Microsemi Corporation
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SG7805T-883B
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SG7805T-883B

Product Overview

Category

SG7805T-883B belongs to the category of voltage regulators.

Use

This product is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

  • Voltage regulation: SG7805T-883B provides a fixed output voltage of 5 volts.
  • High reliability: This component is designed to operate under harsh environmental conditions, making it suitable for use in rugged applications.
  • Wide temperature range: It can function reliably across a wide temperature range, ensuring stability in various operating conditions.

Package

SG7805T-883B is available in a TO-220 package. This package type offers good thermal dissipation properties, allowing efficient heat transfer from the device.

Essence

The essence of SG7805T-883B lies in its ability to regulate voltage accurately and reliably, ensuring stable power supply to electronic circuits.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 50 units per reel/tube.

Specifications

  • Input voltage range: 7V to 35V
  • Output voltage: 5V
  • Output current: Up to 1A
  • Dropout voltage: 2V (maximum)
  • Line regulation: 0.04% (typical)
  • Load regulation: 0.1% (typical)
  • Operating temperature range: -55°C to +125°C

Detailed Pin Configuration

SG7805T-883B has three pins:

  1. Input pin (Vin): This pin is connected to the input voltage source.
  2. Ground pin (GND): This pin is connected to the ground reference.
  3. Output pin (Vout): This pin provides the regulated output voltage.

Functional Features

  • Voltage regulation: SG7805T-883B maintains a constant output voltage of 5V, regardless of input voltage fluctuations.
  • Overcurrent protection: It incorporates overcurrent protection to safeguard the circuit from excessive current flow.
  • Thermal shutdown: In case of excessive temperature rise, the device shuts down to prevent damage.

Advantages and Disadvantages

Advantages

  • Accurate voltage regulation
  • High reliability in harsh environments
  • Wide operating temperature range
  • Overcurrent protection
  • Thermal shutdown feature

Disadvantages

  • Dropout voltage of 2V may limit its use in low voltage applications.
  • Limited output current capacity (up to 1A).

Working Principles

SG7805T-883B is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

SG7805T-883B finds applications in various electronic devices and systems, including: - Power supplies for microcontrollers and other digital ICs - Battery charging circuits - Audio amplifiers - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to SG7805T-883B include: - LM7805: A widely used voltage regulator with similar specifications and pin configuration. - MC7805: Another popular voltage regulator offering comparable performance. - UA7805: A reliable alternative with a wide temperature range.

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

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SG7805T-883B v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SG7805T-883B in technical solutions:

  1. Q: What is SG7805T-883B? A: SG7805T-883B is a voltage regulator IC that provides a fixed 5V output voltage.

  2. Q: What are the typical applications of SG7805T-883B? A: SG7805T-883B is commonly used in various electronic devices and circuits where a stable 5V power supply is required.

  3. Q: What is the maximum input voltage for SG7805T-883B? A: The maximum input voltage for SG7805T-883B is typically around 35V.

  4. Q: Can SG7805T-883B handle high current loads? A: Yes, SG7805T-883B can handle currents up to 1A, making it suitable for many low to medium power applications.

  5. Q: How does SG7805T-883B regulate the output voltage? A: SG7805T-883B uses a feedback mechanism to maintain a constant 5V output voltage regardless of changes in input voltage or load conditions.

  6. Q: Is an external heat sink required for SG7805T-883B? A: It depends on the power dissipation and ambient temperature. For higher power applications, an external heat sink may be necessary to prevent overheating.

  7. Q: Can SG7805T-883B operate in both positive and negative voltage supplies? A: No, SG7805T-883B is designed to work with positive voltage supplies only.

  8. Q: Does SG7805T-883B have built-in protection features? A: Yes, SG7805T-883B typically includes features like thermal shutdown and overcurrent protection to safeguard against excessive heat or current.

  9. Q: Can I use SG7805T-883B in automotive applications? A: Yes, SG7805T-883B is often used in automotive electronics as long as the input voltage and operating conditions are within its specified range.

  10. Q: Are there any alternatives to SG7805T-883B for 5V voltage regulation? A: Yes, there are other voltage regulator ICs available in the market, such as LM7805 or AMS1117, which can also provide a stable 5V output.