FDA803D-EHT

The STMicroelectronics FDA803D-EHT is a high-performance N-channel MOSFET designed for a variety of applications, particularly in power management and switching. This device is well-suited for use in power supplies, motor drives, and other high-efficiency applications due to its low on-resistance, high-speed switching capabilities, and robust thermal performance.

### Key Specifications:

1. Type: N-channel MOSFET
- The FDA803D-EHT is an N-channel device, which means it conducts when a positive voltage is applied to the gate relative to the source.

2. Maximum Drain-Source Voltage (V_DS): 30V
- This parameter indicates the maximum voltage that can be applied between the drain and source terminals without causing breakdown. The FDA803D-EHT is designed to handle moderate voltages, making it suitable for various applications.

3. Continuous Drain Current (I_D): 80A
- The maximum continuous current that the MOSFET can handle under specified conditions. This high current rating allows the device to be used in demanding applications where significant power is required.

4. Pulsed Drain Current (I_D,pulse): 320A
- This value represents the maximum current the MOSFET can handle in short pulses. It is particularly important for applications that require high peak currents, such as inrush current during startup.

5. Gate-Source Voltage (V_GS): ±20V
- This parameter defines the maximum voltage that can be applied between the gate and source terminals. It is crucial for ensuring proper operation and preventing damage to the device.

6. On-Resistance (R_DS(on)): 0.008Ω (at V_GS = 10V)
- The on-resistance is a critical parameter that affects the efficiency of the MOSFET. A lower R_DS(on) value indicates less power loss during operation, which is vital for high-efficiency designs.

7. Total Gate Charge (Q_g): 40nC (at V_GS = 10V)
- This parameter indicates the total charge required to turn the MOSFET on and off. It affects the switching speed and efficiency of the device, with lower values allowing for faster switching.

8. Thermal Resistance, Junction-to-Case (RθJC): 1.5°C/W
- This value indicates how effectively the device can dissipate heat. A lower thermal resistance means better heat management, which is crucial for maintaining performance and reliability.

9. Operating Temperature Range: -55°C to +150°C
- This range specifies the temperatures within which the MOSFET can operate reliably. It is important for applications in harsh environments, ensuring that the device can function under extreme conditions.

10. Package Type: DPAK
- The DPAK package is a popular choice for power MOSFETs due to its excellent thermal performance and ease of mounting on heatsinks. This package allows for effective heat dissipation, which is essential for high-power applications.

### Applications:

The FDA803D-EHT is suitable for a wide range of applications, including:

- Switching Power Supplies: Its high voltage and current ratings make it ideal for use in power supply circuits, where efficient switching is crucial for performance and reliability.
- Motor Drives: The device can be used in motor control applications, providing efficient switching and control of motor currents, which is essential for applications such as electric vehicles and industrial automation.
- DC-DC Converters: The low on-resistance and high-speed switching capabilities make it suitable for various DC-DC converter topologies, enhancing efficiency in power conversion.
- Lighting Control: The FDA803D-EHT can be used in LED drivers and other lighting control applications, where efficient power management is essential for energy savings and performance.

### Conclusion:

The STMicroelectronics FDA803D-EHT N-channel MOSFET is a robust and efficient device that offers excellent performance for a variety of high-power applications. With its high voltage and current ratings, low on-resistance, and wide operating temperature range, it is an ideal choice for engineers looking to design reliable and efficient power management solutions. Its versatility and performance characteristics make it a valuable component in modern electronic designs, contributing to improved efficiency and reliability in power systems.