**Model**: SI9428DY-T1-E3-VB **Package**: SOP8 **Configuration**: Unipolar N-channel MOSFET **Maximum drain voltage (V_DS)**: 30V **Gate-source voltage (V_GS)**: ±20V **Threshold voltage (V_th)**: 1.7V **On-resistance (R_DS(on))**: - 11mΩ@V_GS=4.5V - 8mΩ@V_GS=10V **Maximum drain current (I_D)**: 13A **Technology**: Trench technology
**Overview**: SI9428DY-T1-E3-VB is a high-performance N-channel MOSFET in SOP8 package with low on-resistance and high current carrying capability. The device can provide a maximum drain voltage of 30V and can support a drain current of 13A, suitable for a variety of high-efficiency power management and switching circuit applications. Its low R_DS(on) characteristic enables efficient current control at low gate-source voltages, making it suitable for use as a key component in circuits such as DC-DC converters, switching power supplies, and load switches. The high performance of MOSFET enables it to perform well in low-voltage, high-efficiency power conversion.
1. **Package type**: SOP8 (Small Outline Package, 8-pin package) - Small package, suitable for space-constrained applications, with good heat dissipation performance.
2. **Configuration**: Unipolar N-channel - The MOSFET is an N-channel configuration, suitable for low-side switching applications.
3. **Maximum drain voltage (V_DS)**: 30V - The maximum drain voltage is 30V, suitable for low-voltage drive applications, such as power management and signal switching.
4. **Gate-source voltage (V_GS)**: ±20V - The MOSFET can support a maximum gate-source voltage of ±20V, suitable for high-voltage drive applications.
5. **Threshold voltage (V_th)**: 1.7V - The threshold voltage is 1.7V, which means that when the gate-source voltage exceeds 1.7V, the MOSFET starts to turn on.
6. **On-resistance (R_DS(on))**: - **11mΩ @ V_GS=4.5V** - **8mΩ @ V_GS=10V** - MOSFET has a very low on-resistance, which makes it have low power loss when it is turned on, improving system efficiency.
7. **Maximum drain current (I_D)**: 13A - The maximum drain current is 13A, which can carry a large load current and is suitable for high-power power supply and power control applications.
8. **Technology**: Trench technology - Using Trench process, it provides lower on-resistance, improves efficiency and thermal management performance, and supports high-speed switching operation.
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Domain and module applications：
Applications and module examples
1. **DC-DC converter**: - SI9428DY-T1-E3-VB is suitable for DC-DC converters as a low-side switch. Its low R_DS(on) characteristics and high maximum drain current enable it to play an important role in efficient voltage conversion, reducing power loss and improving conversion efficiency.
2. **Power management system**: - Due to its low on-resistance and high current carrying capacity, SI9428DY-T1-E3-VB is particularly suitable for use as a key switching component in power management systems. For example, in a battery management system (BMS), this MOSFET can be used to regulate current and voltage to ensure the stability and efficiency of battery charging.
3. **Switching power supply (SMPS)**: - In the switching power supply module, SI9428DY-T1-E3-VB has good switching characteristics and low on-resistance, which can help reduce power loss and enhance the overall efficiency of the system. Especially in low voltage and high frequency operation environments, this MOSFET is able to provide stable switching performance.
4. **Load Switch**: - As an efficient load switch, SI9428DY-T1-E3-VB is suitable for applications that require fast and efficient control of load current. Due to its low on-resistance, it can significantly reduce power loss during load switching and extend the service life of the system.
5. **Consumer Electronics and Portable Devices**: - In consumer electronic devices and portable battery-driven devices, SI9428DY-T1-E3-VB is suitable for applications such as load switching, battery management, and voltage conversion. Its efficient current control and low on-resistance make it particularly suitable for power management modules in devices such as smartphones and tablets.
6. **Power Tools and Industrial Control**: - Power tools and other industrial control systems often require efficient power switches. SI9428DY-T1-E3-VB can be used for motor control and power conversion in these systems to ensure efficient power supply and stable operation.
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If you have more specific application requirements for this model or need further information, please feel free to ask questions.
* 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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