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KA317TU
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KA317TU

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Adjustable output voltage - High precision - Low dropout voltage - Overcurrent protection - Thermal shutdown protection

Package: TO-220

Essence: The KA317TU is a versatile voltage regulator IC that provides adjustable output voltage with high precision and low dropout voltage. It offers overcurrent and thermal shutdown protection, making it suitable for various applications.

Packaging/Quantity: The KA317TU is available in a TO-220 package and is typically sold in reels or tubes containing multiple units.

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Voltage Range: 1.2V to 37V
  • Output Current: Up to 1.5A
  • Dropout Voltage: 1.5V (typical)
  • Line Regulation: 0.01%/V
  • Load Regulation: 0.1%
  • Quiescent Current: 10mA (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The KA317TU has three pins:

  1. Input Pin (VIN): This pin is connected to the input voltage source.
  2. Output Pin (VOUT): This pin provides the regulated output voltage.
  3. Adjustment Pin (ADJ): This pin is used to set the desired output voltage.

Functional Features

  • Adjustable Output Voltage: The KA317TU allows the user to adjust the output voltage within a specified range.
  • High Precision: It provides precise output voltage regulation, ensuring stable performance.
  • Low Dropout Voltage: The dropout voltage is minimal, enabling efficient operation even when the input voltage is close to the desired output voltage.
  • Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit from excessive current.
  • Thermal Shutdown Protection: It includes a thermal shutdown mechanism that prevents overheating and protects the IC from damage.

Advantages and Disadvantages

Advantages: - Wide input voltage range - Adjustable output voltage - High precision regulation - Overcurrent and thermal protection - Suitable for various applications

Disadvantages: - Dropout voltage may limit use in low voltage applications - Requires external components for proper operation

Working Principles

The KA317TU is a linear voltage regulator based on the adjustable positive voltage regulator architecture. It uses a reference voltage and feedback mechanism to regulate the output voltage. By adjusting the resistance connected to the ADJ pin, the desired output voltage can be set. The internal circuitry ensures stable output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

The KA317TU finds applications in various fields, including but not limited to: 1. Power supply circuits 2. Battery charging systems 3. Audio amplifiers 4. Instrumentation circuits 5. Automotive electronics 6. Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the KA317TU include: - LM317T - LT1083CP - LM350T - L7805CV - LM1117-ADJ

These alternatives offer similar functionality and can be used as substitutes depending on specific requirements.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi KA317TU dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of KA317TU in technical solutions:

  1. Q: What is KA317TU? A: KA317TU is a voltage regulator integrated circuit (IC) commonly used in technical solutions to provide a stable output voltage.

  2. Q: What is the input voltage range for KA317TU? A: The input voltage range for KA317TU is typically between 3V and 40V.

  3. Q: What is the output voltage range of KA317TU? A: The output voltage range of KA317TU can be adjusted from 1.25V to 37V using external resistors.

  4. Q: How much current can KA317TU handle? A: KA317TU can handle a maximum output current of 1.5A, but it is recommended to use a heatsink for higher currents.

  5. Q: Can KA317TU be used as a step-down (buck) converter? A: Yes, KA317TU can be used as a step-down converter by setting the output voltage lower than the input voltage.

  6. Q: Is KA317TU suitable for battery-powered applications? A: Yes, KA317TU is suitable for battery-powered applications as it has low quiescent current and can operate with low input voltages.

  7. Q: Does KA317TU have built-in protection features? A: Yes, KA317TU has built-in overcurrent and thermal shutdown protection to prevent damage to the IC.

  8. Q: Can KA317TU be used in adjustable power supply designs? A: Yes, KA317TU is commonly used in adjustable power supply designs due to its ability to regulate the output voltage.

  9. Q: Are there any specific considerations for PCB layout when using KA317TU? A: It is recommended to keep the input and output traces short, use proper decoupling capacitors, and provide adequate heat dissipation for efficient operation.

  10. Q: Can multiple KA317TU ICs be connected in parallel for higher current output? A: Yes, multiple KA317TU ICs can be connected in parallel to increase the overall current handling capacity while sharing the load evenly.

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