STP28NM50N
N-channel MOSFET transistors, 500V 21A, TO-220 package
Manufacturer： stm
series introduction
# Introduction to the STP28NM50N Product Series
## 1. Overview
The STP28NM50N product series is a remarkable line of N - channel power MOSFETs offered by STMicroelectronics. These MOSFETs are engineered to meet the diverse and demanding requirements of modern power electronics applications. With a focus on high - performance, reliability, and efficiency, the STP28NM50N series has become a popular choice among designers and engineers in various industries.
## 2. Key Features
### 2.1 Electrical Characteristics
- **Low On - Resistance (RDS(on))**: One of the standout features of the STP28NM50N series is its extremely low on - resistance. This characteristic is crucial as it minimizes power losses during conduction, leading to higher efficiency in power conversion circuits. For example, in a switching power supply, lower RDS(on) means less heat generation and less wasted energy, which can translate into cost savings and longer component lifetimes.
- **High Drain - Source Voltage Rating (VDS)**: The MOSFETs in this series are designed to handle high drain - source voltages. With a VDS rating of up to 500V, they are suitable for applications that require high - voltage switching, such as in industrial motor drives, high - power LED lighting systems, and some types of power inverters.
- **High Continuous Drain Current (ID)**: The STP28NM50N can handle relatively high continuous drain currents. This allows it to be used in applications where significant power needs to be transferred, like in battery charging circuits or high - power DC - DC converters.
### 2.2 Thermal Performance
- **Good Thermal Conductivity**: The package design of the STP28NM50N series is optimized for efficient heat dissipation. This is essential because power MOSFETs generate heat during operation, and effective heat removal is necessary to maintain their performance and reliability. The use of high - quality materials in the package ensures that heat can be transferred away from the die quickly, reducing the risk of overheating.
- **Thermal Resistance Ratings**: The series has well - defined thermal resistance values, which help designers accurately calculate the temperature rise of the MOSFET under different operating conditions. This enables them to design appropriate heat - sinking solutions to keep the device within its safe operating temperature range.
### 2.3 Switching Performance
- **Fast Switching Speeds**: The STP28NM50N MOSFETs offer fast turn - on and turn - off times. This is important in high - frequency switching applications, such as in high - frequency DC - DC converters or in some types of radio - frequency power amplifiers. Fast switching reduces switching losses and allows for higher - frequency operation, which can lead to smaller and more compact power electronics designs.
- **Low Gate Charge (Qg)**: A low gate charge means that less energy is required to drive the MOSFET's gate, resulting in lower drive power requirements. This is beneficial for reducing the overall power consumption of the control circuitry and can simplify the design of the gate driver circuit.
## 3. Package Options
The STP28NM50N series is available in a variety of package options, each with its own advantages.
- **TO - 220 Package**: This is a widely used through - hole package. It offers good thermal performance and is easy to mount on printed circuit boards (PCBs). The TO - 220 package is suitable for applications where high - power dissipation is required and where the PCB layout allows for through - hole components.
- **D2PAK Package**: The D2PAK is a surface - mount package that provides a good balance between thermal performance and board space utilization. It is more compact than the TO
Images for reference
TO-220-3, TO-220AB
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