Product introduction：
SI4404DY-T1-E3-VB Product Introduction
**SI4404DY-T1-E3-VB** is a **single N-channel MOSFET** in **SOP8** package, suitable for high-efficiency power management and power control applications. The **maximum drain-source voltage (VDS)** of this MOSFET is **30V**, providing **high current carrying capacity (ID)**, with a maximum current of **18A**, making it suitable for high load and high power current applications. **Trench technology** is used, with low on-resistance, **RDS(ON) = 5mΩ @ VGS = 4.5V** and **RDS(ON) = 4mΩ @ VGS = 10V**, reducing power loss and improving switching efficiency.
The gate-source turn-on voltage of this MOSFET is **Vth = 1.7V**, which allows it to operate at a lower gate drive voltage, making it compatible with low-voltage circuits and widely used in power management, load switching, electric drive and various high-efficiency power conversion applications.
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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 |
30V |
|
1.7V |
18A |
|
|
4mΩ |
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 |
30V |
|
1.7V |
18A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| SOP8 |
Single-N |
30V |
|
1.7V |
18A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| SOP8 |
Single-N |
|
|
|
|
|
|
|
SI4404DY-T1-E3-VB Detailed parameter description
- **Package type**: SOP8
- **Configuration**: Single N-channel
- **Maximum drain-source voltage (VDS)**: 30V
- **Gate-source voltage (VGS)**: ±20V
- **Gate-source turn-on voltage (Vth)**: 1.7V
- **On-resistance (RDS(ON))**:
- **5mΩ** @ VGS = 4.5V
- **4mΩ** @ VGS = 10V
- **Maximum drain current (ID)**: 18A
- **Technology**: Trench technology
Domain and module applications：
SI4404DY-T1-E3-VB Applications and Modules
1. **Power Management Systems**:
**SI4404DY-T1-E3-VB**'s low on-resistance and high current handling capability make it an ideal choice for **power management systems**. It can be used in **DC-DC converters, linear voltage regulators, and high-efficiency power modules** to help improve system conversion efficiency and reduce energy loss.
- **Application Examples**: In **power adapters, battery chargers, power conversion equipment** and other applications, MOSFETs are used as power switching components to achieve low loss, fast switching, and optimize energy transfer.
2. **Electric Drive and Control Systems**:
In **electric drive systems**, especially in applications such as power tools, electric vehicles, and robots, MOSFETs, with their high current carrying capacity and low on-resistance, can provide efficient switching and current regulation for **motor control circuits**.
- **Application examples**: In **electric vehicle drive systems, industrial power tools, and intelligent robots**, MOSFETs can be used to drive and regulate the speed of motors, effectively improving the efficiency and response speed of electric drive systems.
3. **Load switch control**:
**SI4404DY-T1-E3-VB** can be used for **load switch control** as a power switch, providing precise current management and fast response. The low on-resistance and high switching speed of this MOSFET ensure low-power, high-efficiency load switching operations.
- **Application examples**: In **LED lighting, power tools, battery management systems** and other fields, MOSFETs can be used to accurately control the connection and disconnection between loads and power supplies, improving the stability and service life of the system.
4. **Battery management system (BMS)**:
In **battery management systems (BMS)**, MOSFETs can effectively control the charging and discharging process of batteries, ensure that the batteries operate within a safe range, and reduce the power consumption of the batteries.
- **Application examples**: In applications such as **electric vehicle battery management systems and energy storage devices**, MOSFETs can ensure efficient and stable battery charging and discharging processes, while controlling the current flow and voltage stability of the battery.
5. **Solar inverters and power conversion**:
**SI4404DY-T1-E3-VB**'s low on-resistance and fast response characteristics make it suitable for **solar inverters** and **power conversion systems**. In solar power generation systems, MOSFETs can be used to efficiently convert direct current (DC) to alternating current (AC), ensuring efficient and stable operation of the system.
- **Application examples**: In **solar power generation systems, UPS power supplies, and industrial inverters**, MOSFETs are used for power conversion and management to optimize energy efficiency.
* 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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