Overview
The STF9NK90Z is a high-voltage N-channel Power MOSFET from STMicroelectronics, part of the SuperMESH™ series. This device is optimized from ST's well-established strip-based PowerMESH™ layout, offering enhanced performance and reliability. The STF9NK90Z is designed for high-voltage applications, featuring a drain-source voltage (VDS) of 900 V, a low on-resistance (RDS(on)) of 1.3 Ω, and a continuous drain current (ID) of 8 A. It is available in the TO-220FP package, making it suitable for a variety of power management and switching applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-Source Voltage (VDS) | 900 | V |
| Gate-Source Voltage (VGS) | ±30 | V |
| Continuous Drain Current (ID) at TC = 25 °C | 8 | A |
| Continuous Drain Current (ID) at TC = 100 °C | 5 | A |
| Pulsed Drain Current (IDM) | 32 | A |
| Total Dissipation at TC = 25 °C | 40 | W |
| Static Drain-Source On Resistance (RDS(on)) | 1.3 | Ω |
| Gate Threshold Voltage (VGS(th)) | 3 - 4.5 | V |
| Turn-On Delay Time (td(on)) | 22 ns | ns |
| Turn-Off Delay Time (td(off)) | 55 ns | ns |
Key Features
- Extremely high dv/dt capability, making it suitable for demanding applications.
- 100% avalanche tested to ensure reliability under extreme conditions.
- Minimized gate charge for efficient switching.
- Built-in back-to-back Zener diodes to enhance ESD capability and protect against voltage transients.
- Low on-resistance (RDS(on)) of 1.3 Ω for reduced power losses.
- Available in the TO-220FP package, offering good thermal dissipation and ease of use.
Applications
The STF9NK90Z is designed for various high-voltage switching applications, including:
- Power supplies and DC-DC converters.
- Motor control and drive systems.
- High-voltage industrial and automotive systems.
- Switch-mode power supplies and inverters.
Q & A
- What is the maximum drain-source voltage (VDS) of the STF9NK90Z?
The maximum drain-source voltage (VDS) is 900 V.
- What is the continuous drain current (ID) at 25 °C for the STF9NK90Z?
The continuous drain current (ID) at 25 °C is 8 A.
- What is the typical on-resistance (RDS(on)) of the STF9NK90Z?
The typical on-resistance (RDS(on)) is 1.3 Ω.
- What is the purpose of the built-in Zener diodes in the STF9NK90Z?
The built-in Zener diodes enhance ESD capability and protect against voltage transients.
- In which package is the STF9NK90Z available?
The STF9NK90Z is available in the TO-220FP package.
- What are some typical applications for the STF9NK90Z?
Typical applications include power supplies, motor control systems, high-voltage industrial and automotive systems, and switch-mode power supplies.
- What is the maximum gate-source voltage (VGS) for the STF9NK90Z?
The maximum gate-source voltage (VGS) is ±30 V.
- What is the turn-on delay time (td(on)) for the STF9NK90Z?
The turn-on delay time (td(on)) is typically 22 ns.
- What is the total dissipation at 25 °C for the STF9NK90Z?
The total dissipation at 25 °C is 40 W.
- Is the STF9NK90Z 100% avalanche tested?
Yes, the STF9NK90Z is 100% avalanche tested.
