulates the current flowing through it to maintain a stable output voltage.

Detailed Application Field Plans

The TL431IDBVTE4 is widely used in various applications, including:

  1. Voltage regulators in power supplies.
  2. Battery charging circuits.
  3. Switching power converters.
  4. Precision measurement instruments.
  5. Audio amplifiers.
  6. LED drivers.
  7. Industrial control systems.
  8. Automotive electronics.

Detailed and Complete Alternative Models

  • TL431ACLP
  • TL431BQDBZR
  • TL431CDR
  • TL431CPWLE
  • TL431IPKG3
  • TL431IZT
  • TL431LIPE3
  • TL431QDCKR
  • TL431QDR
  • TL431QPK

These alternative models offer similar functionality and performance characteristics as the TL431IDBVTE4 and can be used as substitutes depending on specific requirements.

In conclusion, the TL431IDBVTE4 is a versatile voltage reference integrated circuit with adjustable precision. Its wide range of applications, high accuracy, and stability make it a popular choice in various electronic systems.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TL431IDBVTE4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TL431IDBVTE4 in technical solutions:

  1. Q: What is TL431IDBVTE4? A: TL431IDBVTE4 is a programmable precision voltage reference that can be used in various applications as a voltage regulator or voltage reference.

  2. Q: What is the operating voltage range of TL431IDBVTE4? A: The operating voltage range of TL431IDBVTE4 is typically from 2.5V to 36V.

  3. Q: How does TL431IDBVTE4 work as a voltage regulator? A: TL431IDBVTE4 compares the reference voltage with an external voltage divider network and adjusts its output to maintain a constant voltage.

  4. Q: Can TL431IDBVTE4 be used as a shunt regulator? A: Yes, TL431IDBVTE4 can be used as a shunt regulator by connecting it between the load and ground.

  5. Q: What is the typical output voltage accuracy of TL431IDBVTE4? A: The typical output voltage accuracy of TL431IDBVTE4 is ±2%.

  6. Q: How can TL431IDBVTE4 be used for overvoltage protection? A: By connecting TL431IDBVTE4 in parallel with a zener diode, it can provide overvoltage protection by clamping the voltage at a certain level.

  7. Q: Can TL431IDBVTE4 be used in switching power supplies? A: Yes, TL431IDBVTE4 can be used in switching power supplies as a feedback element to regulate the output voltage.

  8. Q: What is the maximum current TL431IDBVTE4 can sink or source? A: TL431IDBVTE4 can typically sink or source up to 100mA of current.

  9. Q: How does temperature affect the performance of TL431IDBVTE4? A: TL431IDBVTE4 has a temperature coefficient of typically ±50ppm/°C, meaning its output voltage will change by 50ppm for every degree Celsius change in temperature.

  10. Q: Can TL431IDBVTE4 be used in automotive applications? A: Yes, TL431IDBVTE4 is suitable for automotive applications as it meets the AEC-Q100 automotive qualification standards.

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.