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SI3447DV-T1-E3-VB Product details
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SI3447DV-T1-E3-VB Product Introduction
**SI3447DV-T1-E3-VB** is a single P-channel MOSFET in a **SOT23-6** package, designed for low-voltage, high-efficiency switching power supplies. This MOSFET has a maximum drain-source voltage of **-30V**, can support a maximum drain current of **-4.8A**, and has a low on-resistance (**RDS(ON)**)—49mΩ @VGS = 10V and 54mΩ @VGS = 4.5V, which is suitable for circuits requiring low power loss and efficient switching. It uses **Trench** technology to help increase switching speed and reduce switching losses, and is widely used in battery management, power conversion, motor drive, and low-power load control. With its **-1.7V** gate-source turn-on voltage, it can operate at a lower gate voltage to meet the needs of high-side switching and load control.
**SI3447DV-T1-E3-VB** is a single P-channel MOSFET in a **SOT23-6** package, designed for low-voltage, high-efficiency switching power supplies. This MOSFET has a maximum drain-source voltage of **-30V**, can support a maximum drain current of **-4.8A**, and has a low on-resistance (**RDS(ON)**)—49mΩ @VGS = 10V and 54mΩ @VGS = 4.5V, which is suitable for circuits requiring low power loss and efficient switching. It uses **Trench** technology to help increase switching speed and reduce switching losses, and is widely used in battery management, power conversion, motor drive, and low-power load control. With its **-1.7V** gate-source turn-on voltage, it can operate at a lower gate voltage to meet the needs of high-side switching and load control.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -30V | -1.7V | -4.8A | 49mΩ | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -30V | -1.7V | -4.8A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -30V | -1.7V | -4.8A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P |
SI3447DV-T1-E3-VB Detailed parameter description
- **Package**: SOT23-6
- **Configuration**: Single P-channel
- **Maximum drain-source voltage (VDS)**: -30V
- **Gate-source voltage (VGS)**: ±20V
- **Gate-source turn-on voltage (Vth)**: -1.7V
- **On-resistance (RDS(ON))**:
- 54mΩ @ VGS = 4.5V
- 49mΩ @ VGS = 10V
- **Maximum drain current (ID)**: -4.8A
- **Technology**: Trench technology
- **Package**: SOT23-6
- **Configuration**: Single P-channel
- **Maximum drain-source voltage (VDS)**: -30V
- **Gate-source voltage (VGS)**: ±20V
- **Gate-source turn-on voltage (Vth)**: -1.7V
- **On-resistance (RDS(ON))**:
- 54mΩ @ VGS = 4.5V
- 49mΩ @ VGS = 10V
- **Maximum drain current (ID)**: -4.8A
- **Technology**: Trench technology
Domain and module applications：
SI3447DV-T1-E3-VB Applications and Modules
1. **Low-voltage power switch**: SI3447DV-T1-E3-VB is very suitable for high-side switch applications in **low-voltage DC-DC converters** with its low **RDS(ON)** and high current carrying capacity. It can effectively reduce switching losses, improve conversion efficiency, and reduce heat generation, making it an ideal choice in low-power power modules.
- **Example**: In a 5V or 12V power module, as a high-side switch control element, it can efficiently switch current and improve power efficiency, and is particularly suitable for portable electronic devices such as mobile power supplies, portable chargers, etc.
2. **Battery Management System (BMS)**: SI3447DV-T1-E3-VB is an ideal choice in battery management systems, especially in battery protection and charging control circuits. Through its low on-resistance and high current capability, it can protect the battery from overvoltage and overcurrent, ensuring that the battery operates within a safe range.
- **Example**: In the battery management system of power tools and electric bicycles, MOSFET is used as a protection switch to control the charging and discharging process of the battery, prevent the battery from being overcharged or over-discharged, and thus prolong the battery life.
3. **Load control and switching circuit**: As a P-channel MOSFET, SI3447DV-T1-E3-VB is suitable for load switching circuits that require high-side switch control. Its low on-resistance enables it to maintain low power loss under heavy load conditions, making it suitable for applications such as switching power supplies, LED drivers, and motor drivers.
- **Example**: In **LED lighting control**, it is used as a load switch to regulate current to control light brightness and optimize energy efficiency. Its low on-resistance reduces energy loss and improves lamp efficiency.
4. **Motor drive circuit**: This MOSFET can be used in low-voltage motor drive circuits, especially where efficient current control is required. Through its low on-resistance, it can improve the efficiency of the motor drive system and reduce power loss during switching.
- **Example**: In DC motor drive systems, MOSFETs are used as high-side switches to ensure that the motor can run in a stable and efficient manner, providing precise control, and are suitable for motor control in home appliances, robots or industrial automation systems.
5. **Inverter and power conversion module**: SI3447DV-T1-E3-VB is suitable for inverter and switching power supply applications that require high efficiency and low power consumption, especially in low-voltage systems such as solar inverters, electric vehicle chargers, etc.
- **Example**: In solar inverters, MOSFETs can be used as key switching components to help convert the DC power output from solar panels into AC power and ensure efficient energy utilization during the conversion process.
1. **Low-voltage power switch**: SI3447DV-T1-E3-VB is very suitable for high-side switch applications in **low-voltage DC-DC converters** with its low **RDS(ON)** and high current carrying capacity. It can effectively reduce switching losses, improve conversion efficiency, and reduce heat generation, making it an ideal choice in low-power power modules.
- **Example**: In a 5V or 12V power module, as a high-side switch control element, it can efficiently switch current and improve power efficiency, and is particularly suitable for portable electronic devices such as mobile power supplies, portable chargers, etc.
2. **Battery Management System (BMS)**: SI3447DV-T1-E3-VB is an ideal choice in battery management systems, especially in battery protection and charging control circuits. Through its low on-resistance and high current capability, it can protect the battery from overvoltage and overcurrent, ensuring that the battery operates within a safe range.
- **Example**: In the battery management system of power tools and electric bicycles, MOSFET is used as a protection switch to control the charging and discharging process of the battery, prevent the battery from being overcharged or over-discharged, and thus prolong the battery life.
3. **Load control and switching circuit**: As a P-channel MOSFET, SI3447DV-T1-E3-VB is suitable for load switching circuits that require high-side switch control. Its low on-resistance enables it to maintain low power loss under heavy load conditions, making it suitable for applications such as switching power supplies, LED drivers, and motor drivers.
- **Example**: In **LED lighting control**, it is used as a load switch to regulate current to control light brightness and optimize energy efficiency. Its low on-resistance reduces energy loss and improves lamp efficiency.
4. **Motor drive circuit**: This MOSFET can be used in low-voltage motor drive circuits, especially where efficient current control is required. Through its low on-resistance, it can improve the efficiency of the motor drive system and reduce power loss during switching.
- **Example**: In DC motor drive systems, MOSFETs are used as high-side switches to ensure that the motor can run in a stable and efficient manner, providing precise control, and are suitable for motor control in home appliances, robots or industrial automation systems.
5. **Inverter and power conversion module**: SI3447DV-T1-E3-VB is suitable for inverter and switching power supply applications that require high efficiency and low power consumption, especially in low-voltage systems such as solar inverters, electric vehicle chargers, etc.
- **Example**: In solar inverters, MOSFETs can be used as key switching components to help convert the DC power output from solar panels into AC power and ensure efficient energy utilization during the conversion process.
* 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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