Overview
The STL3NK40 is an N-channel Power MOSFET developed by STMicroelectronics, utilizing the advanced SuperMESH™ technology. This device is part of ST's enhanced strip-based PowerMESH™ layout, offering significant improvements in performance and reliability. The STL3NK40 is designed for high-voltage applications, featuring a drain-source voltage (VDS) of 400 V, a typical on-resistance (RDS(on)) of 4.5 Ω, and a continuous drain current (ID) of 0.43 A at 25°C. This MOSFET is optimized for switching applications, providing superior dv/dt capability, minimized gate charge, and very low intrinsic capacitances.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-Source Voltage (VDS) | 400 | V |
| Gate-Source Voltage (VGS) | ±20 | V |
| Continuous Drain Current (ID) at 25°C | 0.43 | A |
| Continuous Drain Current (ID) at 100°C | 0.27 | A |
| Pulsed Drain Current (IDM) | 1.72 | A |
| Total Dissipation at 25°C | 2.5 W (derating factor: 0.02 W/°C) | W |
| Thermal Resistance Junction-Foot (Rthj-f) | 1.66 °C/W | °C/W |
| Thermal Resistance Junction-PCB (Rthj-pcb) | 50 °C/W | °C/W |
| Static Drain-Source On-Resistance (RDS(on)) | 4.5 Ω (typ.) | Ω |
| Gate Threshold Voltage (VGS(th)) | 0.8 - 2 V | V |
| Input Capacitance (Ciss) | 128 pF | pF |
| Output Capacitance (Coss) | 16 pF | pF |
| Reverse Transfer Capacitance (Crss) | 4 pF | pF |
Key Features
- Extremely high dv/dt capability, ensuring optimal performance in demanding applications.
- Improved ESD capability for enhanced reliability.
- 100% avalanche rated, providing robustness against transient conditions.
- Minimized gate charge, reducing switching losses.
- Very low intrinsic capacitances, improving high-frequency performance.
- Very good manufacturing repeatability, ensuring consistent performance across devices.
Applications
The STL3NK40 is primarily designed for switching applications, including but not limited to:
- Power supplies and DC-DC converters.
- Motor control and drive systems.
- High-voltage industrial and automotive systems.
- Power management in consumer and industrial electronics.
Q & A
- What is the maximum drain-source voltage (VDS) of the STL3NK40?
The maximum drain-source voltage (VDS) is 400 V.
- What is the typical on-resistance (RDS(on)) of the STL3NK40?
The typical on-resistance (RDS(on)) is 4.5 Ω.
- What is the continuous drain current (ID) at 25°C for the STL3NK40?
The continuous drain current (ID) at 25°C is 0.43 A.
- What is the thermal resistance junction-foot (Rthj-f) of the STL3NK40?
The thermal resistance junction-foot (Rthj-f) is 1.66 °C/W.
- Does the STL3NK40 have high dv/dt capability?
Yes, the STL3NK40 has extremely high dv/dt capability, making it suitable for demanding applications.
- Is the STL3NK40 100% avalanche rated?
Yes, the STL3NK40 is 100% avalanche rated, providing robustness against transient conditions.
- What is the gate threshold voltage (VGS(th)) range for the STL3NK40?
The gate threshold voltage (VGS(th)) range is from 0.8 to 2 V.
- What are the typical applications for the STL3NK40?
The STL3NK40 is typically used in switching applications such as power supplies, motor control, and high-voltage industrial and automotive systems.
- What package type is the STL3NK40 available in?
The STL3NK40 is available in the PowerFLAT™ (5x5) package.
- Does the STL3NK40 have improved ESD capability?
Yes, the STL3NK40 has improved ESD capability for enhanced reliability.
