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STL7N80K5
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STL7N80K5

Product Overview

Category: Power MOSFET
Use: Switching applications in power supplies, lighting, and motor control
Characteristics: High voltage capability, low input capacitance, and fast switching speed
Package: TO-220
Essence: N-channel enhancement mode power MOSFET
Packaging/Quantity: Available in reels of 250 units

Specifications

  • Voltage Rating: 800V
  • Continuous Drain Current: 7A
  • On-state Resistance: 1.4Ω
  • Gate Threshold Voltage: 2-4V
  • Total Gate Charge: 15nC
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

  1. Gate (G)
  2. Drain (D)
  3. Source (S)

Functional Features

  • Low input and output capacitance for high-speed switching
  • Enhanced avalanche energy capability
  • Excellent dV/dt ruggedness

Advantages and Disadvantages

Advantages: - High voltage capability - Fast switching speed - Low input capacitance

Disadvantages: - Relatively high on-state resistance - Limited continuous drain current

Working Principles

The STL7N80K5 operates on the principle of an N-channel enhancement mode power MOSFET. When a sufficient gate-source voltage is applied, it allows current to flow between the drain and source terminals, effectively acting as a switch in various power electronic applications.

Detailed Application Field Plans

  1. Power Supplies: Used for high-voltage switching in AC-DC converters and DC-DC converters.
  2. Lighting: Employed in ballast circuits for fluorescent and LED lighting systems.
  3. Motor Control: Utilized in variable frequency drives and motor control circuits.

Detailed and Complete Alternative Models

  1. STL8N80K5: Higher continuous drain current of 8A
  2. STL6N80K5: Lower on-state resistance of 1.2Ω
  3. STL7N60K5: Lower voltage rating of 600V

In conclusion, the STL7N80K5 is a high-voltage power MOSFET suitable for various switching applications in power supplies, lighting, and motor control. Its fast switching speed and low input capacitance make it an ideal choice for high-performance systems. However, its relatively high on-state resistance and limited continuous drain current should be considered when selecting this component for specific designs.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de STL7N80K5 en soluciones técnicas

  1. What is the maximum drain-source voltage rating of the STL7N80K5 MOSFET?

    • The maximum drain-source voltage rating of the STL7N80K5 is 800V.

  2. What is the continuous drain current rating of the STL7N80K5 MOSFET?

    • The continuous drain current rating of the STL7N80K5 is 7A.

  3. Can the STL7N80K5 be used in high-frequency switching applications?

    • Yes, the STL7N80K5 is suitable for high-frequency switching due to its low input and output capacitance.

  4. What is the typical on-state resistance (RDS(on)) of the STL7N80K5 at a specified gate-source voltage?

    • The typical on-state resistance of the STL7N80K5 is 1.45 ohms at a gate-source voltage of 10V.

  5. Is the STL7N80K5 suitable for use in power supply and inverter circuits?

    • Yes, the STL7N80K5 is commonly used in power supply and inverter circuits due to its high voltage and current ratings.

  6. Does the STL7N80K5 require a heatsink for thermal management?

    • Depending on the application and power dissipation, a heatsink may be required to manage the thermal performance of the STL7N80K5.

  7. What are the typical gate-source threshold voltage and gate charge of the STL7N80K5?

    • The typical gate-source threshold voltage is around 4V, and the gate charge is approximately 18nC.

  8. Can the STL7N80K5 be used in automotive applications?

    • Yes, the STL7N80K5 is suitable for certain automotive applications, but it's important to consider temperature and voltage requirements.

  9. What are the recommended operating temperature range and storage temperature range for the STL7N80K5?

    • The recommended operating temperature range is -55°C to 150°C, and the storage temperature range is -55°C to 175°C.

  10. Are there any common failure modes or reliability concerns associated with the STL7N80K5?

    • Common failure modes include overcurrent or overvoltage stress, and reliability concerns can arise if the device operates beyond its specified limits. Proper circuit protection and design considerations are important for ensuring reliability.