Product introduction：
Product Introduction
**SI4491EDY-T1-E3-VB** is a high-efficiency P-Channel MOSFET that uses Trench technology and is packaged in SOP8. This MOSFET has a maximum drain-source voltage (V_DS) of -30V and a gate-source voltage (V_GS) of ±20V, and is suitable for low to medium voltage power control and switching applications. Its threshold voltage (V_th) is -3V, with high switching sensitivity and low switching loss, which can provide excellent performance for power conversion systems.
**SI4491EDY-T1-E3-VB** can also work stably in high current environments, and its maximum drain current (I_D) is -18A. This MOSFET also has an extremely low on-resistance, which is 8mΩ at V_GS = 4.5V and reduced to 5mΩ at V_GS = 10V, which significantly reduces power loss and ensures efficient operation of the system. Its low on-resistance and fast switching characteristics make it suitable for a variety of power management, electric motor drive and battery protection circuits that require high efficiency and high current carrying capacity.
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Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| SOP8 |
Single-P |
-30V |
|
-3V |
-18A |
|
|
5mΩ |
Trench |
| VB Package |
Configuration |
VCE |
VGE |
VGEth(V) |
VCEsat15V |
ICE |
Technology |
| SOP8 |
Single-P |
|
|
|
|
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds18 |
Technology |
| SOP8 |
Single-P |
-30V |
|
-3V |
-18A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| SOP8 |
Single-P |
-30V |
|
-3V |
-18A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| SOP8 |
Single-P |
|
|
|
|
|
|
|
Detailed parameter description
- **Model**: SI4491EDY-T1-E3-VB
- **Package**: SOP8
- **Configuration**: Single P-type MOSFET (Single-P-Channel)
- **Drain-source voltage (V_DS)**: -30V
- **Gate-source voltage (V_GS)**: ±20V
- **Threshold voltage (V_th)**: -3V
- **On-resistance (R_DS(ON))**:
- 8mΩ @ V_GS = 4.5V
- 5mΩ @ V_GS = 10V
- **Maximum drain current (I_D)**: -18A
- **Technology**: Trench (deep trench technology)
- **Maximum power dissipation (P_d)**: 45W
- **Operating temperature range**: -55°C to +150°C
Domain and module applications：
Applicable fields and modules
1. **Power management system**
**SI4491EDY-T1-E3-VB** is very suitable for power management systems, especially in DC-DC converters, battery management systems (BMS) and load switches. In these applications, MOSFET provides low on-resistance and high current capability, which can effectively reduce power loss and improve the energy efficiency of the system. For example, in battery-powered devices, it can effectively control the flow of current, thereby extending the operating time of the device.
2. **Electric motor drive system**
**SI4491EDY-T1-E3-VB** also performs well in electric motor drive systems, especially for drive circuits of DC motors, stepper motors and other power tools. In these systems, MOSFET can significantly reduce power loss, provide smooth and efficient driving performance and improve the operating efficiency of electric motors through efficient switching control.
3. **Load switch and battery protection circuit**
In load switch and battery protection circuit, **SI4491EDY-T1-E3-VB**'s low on-resistance and high current carrying capacity make it very suitable for battery protection and management. This MOSFET can protect the battery from adverse conditions such as overcurrent and overvoltage, ensuring the long life and stability of the battery. For example, in portable battery-powered devices, it can ensure the safe operation of the battery and effectively switch the load current to provide battery protection.
4. **Consumer electronics and smart home**
**SI4491EDY-T1-E3-VB** is also widely used in consumer electronics and smart home devices. It can be used in various power management and load switching applications, such as smart sockets, LED drive circuits, sensor modules, etc. Due to its low power consumption and high efficiency performance, this MOSFET can help smart home devices improve energy efficiency and extend battery life, and its fast response characteristics ensure the stability and reliability of the device.
5. **Automotive electronics and intelligent control systems**
**SI4491EDY-T1-E3-VB** is also suitable for automotive electronic devices, especially in battery management systems and power control systems for electric vehicles (EV) and hybrid electric vehicles (HEV). In these applications, MOSFET optimizes the battery charging and discharging process by precisely controlling the current, thereby improving the performance and reliability of the system. In addition, it can also be used in the vehicle's power system, electric drive system and energy management module to ensure efficient operation of the vehicle under different working conditions.
* 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：
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