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IRFP460
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IRFP460

Product Overview

Category: Power MOSFET
Use: Switching applications in power supplies and motor control
Characteristics: High voltage, high speed switching, low on-resistance
Package: TO-247
Essence: Power transistor for high-frequency power converters
Packaging/Quantity: Typically sold individually

Specifications

  • Voltage Rating: 500V
  • Continuous Drain Current: 20A
  • Pulsed Drain Current: 80A
  • On-Resistance: 0.27Ω
  • Gate Threshold Voltage: 2-4V
  • Total Gate Charge: 45nC
  • Operating Temperature Range: -55°C to 175°C

Detailed Pin Configuration

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

Functional Features

  • Fast switching speed
  • Low gate drive power
  • High input impedance
  • Good thermal stability

Advantages and Disadvantages

Advantages: - High voltage capability - Low on-resistance - Suitable for high-frequency applications

Disadvantages: - Sensitivity to static electricity - Limited current-carrying capability compared to some alternatives

Working Principles

The IRFP460 operates based on the principle of field-effect transistors, where the flow of current between the drain and source terminals is controlled by the voltage applied to the gate terminal.

Detailed Application Field Plans

The IRFP460 is commonly used in: - Switch-mode power supplies - Motor control circuits - Electronic ballasts - Inverters

Detailed and Complete Alternative Models

  1. IRFP250: Lower voltage rating but higher continuous drain current
  2. IRFP4668: Higher voltage rating and lower on-resistance
  3. IRFB4110: Similar voltage rating with lower on-resistance

In conclusion, the IRFP460 is a versatile power MOSFET suitable for various switching applications in power electronics, offering high voltage capability and fast switching speed. Its characteristics make it well-suited for use in power supplies, motor control, and other high-frequency applications. However, users should be mindful of its sensitivity to static electricity and consider alternative models depending on specific application requirements.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de IRFP460 en soluciones técnicas

  1. What is the IRFP460?

    • The IRFP460 is a power MOSFET transistor designed for high-power applications such as motor control, power supplies, and inverters.

  2. What is the maximum voltage and current rating of the IRFP460?

    • The IRFP460 has a maximum voltage rating of 500V and a continuous drain current rating of 20A.

  3. How do I calculate the power dissipation of the IRFP460 in my circuit?

    • The power dissipation can be calculated using the formula P = I^2 * Rds(on), where I is the current flowing through the MOSFET and Rds(on) is the on-state resistance of the MOSFET.

  4. What are the typical applications of the IRFP460?

    • The IRFP460 is commonly used in applications such as motor drives, uninterruptible power supplies (UPS), and welding equipment.

  5. How do I drive the IRFP460 in my circuit?

    • The IRFP460 requires a gate driver circuit to ensure proper turn-on and turn-off characteristics. A gate resistor is also recommended to limit the peak gate current.

  6. What are the key thermal considerations when using the IRFP460?

    • Proper heat sinking is essential to ensure that the IRFP460 operates within its temperature limits. Thermal resistance and junction-to-case thermal resistance should be taken into account.

  7. Can the IRFP460 be used in parallel to increase current handling capability?

    • Yes, the IRFP460 can be used in parallel to share the load current, but careful attention must be paid to matching the characteristics of each MOSFET and ensuring proper current sharing.

  8. What are the important parameters to consider when selecting a heatsink for the IRFP460?

    • Parameters to consider include the thermal resistance of the heatsink, the maximum allowable junction temperature, and the ambient temperature in the application.

  9. How do I protect the IRFP460 from overcurrent and overvoltage conditions?

    • Overcurrent protection can be implemented using external circuitry such as fuses or current-limiting resistors. Overvoltage protection can be achieved using clamping diodes or transient voltage suppressors.

  10. What are the typical failure modes of the IRFP460 and how can they be mitigated?

    • Common failure modes include overtemperature, overcurrent, and overstress. Mitigation strategies include proper thermal management, current limiting, and surge protection measures.