ON Semiconductor
চিত্রটি উপস্থাপনা হতে পারে৷
পণ্যের বিবরণের জন্য স্পেসিফিকেশন দেখুন৷.
KA431SMFTF
বিস্তারিত দেখুন ডেটাশিট

KA431SMFTF

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable output voltage - Low temperature coefficient - High accuracy - Low quiescent current - Wide operating temperature range

Package: SOT-23-3

Essence: The KA431SMFTF is a three-terminal adjustable shunt regulator that provides a highly accurate reference voltage. It is commonly used in various electronic circuits to stabilize and regulate voltages.

Packaging/Quantity: The KA431SMFTF is available in tape and reel packaging, with 3000 units per reel.

Specifications

  • Reference Voltage Range: 2.5V to 36V
  • Output Current Range: 1mA to 100mA
  • Operating Temperature Range: -40°C to +85°C
  • Initial Accuracy: ±0.4%
  • Temperature Coefficient: 50ppm/°C

Detailed Pin Configuration

The KA431SMFTF has three pins:

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

Functional Features

  • Adjustable Output Voltage: The KA431SMFTF allows users to set the desired output voltage by connecting external resistors.
  • Low Quiescent Current: The device consumes very low current when regulating the voltage, making it suitable for battery-powered applications.
  • High Accuracy: With an initial accuracy of ±0.4%, the KA431SMFTF ensures precise voltage regulation.
  • Low Temperature Coefficient: The temperature coefficient of 50ppm/°C minimizes voltage variations with temperature changes.
  • Short Circuit Protection: The device includes built-in protection against short circuits, preventing damage to the circuitry.

Advantages and Disadvantages

Advantages: - Wide operating temperature range allows for use in various environments. - Adjustable output voltage provides flexibility in different applications. - Low quiescent current prolongs battery life in portable devices. - High accuracy ensures precise voltage regulation. - Short circuit protection enhances the reliability of the circuit.

Disadvantages: - Limited output current range may not be suitable for high-power applications. - SOT-23-3 package may require additional space on the PCB.

Working Principles

The KA431SMFTF operates as a shunt regulator, maintaining a constant voltage across the load by diverting excess current through an internal resistor. By adjusting the reference pin voltage using external resistors, the desired output voltage can be set.

Detailed Application Field Plans

The KA431SMFTF is widely used in various electronic circuits, including but not limited to: 1. Voltage regulators in power supplies 2. Battery chargers 3. Audio amplifiers 4. LED drivers 5. Temperature sensors 6. Switching power supplies

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the KA431SMFTF include: 1. TL431: A popular shunt regulator with adjustable output voltage and similar specifications. 2. LM4040: Precision micropower shunt voltage reference with low temperature coefficient. 3. LT1236: Ultra-stable precision reference with high accuracy and low drift.

These alternative models can be considered based on specific application requirements and availability.

Word count: 511

প্রযুক্তিগত সমাধানে KA431SMFTF এর প্রয়োগ সম্পর্কিত 10টি সাধারণ প্রশ্ন ও উত্তর তালিকাভুক্ত করুন

Sure! Here are 10 common questions and answers related to the application of KA431SMFTF in technical solutions:

  1. Q: What is KA431SMFTF? A: KA431SMFTF is a precision shunt regulator integrated circuit (IC) commonly used in technical solutions.

  2. Q: What is the purpose of KA431SMFTF? A: The purpose of KA431SMFTF is to regulate voltage by providing a stable reference voltage.

  3. Q: How does KA431SMFTF work? A: KA431SMFTF works by comparing the input voltage with its internal reference voltage and adjusting the output voltage accordingly.

  4. Q: What are the typical applications of KA431SMFTF? A: KA431SMFTF is commonly used in power supplies, battery chargers, voltage regulators, and other electronic circuits requiring precise voltage regulation.

  5. Q: What is the voltage range supported by KA431SMFTF? A: KA431SMFTF supports a wide voltage range typically from 2.5V to 36V.

  6. Q: Can KA431SMFTF handle high currents? A: Yes, KA431SMFTF can handle currents up to 100mA, making it suitable for various low-power applications.

  7. Q: Is KA431SMFTF temperature-compensated? A: Yes, KA431SMFTF is temperature-compensated, ensuring stable performance across different operating temperatures.

  8. Q: Does KA431SMFTF require external components for operation? A: Yes, KA431SMFTF requires external resistors and capacitors to set the desired output voltage and stability.

  9. Q: Can KA431SMFTF be used in both linear and switching power supplies? A: Yes, KA431SMFTF can be used in both linear and switching power supply designs.

  10. Q: Is KA431SMFTF available in different package types? A: Yes, KA431SMFTF is available in various package types, including SOT-23, SOT-89, and TO-92, providing flexibility for different PCB layouts and applications.

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