STD17NF25

STMicroelectronics STD17NF25 Overview

The STD17NF25 is a power MOSFET manufactured by STMicroelectronics, designed for high efficiency and versatility in power applications. This device is part of STMicroelectronics' N-channel MOSFET family, offering a robust performance in both low and high power circuits.

### Key Features

* N-Channel Type: The STD17NF25 is an N-channel MOSFET, which is commonly used in switching and amplification applications where higher current and efficiency are required.
* Low Gate Charge: The MOSFET features a low gate charge, ensuring fast switching performance and efficiency in circuits.
* Low Rds(on): The MOSFET offers low on-state resistance, reducing conduction losses and improving overall power conversion efficiency.
* High Drain-Source Voltage: With a high voltage rating, this MOSFET is well-suited for applications where the system operates at elevated voltages, providing reliable performance in high-voltage circuits.

### Electrical Characteristics

* Drain-Source Voltage (Vds): The STD17NF25 has a maximum drain-source voltage of 250V, making it suitable for medium voltage applications.
* Continuous Drain Current (Id): The device supports a continuous drain current of up to 17A at 25°C, making it effective for handling substantial current loads in power electronics.
* Pulsed Drain Current (Idm): The pulsed drain current rating of 68A offers flexibility in handling short-term high-current conditions without failure.
* Gate-Source Voltage (Vgs): The maximum gate-source voltage is 20V, allowing for compatibility with standard drive circuits.

### Thermal Characteristics

* Junction-to-Case Thermal Resistance (RthJC): The device has a thermal resistance of 1.8°C/W, ensuring efficient heat dissipation during operation.
* Junction-to-Ambient Thermal Resistance (RthJA): With a junction-to-ambient thermal resistance of 62.5°C/W in a PCB-mounted condition, the MOSFET can be used in a variety of cooling setups to prevent overheating.
* Operating Junction Temperature: The STD17NF25 can operate within a junction temperature range from -55°C to +150°C, offering high thermal stability for demanding environments.

### Performance in Switching Applications

The STD17NF25 excels in switching applications due to its fast switching speed and low on-resistance, making it suitable for both DC-DC converters and motor control circuits. The reduced gate charge allows for lower switching losses, improving overall system efficiency.

### Package Type

The STD17NF25 is available in the TO-220 package, providing good thermal dissipation and ease of mounting onto a heatsink or circuit board. This package type is ideal for applications where space and thermal management are critical.

### Applications

* Power Supplies: The MOSFET is commonly used in power supply circuits, including AC-DC converters and DC-DC converters.
* Motor Drives: It's also utilized in motor drive circuits, particularly for controlling high currents in industrial motor applications.
* Switching Regulators: Ideal for use in switching regulators where efficiency and reliability are important.
* Lighting: Used in energy-efficient lighting systems like LED drivers for precise control of voltage and current.

### Specifications

* Drain-Source Voltage (Vds): 250V
* Continuous Drain Current (Id): 17A (at 25°C)
* Pulsed Drain Current (Idm): 68A
* Gate-Source Voltage (Vgs): ±20V
* Gate Threshold Voltage (Vgs(th)): 1V to 3V
* On-Resistance (Rds(on)): 0.014Ω at Vgs = 10V
* Total Gate Charge (Qg): 40nC at Vds = 250V
* Maximum Junction Temperature: 150°C
* Package Type: TO-220

### Conclusion

The STD17NF25 from STMicroelectronics is a high-performance MOSFET with a robust feature set, suitable for use in various power electronic applications. Its combination of low Rds(on), high voltage tolerance, and efficient thermal characteristics make it ideal for modern power supplies, motor control systems, and energy-efficient lighting solutions.