Product introduction：
SI4482DY-VB MOSFET Product Introduction
SI4482DY-VB is a unipolar N-type MOSFET in SOP8 package with efficient power control capability, especially suitable for high voltage applications. The maximum drain-source voltage (VDS) of this MOSFET is 100V, which provides a higher operating voltage and is suitable for medium and high voltage power management applications. Its gate threshold voltage (Vth) is 1.8V, and the relatively low turn-on voltage allows it to start conducting at a lower gate voltage, thereby improving switching speed and responsiveness.
SI4482DY-VB uses Trench technology and has a low on-resistance (RDS(ON)), which is 33mΩ at VGS = 4.5V and 32mΩ at VGS = 10V, which can effectively reduce power loss and enhance thermal efficiency. This MOSFET has a maximum drain current (ID) of 9A and is suitable for medium current load driving. It is widely used in fields that require efficient and low-loss power management, such as power conversion, motor drive, load switching, etc. It not only improves system efficiency, but also helps reduce the overall system heat output and increase system reliability and durability.
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Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| SOP8 |
Single-N |
100V |
|
1.8V |
9A |
|
|
32mΩ |
Trench |
| VB Package |
Configuration |
VCE |
VGE |
VGEth(V) |
VCEsat15V |
ICE |
Technology |
| SOP8 |
Single-N |
|
|
|
|
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds18 |
Technology |
| SOP8 |
Single-N |
100V |
|
1.8V |
9A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| SOP8 |
Single-N |
100V |
|
1.8V |
9A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| SOP8 |
Single-N |
|
|
|
|
|
|
|
SI4482DY-VB MOSFET detailed parameter description
| Parameter | Description |
|-------------------|------------------------------------------------------------|
| **Model** | SI4482DY-VB |
| **Package** | SOP8 |
| **Configuration** | Unipolar N-type MOSFET |
| **VDS (maximum drain-source voltage)** | 100V |
| **VGS (maximum gate-source voltage)** | ±20V |
| **Vth (gate threshold voltage)** | 1.8V |
| **RDS(ON)** | 33mΩ (VGS = 4.5V)
32mΩ (VGS = 10V) |
| **ID (maximum drain current)** | 9A |
| **Technology** | Trench |
Domain and module applications：
SI4482DY-VB MOSFET Applications and Modules
1. **Power Management and Switching Power Supplies**
SI4482DY-VB is widely used in power management systems, especially in switching power supplies (SMPS). With its high VDS (100V) and low RDS(ON), it can effectively control the flow of power current, optimize power efficiency, and reduce power loss. In devices such as DC-DC converters, AC-DC power adapters, and UPS (uninterruptible power supply systems), SI4482DY-VB can significantly improve conversion efficiency and system reliability.
2. **Motor Driver Circuits**
Due to its low on-resistance and high current carrying capacity, SI4482DY-VB is an ideal choice for driving electric motors, fans, pumps, and other motor equipment. It can provide precise current control and support efficient switching, and is suitable for motor drive systems such as power tools, electric vehicles, and power windows to ensure smooth operation and high efficiency.
3. **Load Switching and Protection**
SI4482DY-VB is suitable for load switching and overcurrent protection circuits. It can be used as a load switching element to help control the connection between the power supply and the load, and is suitable for modules such as battery management systems, LED drivers, and power converters. In these applications, SI4482DY-VB not only provides stable current control, but also reduces the power loss of the system through its low RDS(ON) and improves overall performance.
4. **Battery Management Systems (BMS)**
In battery management systems, SI4482DY-VB MOSFET is often used for functions such as battery charge and discharge control, battery balancing, and overvoltage protection. Its low on-resistance minimizes power loss during the charge and discharge process, thereby improving battery efficiency and life. Especially in lithium batteries and other high-performance battery management systems, SI4482DY-VB can help achieve more efficient battery management.
5. **Automotive Electronics**
This MOSFET is also suitable for automotive power systems, especially in battery management, charging control and electric motor drive in electric and hybrid vehicles. Due to its high voltage withstand capability (100V) and excellent current control characteristics, SI4482DY-VB can be used in automotive battery management systems (BMS), electronic stability programs (ESP) and other electric drive modules.
6. **LED Drivers**
SI4482DY-VB is widely used as a power switch in efficient LED driver circuits. In LED lighting systems that require a stable current supply, it can provide precise current regulation and reduce energy loss to ensure efficient and reliable LED operation. This MOSFET can be used in a variety of lighting designs, including high-power lamps and outdoor lighting.
* Please note: the above is only an example application scenario, the specific application depends on the requirements and conditions of the system design. When using this device, consult its data sheet for detailed technical specifications and features
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