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TL431ACLPE3
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TL431ACLPE3

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Reference
  • Characteristics: Adjustable Precision Shunt Regulator
  • Package: TO-92 (3-Lead Plastic Package)
  • Essence: Programmable Precision References
  • Packaging/Quantity: Tape and Reel, 2000 units per reel

Specifications

  • Reference Voltage Range: 2.495V to 36V
  • Output Current: 1mA to 100mA
  • Temperature Range: -40°C to +85°C
  • Line Regulation: 0.2% typical
  • Load Regulation: 0.4% typical
  • Reference Impedance: 0.2Ω typical
  • Cathode Current: 1mA to 100mA
  • Anode Current: 1mA to 150mA
  • Dynamic Output Impedance: 0.25Ω typical

Detailed Pin Configuration

The TL431ACLPE3 has three pins:

  1. Anode (A): Connected to the positive terminal of the voltage source.
  2. Cathode (K): Connected to the load or ground.
  3. Reference (R): Provides the adjustable reference 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

  • Easy to use and implement in various applications.
  • Provides a stable and accurate voltage reference.
  • Can be adjusted to desired voltage levels.
  • Suitable for both low and high current applications.
  • Offers excellent line and load regulation.

Disadvantages

  • Requires an external resistor network for precise voltage adjustment.
  • Limited output current capability compared to other voltage regulators.
  • Not suitable for applications requiring high voltage levels.

Working Principles

The TL431ACLPE3 is a precision shunt regulator that operates by comparing the reference voltage at the Reference (R) pin with an external voltage divider network connected to the Anode (A) and Cathode (K) pins. By adjusting the resistors in the voltage divider, the output voltage can be set to the desired level. The TL431ACLPE3 then regulates the current flowing through the Cathode (K) pin to maintain a stable output voltage.

Detailed Application Field Plans

The TL431ACLPE3 is widely used in various applications, including:

  1. Voltage regulation in power supplies.
  2. Battery charging circuits.
  3. Switching power converters.
  4. Precision measurement equipment.
  5. Audio amplifiers and preamplifiers.
  6. LED lighting systems.
  7. Automotive electronics.
  8. Industrial control systems.

Detailed and Complete Alternative Models

Some alternative models to the TL431ACLPE3 include:

  1. TLV431BQDBZR: SOT-23 package, adjustable precision shunt regulator.
  2. LM4040CIM3-2.5/NOPB: SOT-23 package, precision micropower shunt voltage reference.
  3. REF3030AIDBZT: SOT-23 package, low-power voltage reference.
  4. MAX6126AASA25+: SOIC package, ultra-low-noise voltage reference.
  5. LT1461ACS8-5#PBF: SOIC package, precision series voltage reference.

These alternative models offer similar functionality and can be used as substitutes depending on specific application requirements.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng TL431ACLPE3 trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of TL431ACLPE3 in technical solutions:

  1. Q: What is TL431ACLPE3? A: TL431ACLPE3 is a programmable precision voltage reference that can be used in various applications such as voltage regulation, feedback control, and precision measurement.

  2. Q: What is the operating voltage range of TL431ACLPE3? A: The operating voltage range of TL431ACLPE3 is typically between 2.5V and 36V.

  3. Q: How does TL431ACLPE3 provide voltage regulation? A: TL431ACLPE3 compares the reference voltage with an external voltage divider network and adjusts its output accordingly to maintain a stable regulated voltage.

  4. Q: Can TL431ACLPE3 be used as a shunt regulator? A: Yes, TL431ACLPE3 can be used as a shunt regulator by connecting it between the load and ground to regulate the voltage across the load.

  5. Q: What is the typical accuracy of TL431ACLPE3? A: The typical accuracy of TL431ACLPE3 is ±1%.

  6. Q: Can TL431ACLPE3 be used in high-temperature environments? A: Yes, TL431ACLPE3 has a wide temperature range and can operate reliably in high-temperature environments up to 125°C.

  7. Q: Is TL431ACLPE3 suitable for low-power applications? A: Yes, TL431ACLPE3 has a low quiescent current consumption, making it suitable for low-power applications where power efficiency is important.

  8. Q: Can TL431ACLPE3 be used in battery charging circuits? A: Yes, TL431ACLPE3 can be used in battery charging circuits to regulate the charging voltage and prevent overcharging.

  9. Q: Does TL431ACLPE3 have built-in protection features? A: Yes, TL431ACLPE3 has built-in short-circuit protection and thermal shutdown features to protect itself and the connected circuitry.

  10. Q: Can TL431ACLPE3 be used in audio amplifier circuits? A: Yes, TL431ACLPE3 can be used in audio amplifier circuits as a voltage reference for biasing or as a feedback element for controlling the output voltage.

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