FDD5614P:Overview, Features, and Applications

The FDD5614P is an N-Channel PowerTrench MOSFET designed and manufactured by Fairchild Semiconductor (now part of ON Semiconductor). This MOSFET is designed for general-purpose power applications and offers low on-resistance and fast switching speeds.



The FDD5614P is an N-channel MOSFET designed to handle moderate to high power levels efficiently. It is part of ON Semiconductor's PowerTrench MOSFET series, which is optimized to minimize power dissipation and maximize efficiency in a variety of applications.


  1. Low On-Resistance (RDS(on)): This MOSFET offers low on-resistance, meaning it minimizes power losses and improves overall efficiency.

  2. Fast Switching Speeds: The MOSFET is designed for fast switching, which is advantageous in applications where rapid switching is required, such as in power supplies and motor control.

  3. High Current Handling Capabilities: Capable of handling moderate to high current levels, making it suitable for power applications.

  4. Robust and Reliable: The device is built to withstand moderate to high-power loads and has protective features to ensure reliable operation.

  5. Avalanche Energy Rating: It may have a high avalanche energy rating, making it suitable for applications where inductive loads are present.

  6. Low Gate Charge: This MOSFET may feature low gate charge, reducing switching losses and enabling high-speed operation.

  7. Thermal Performance: The MOSFET is designed to have good thermal performance to aid in heat dissipation and reliability.


The FDD5614P MOSFET can be used in a wide range of applications, such as:

  1. Power Supplies: Utilized in switch-mode power supplies where efficiency and low power dissipation are crucial.

  2. Motor Control: Used in motor drive circuits for various types of motors including DC motors and brushless DC (BLDC) motors due to its fast switching speeds.

  3. Electronic Ballasts: Employed in fluorescent and HID (High-Intensity Discharge) lamp ballasts for efficient power control.

  4. Battery Management Systems: Integrated into battery charging and power management circuits in devices like power tools, electric vehicles, and battery packs where efficient power handling is necessary.

  5. DC-DC Converters: Utilized for efficient power conversion in various DC-DC converter topologies.

  6. Inverter Circuits: Used in signal inverters and power inverters for applications like solar power systems and uninterruptible power supplies (UPS).

  7. Automotive Electronics: Integrated into automotive electronic systems for power control, motor drives, and other applications.

When considering the FDD5614P for a specific application, it's essential to take into account voltage and current requirements, the need for fast switching speeds, and thermal considerations to ensure the device suits the intended purpose.

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