Product introduction：
1. MI8431-VB Product Introduction
MI8431-VB is a **single P-channel MOSFET**, using **DFN8 (3x3) package**, designed for high-efficiency power management and switching applications. Its drain-source voltage (V_DS) is **-30V**, the gate-source voltage (V_GS) range is **±20V**, and the turn-on threshold voltage (V_th) is **-2.5V**. The on-resistance (R_DS(ON)) at a gate voltage of 4.5V is **18mΩ**, which decreases to **11mΩ** at 10V, ensuring excellent conductivity and low power consumption. The maximum drain current (I_D) can reach **-45A**, and the use of **trench technology** makes it excellent in current handling and switching speed. MI8431-VB is widely used in power management, switching power supplies, and various consumer electronic products, and is suitable for use in high-efficiency and miniaturized design occasions.
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Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| DFN8(3X3) |
Single-P |
-30V |
|
-2.5V |
-45A |
|
|
11mΩ |
Trench |
| VB Package |
Configuration |
VCE |
VGE |
VGEth(V) |
VCEsat15V |
ICE |
Technology |
| DFN8(3X3) |
Single-P |
|
|
|
|
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds18 |
Technology |
| DFN8(3X3) |
Single-P |
-30V |
|
-2.5V |
-45A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| DFN8(3X3) |
Single-P |
-30V |
|
-2.5V |
-45A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| DFN8(3X3) |
Single-P |
|
|
|
|
|
|
|
2. MI8431-VB MOSFET Detailed Parameter Description
| **Parameter** | **Value** | **Description** |
|------------------------|----------------------------------|-------------------------------------------|
| **Package Type** | DFN8 (3x3) | Compact design, suitable for high-density circuits and excellent thermal management|
| **MOSFET Type** | Single P-Channel | Suitable for various power control and switching applications|
| **Drain-Source Voltage (V_DS)** | -30V | Suitable for applications in negative voltage environments|
| **Gate-Source Voltage (V_GS)** | ±20V | Supported control voltage range, enhanced application flexibility|
| **Turning Voltage (V_th)** | -2.5V | Threshold voltage for device turn-on|
| **On-resistance (R_DS(ON))** | 18mΩ @ V_GS=4.5V | On-resistance at lower gate voltage|
| **On-resistance (R_DS(ON))** | 11mΩ @ V_GS=10V | On-resistance at higher gate voltage|
| **Maximum drain current (I_D)** | -45A | High current carrying capability for high power applications|
| **Technology** | Trench | Provides lower on-resistance and switching losses|
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Domain and module applications：
III. Application fields and module examples of MI8431-VB
1. **Switching Power Supply (SMPS)**
MI8431-VB is widely used in high-efficiency switching power supply modules. Through its single P-channel characteristics, it can achieve efficient power conversion and control and reduce system energy consumption.
2. **Battery Management System (BMS)**
In the battery management system, this MOSFET is used for battery charge and discharge control, which can effectively protect the battery pack and improve charging efficiency.
3. **DC-DC Converter**
This MOSFET is suitable for various DC-DC converters, especially in load switching occasions, such as buck and boost circuits, to ensure stable power output.
4. **Consumer Electronics**
MI8431-VB provides power switching and management functions in consumer electronics such as smartphones and tablets to improve device energy efficiency and reduce heat generation.
5. **Industrial Automation Equipment**
In industrial control and automation systems, MI8431-VB is used in power management modules to achieve efficient control of loads and adapt to harsh working environments.
6. **Electric Vehicle Charging Module**
This MOSFET can also be used in electric vehicle charging modules to handle high current loads and ensure system reliability and efficiency.
Through the above application areas, MI8431-VB MOSFET demonstrates its wide applicability in power management and switch control, meeting the high requirements of modern electronic equipment for energy efficiency and reliability.
* 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
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