Overview
The STB85NF55LT4 is a high-performance N-channel Power MOSFET developed by STMicroelectronics. This device is part of the STripFET™ II series, known for its advanced 'single feature size' strip-based process. This technology enhances the transistor's packing density, resulting in low on-resistance, rugged avalanche characteristics, and improved manufacturing reproducibility. The STB85NF55LT4 is available in the D²PAK package and is designed for high-current switching applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-Source Voltage (VDS) | 55 | V |
| Gate-Source Voltage (VGS) | ±15 | V |
| Continuous Drain Current (ID) at TC = 25 °C | 80 | A |
| Pulsed Drain Current (IDM) | 320 | A |
| Static Drain-Source On Resistance (RDS(on)) at VGS = 10 V, ID = 40 A | 0.0060 - 0.008 | Ω |
| Gate Threshold Voltage (VGS(th)) | 1 - 2.5 | V |
| Operating Junction Temperature (TJ) | -55 to 175 | °C |
| Thermal Resistance Junction-Case (Rthj-case) | 0.5 | °C/W |
| Thermal Resistance Junction-Ambient (Rthj-amb) | 62.5 | °C/W |
Key Features
- Low threshold drive for easy gate control.
- High packing density resulting in low on-resistance.
- Rugged avalanche characteristics for reliability in harsh conditions.
- Less critical alignment steps for improved manufacturing reproducibility.
- Available in D²PAK package for efficient heat dissipation.
- ECOPACK® compliant for environmental sustainability.
Applications
The STB85NF55LT4 is designed for various high-current switching applications, including:
- Power supplies and DC-DC converters.
- Motor control and drive systems.
- Industrial automation and control systems.
- Automotive systems requiring high reliability and performance.
Q & A
- What is the maximum drain-source voltage of the STB85NF55LT4?
The maximum drain-source voltage (VDS) is 55 V. - What is the continuous drain current rating at 25 °C?
The continuous drain current (ID) at 25 °C is 80 A. - What is the typical on-resistance of the STB85NF55LT4?
The typical static drain-source on resistance (RDS(on)) at VGS = 10 V and ID = 40 A is 0.0060 - 0.008 Ω. - What is the gate threshold voltage range?
The gate threshold voltage (VGS(th)) range is 1 to 2.5 V. - What are the thermal resistance values for junction-case and junction-ambient?
The thermal resistance junction-case (Rthj-case) is 0.5 °C/W, and the thermal resistance junction-ambient (Rthj-amb) is 62.5 °C/W. - What package is the STB85NF55LT4 available in?
The STB85NF55LT4 is available in the D²PAK package. - Is the STB85NF55LT4 environmentally compliant?
Yes, the STB85NF55LT4 is ECOPACK® compliant, meeting environmental sustainability standards. - What are some typical applications for the STB85NF55LT4?
Typical applications include power supplies, DC-DC converters, motor control systems, industrial automation, and automotive systems. - What is the maximum operating junction temperature?
The maximum operating junction temperature (TJ) is 175 °C. - What is the maximum lead temperature for soldering?
The maximum lead temperature for soldering is 300 °C.
