Infineon IRF3415STRLPBF Power MOSFET Datasheet, Application Circuit, and Pinout Guide
The Infineon IRF3415STRLPBF is a robust N-channel power MOSFET that has established itself as a reliable workhorse in power conversion and management applications. Engineered using Infineon's advanced proprietary process technology, this component is designed to deliver high efficiency, fast switching speeds, and exceptional durability. This article provides a detailed overview of its datasheet specifications, a typical application circuit, and its pinout configuration.
Key Datasheet Specifications and Features
The IRF3415STRLPBF is characterized by its low on-state resistance (RDS(on)) of just 42 mΩ (max) at VGS = 10 V. This crucial parameter is a primary contributor to reduced conduction losses, leading to higher overall system efficiency and less heat generation. The device is rated for a drain-to-source voltage (VDS) of 150 V and a continuous drain current (ID) of 43 A, making it well-suited for a wide range of medium-to-high power applications.
Other notable features from the datasheet include:
Fast Switching Performance: Optimized for high-speed operation, which is essential for switch-mode power supplies (SMPS).
Avalanche Rated: The device is engineered to withstand high-energy pulses in the avalanche mode, enhancing its robustness and reliability in rugged environments.
Improved dv/dt Capability: Offers greater immunity against unwanted switch-on from voltage transients.
Low Gate Charge (Qg): Typical total gate charge of 78 nC simplifies drive requirements and minimizes driving losses.
Typical Application Circuit: A Simplified SMPS Example
One of the most common applications for the IRF3415STRLPBF is in the primary side of switch-mode power supplies (SMPS). Below is a simplified schematic of a forward converter topology, a classic use case for this MOSFET.
```
[Simplified Circuit Diagram]
+---------------+
| DC Input | +------+
| (e.g., 48V) +----+ |
+---------------+ | |
| C1 |
+---+ +---+
| | | |
| +------+ |
| |
GND o------------+ |
Gate Drive
|
o-----+-----> To PWM Controller
| |
R1 DZ1 | R2
+---/\/\/---+----|>|----+---/\/\/---+
| | | |
| +----| |---+ |
| | | |
GND o---------------------+-----------------+
|
D1 T1 |
+----//<|--+ 
