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TL431IPKG3
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Reference
- Characteristics: Adjustable, Precision, Shunt Regulator
- Package: TO-252-3 (DPAK)
- Essence: Programmable Precision Reference
- Packaging/Quantity: Tape and Reel, 2,500 units 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
- Dropout Voltage: 1.5V typical at 10mA load current
Detailed Pin Configuration
The TL431IPKG3 has three pins: 1. Anode (A): Connected to the reference voltage input. 2. Cathode (K): Connected to the ground or negative supply. 3. Control (C): Connected to an external resistor divider network to set the desired output voltage.
Functional Features
- Programmable Output Voltage: The TL431IPKG3 can be programmed to provide a precise output voltage by adjusting the resistor divider network connected to the control pin.
- High Precision: It offers a low temperature coefficient and excellent line and load regulation, ensuring accurate voltage references.
- Low Dropout Voltage: The device operates with a low dropout voltage, minimizing power dissipation and maximizing efficiency.
- Fast Response Time: The TL431IPKG3 responds quickly to changes in the input voltage, making it suitable for applications requiring rapid voltage regulation.
Advantages and Disadvantages
Advantages: - Wide range of adjustable output voltages - High precision and accuracy - Low dropout voltage - Fast response time
Disadvantages: - Requires an external resistor divider network for voltage programming - Limited output current capability (up to 100mA)
Working Principles
The TL431IPKG3 is a shunt regulator that uses a precision reference voltage to compare against the input voltage. It adjusts the current flowing through the cathode terminal to maintain a constant output voltage at the control pin. By adjusting the resistor divider network connected to the control pin, the desired output voltage can be set.
Detailed Application Field Plans
The TL431IPKG3 finds applications in various fields, including: 1. Power Supplies: It is commonly used as a voltage reference in linear power supplies to provide stable and accurate output voltages. 2. Battery Charging Systems: The TL431IPKG3 ensures precise voltage regulation in battery charging circuits, preventing overcharging or undercharging of batteries. 3. Audio Amplifiers: It can be employed as a voltage reference in audio amplifiers to maintain consistent signal levels and improve overall audio quality. 4. Industrial Control Systems: The TL431IPKG3 is utilized in industrial control systems to regulate voltages for sensors, actuators, and other critical components.
Detailed and Complete Alternative Models
Some alternative models to the TL431IPKG3 include: 1. TL431ACLP: TO-92 package, adjustable precision shunt regulator. 2. TLV431BQDBZR: SOT-23 package, low-voltage adjustable precision shunt regulator. 3. LM4040AIM3-2.5/NOPB: SOT-23 package, precision micropower shunt voltage reference.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TL431IPKG3 v technických řešeních
Sure! Here are 10 common questions and answers related to the application of TL431IPKG3 in technical solutions:
Q: What is TL431IPKG3? A: TL431IPKG3 is a three-terminal adjustable precision shunt regulator commonly used in various technical applications.
Q: What is the purpose of TL431IPKG3? A: TL431IPKG3 is used to provide stable voltage references, voltage regulation, and error amplification in electronic circuits.
Q: How does TL431IPKG3 work? A: TL431IPKG3 compares the reference voltage with an external voltage divider network and adjusts its output to maintain a constant voltage.
Q: What is the voltage range of TL431IPKG3? A: The voltage range of TL431IPKG3 is typically from 2.5V to 36V.
Q: Can TL431IPKG3 be used as a voltage regulator? A: Yes, TL431IPKG3 can be used as a voltage regulator by connecting it in a feedback loop with an external transistor or MOSFET.
Q: What are the typical applications of TL431IPKG3? A: TL431IPKG3 is commonly used in power supplies, battery chargers, LED drivers, audio amplifiers, and other voltage regulation circuits.
Q: How accurate is TL431IPKG3? A: TL431IPKG3 has a high level of accuracy, typically with a reference voltage tolerance of ±1%.
Q: Can TL431IPKG3 handle high currents? A: TL431IPKG3 itself can handle only low currents, but it can be used to control higher currents by driving an external pass element.
Q: Is TL431IPKG3 suitable for automotive applications? A: Yes, TL431IPKG3 is often used in automotive applications due to its wide operating temperature range and robustness.
Q: Are there any precautions to consider when using TL431IPKG3? A: It is important to ensure proper heat dissipation, avoid exceeding the maximum ratings, and follow the manufacturer's guidelines for stability and reliability.
Please note that these answers are general and may vary depending on specific circuit designs and requirements.