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STP90N4F3 - A High-Powered N-Channel MOSFET for Efficient Power Management

2023-05-19

With a maximum drain to source voltage of 40V, this MOSFET can handle continuous current up to 80A, making it suitable for various power management applications. This component is designed with metal oxide technology, boosting its efficiency and durability, all while maintaining a small form factor. Its maximum gate voltage of ±20V also allows for flexible and versatile usage. This article will delve deeper into the technical specifications of the STP90N4F3 and explore its potential applications in various electronic devices. 

Article: MOSFETs are integral components in electronic devices that require efficient power management. The STP90N4F3 MOSFET from STMicroelectronics is designed to offer high performance in power management by providing low on-state resistance (Rds On) and low gate charge (Qg), leading to less power loss, reduced heat generation, and better overall efficiency. One of the standout features of the STP90N4F3 is its high current carrying capability, with a maximum continuous drain current (Id) of 80A. This makes it suitable for a wide range of electronic devices such as motor controllers, power supplies, and inverters, to name a few. The MOSFET's low on-state resistance of 6.5 mOhm at 40A and 10V makes it easy for it to switch between a conducting and non-conducting state, helping to minimize power loss and reduce heat generation. 

Another important specification of the STP90N4F3 MOSFET is its maximum gate voltage of ±20V. This allows for a wide range of gate drive voltage options, making it flexible and versatile for various applications. Its gate threshold voltage (Vgs(th)) of 4V at 250µA means it can be easily driven by most logic devices and microcontrollers. The STP90N4F3 also boasts a maximum power dissipation of 110W at Tc, making it suitable for high-power applications. Its operating temperature range of -55°C to 175°C (TJ) makes it useful in harsh environments where temperature fluctuations can occur frequently. 

The STP90N4F3 comes in a TO-220AB package, a through-hole package that is easy to solder onto printed circuit boards. Its input capacitance (Ciss) of 2200pF at 25V and gate charge (Qg) of 54nC at 10V make it quick to charge and discharge during operation. 

STP90N4F3

The STP90N4F3 MOSFET can be applied to a wide range of electronic devices in our daily lives. For example, in electric cars, MOSFETs play a critical role in controlling the power flowing between the motor and battery. The STP90N4F3 can be used in motor controllers for electric cars, specifically in regulating the power output from the battery to the motor. It can also be used in power supplies, where its high current capability and low on-state resistance can help increase efficiency and reduce heat generation. 

In Summary, the STP90N4F3 MOSFET is a powerful N-Channel MOSFET that is part of the STripFET™ III series from STMicroelectronics. With a maximum drain to source voltage of 40V and continuous current up to 80A, it can be applied to various power management applications. Its metal oxide technology, low on-state resistance, and low gate charge make it an efficient component, reducing power loss and heat generation. The MOSFET's maximum gate voltage of ±20V and gate threshold voltage of 4V at 250µA also allow for versatile usage. Its use in specific applications such as motor controllers in electric cars and power supplies underscores the great potential of the STP90N4F3 in various electronic devices.

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