SI3951DV-T1-GE3-VB Product details
Product introduction:
**SI3951DV-T1-GE3-VB** is a dual P-Channel MOSFET in SOT23-6 package, designed based on Trench technology, suitable for high-efficiency power switching and load control applications. This MOSFET has low on-resistance and high current carrying capacity, and can provide stable performance at a maximum drain-source voltage of -20V. Its gate-source voltage (V_GS) range is ±12V, the threshold voltage (V_th) is -0.6V, and the maximum drain current (I_D) is -4A. The low on-resistance (R_DS(ON)) of the MOSFET is 100mΩ (V_GS = 2.5V) and 75mΩ (V_GS = 4.5V), respectively, ensuring low power loss and high-efficiency operation, and is particularly suitable for use in low-power, frequently switching power management systems.
This product is widely used in battery management, load switching, power management, DC-DC converters, overcurrent protection and smart home devices, and can effectively improve the overall efficiency and reliability of the system, reduce heat generation and improve system stability.
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Product parameter:
| VB Package | Configuration | VDS(V) | VGS | Vthyp(V) | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Dual-P+P | -20V | -0.6V | -4A | 100mΩ | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Dual-P+P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp(V) | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Dual-P+P | -20V | -0.6V | -4A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp(V) | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Dual-P+P | -20V | -0.6V | -4A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Dual-P+P |
| Parameter | Description |
|-------------------------|----------------------------------------------------------|
| **Package** | SOT23-6 |
| **Configuration** | Dual P-Channel (P+P) |
| **Drain-Source Voltage (V_DS)** | -20V |
| **Gate-Source Voltage (V_GS)** | ±12V |
| **Threshold Voltage (V_th)** | -0.6V |
| **On-Resistance (R_DS(ON))** | 100mΩ (V_GS = 2.5V)
75mΩ (V_GS = 4.5V) |
| **Drain Current (I_D)** | -4A |
| **Technology** | Trench |
Domain and module applications:
**1. Battery Management System (BMS) **
- In the battery management system (BMS), **SI3951DV-T1-GE3-VB** is mainly used for battery charge and discharge control. Its low on-resistance and high current carrying capacity make it very suitable for battery pack management in electric vehicles (EV), portable devices and hybrid electric vehicles (HEV), helping to accurately regulate the current flow, improve charging and discharging efficiency, and reduce energy loss. Especially under high load conditions, it can work stably and effectively extend battery life.
**2. Load switch applications **
- **SI3951DV-T1-GE3-VB** performs well in load switch applications, especially for power control of portable devices, consumer electronics, smart homes and small appliances. Due to its low on-resistance, it can efficiently control the start and stop of the device to avoid affecting the operating efficiency of the device due to excessive power loss. For example, in smart sockets, lighting controllers, and other home appliances, it can be used as a switching element to quickly respond to switching operations while ensuring that the equipment works efficiently and stably.
**3. DC-DC Converter**
- In DC-DC converters, **SI3951DV-T1-GE3-VB** can be used for efficient voltage conversion processes. Its low R_DS(ON) characteristics enable this MOSFET to reduce power losses during high-frequency conversion and improve overall system efficiency. Common applications include power adapters, photovoltaic systems, battery chargers, etc. The stable current transmission and high efficiency provided by MOSFET help these systems maintain low temperature rise and improve energy utilization efficiency.
**4. Power Management and Voltage Regulator**
- In power management systems, **SI3951DV-T1-GE3-VB** can be used as a switching element to regulate current and voltage. Whether it is used in laptops, smartphones, or other low-power electronic devices, this MOSFET can help power modules operate efficiently and output stably. Low on-resistance enables it to reduce energy loss and improve the overall efficiency of the voltage regulation system, especially in portable battery-driven devices, helping to extend battery life.
**5. Overcurrent protection and current regulation**
- **SI3951DV-T1-GE3-VB** can be used as a switching element in overcurrent protection applications to protect circuits from current overload. In battery-driven systems and load switching circuits, it can withstand high currents and cut off the power supply in time when the current is overloaded to avoid damage to the circuit or other sensitive components. The high load capacity of this MOSFET enables it to maintain stable performance in high current environments.
**6. Smart home and consumer electronics**
- In smart home and consumer electronics products, **SI3951DV-T1-GE3-VB** is used for power control and switching regulation. Due to its low R_DS(ON) characteristics, it can respond quickly to power switching operations while maintaining high efficiency. It is widely used in smart home devices such as smart sockets, home automation systems, wearable devices, smart speakers, etc., providing efficient switching control and load regulation.
**Summary: **
**SI3951DV-T1-GE3-VB** Dual P-Channel MOSFET is a switching element suitable for a variety of low-power, high-efficiency applications. Its low on-resistance, high current carrying capacity and excellent switching performance make it very suitable for use in battery management, load switching, DC-DC converters, power management, overcurrent protection and smart home. This MOSFET not only improves the overall efficiency of the system, but also effectively reduces energy loss. It is particularly suitable for battery-powered devices, low-power power modules and load switching applications.
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