Product introduction：
**N4421-VB Product Introduction**
N4421-VB is a high-performance **single P-channel MOSFET**, which adopts **DFN8(3X2)-B package**, providing excellent space efficiency and thermal management capabilities for modern electronic designs. The device has a **drain-source voltage (VDS) of -30V**, which is suitable for low-voltage applications, especially in reverse power management and load driving occasions. The **gate voltage (VGS) range of N4421-VB is ±20V**, providing flexible drive options. Its **threshold voltage (Vth) is -1.5V**, which means that efficient switching can be achieved even at lower gate voltages, improving switching speed and reducing power consumption. The on-resistance (RDS(ON)) of this MOSFET is 42mΩ** at **VGS=4.5V, and the on-resistance is 30mΩ** at **VGS=10V, ensuring low heat generation under high load conditions. The N4421-VB has a **maximum drain current (ID) of -5.1A**, making it suitable for use in a variety of applications. It uses **Trench technology** to optimize electrical performance, making it an ideal choice for power management and switching applications.
---
File download
Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| DFN8(3X2)-B |
Single-P |
-30V |
|
-1.5V |
-5.1A |
|
|
30mΩ |
Trench |
| VB Package |
Configuration |
VCE |
VGE |
VGEth(V) |
VCEsat15V |
ICE |
Technology |
| DFN8(3X2)-B |
Single-P |
|
|
|
|
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds18 |
Technology |
| DFN8(3X2)-B |
Single-P |
-30V |
|
-1.5V |
-5.1A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| DFN8(3X2)-B |
Single-P |
-30V |
|
-1.5V |
-5.1A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| DFN8(3X2)-B |
Single-P |
|
|
|
|
|
|
|
**N4421-VB Parameter Description**
| **Parameter** | **Value** | **Description** |
|--------------------------|-------------------------|----------------------------------------|
| **Package Type** | DFN8(3X2)-B | Compact surface mount package, suitable for circuit design with limited space|
| **Channel Type** | Single P-channel (Single-P) | Suitable for common reverse power management and load driving|
| **VDS (drain-source voltage)** | -30V | Suitable for low voltage power supply applications|
| **VGS (gate voltage)** | ±20V | Provides flexible gate drive options|
| **Vth (threshold voltage)** | -1.5V | Minimum gate voltage for MOSFET to turn on|
| **RDS(ON)** | 42mΩ @ VGS=4.5V | On-resistance at 4.5V gate voltage|
| **RDS(ON)** | 30mΩ @ VGS=10V | On-resistance at 10V gate voltage|
| **ID (drain current)** | -5.1A | Maximum drain current|
| **Technology** | Trench | Trench technology optimizes conduction performance and power loss|
---
Domain and module applications：
**Applications and Applicable Modules**
1. **Reverse Power Management**
The N4421-VB is widely used in **reverse power management** systems, especially where efficient power conversion and control are required. Its low on-resistance ensures high system efficiency and reduces energy loss, making it ideal for portable electronic devices and mobile applications.
2. **Motor Control**
This MOSFET can be used in **motor drive circuits**, especially in **brushless DC motor (BLDC)** applications. The high drain current capability (-5.1A) of the N4421-VB can meet the high current requirements during motor startup and operation, and is suitable for a variety of industrial and consumer motor control systems.
3. **LED Drive**
The N4421-VB is also widely used in **LED drive** circuits, which can efficiently drive LED light sources and is suitable for lighting products, displays, and other lighting solutions. Its low heat generation and efficient control can improve the performance and life of LEDs.
4. **Audio and Signal Amplifiers**
In **audio amplifiers** and **signal amplifiers**, the N4421-VB can be used as a switching element to optimize signal transmission and improve system efficiency. Its fast switching characteristics enable it to handle high-frequency signals, meeting the needs of modern audio equipment.
5. **Smart Home and Internet of Things**
The device is also widely used in **smart home** and **Internet of Things (IoT) devices**, especially for products such as **smart sockets** and **lighting control**. Its compact DFN package enables it to operate efficiently in space-constrained environments, meeting the design needs of modern electronic products.
Through these application examples, the N4421-VB demonstrates its wide applicability in a variety of electronic devices, especially in high-efficiency power management and load drive applications.
* 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
Technical support：
* If you have any questions about the product, please fill out the form to submit, we will reply you within 24 hours
Download now
中文
English
Back to previous page-B.png)
