Product introduction：
SI4542DY-VB MOSFET Product Introduction
SI4542DY-VB is a dual N+P channel MOSFET produced by **Vishay**, using **SOP8** package, using **Trench** technology, designed for efficient power management and low voltage applications. This MOSFET has **VDS** of **±30V** and supports **±20V** gate-source voltage (**VGS**). Its **threshold voltage (Vth)** is **1.6V** (N channel) and **-1.7V** (P channel), respectively, which is suitable for low voltage gate drive systems. SI4542DY-VB has a low on-resistance (**RDS(ON)**), which is **18mΩ** (N channel) and **40mΩ** (P channel) at **VGS=10V**, enabling it to achieve efficient performance in switching operations. With a maximum drain current (ID) of ±8A, the device can be widely used in various power management, voltage conversion and load switching applications.
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Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| SOP8 |
Dual-N+P |
±30V |
|
1.6/-1.7V |
±8A |
|
|
18/40mΩ |
Trench |
| VB Package |
Configuration |
VCE |
VGE |
VGEth(V) |
VCEsat15V |
ICE |
Technology |
| SOP8 |
Dual-N+P |
|
|
|
|
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds18 |
Technology |
| SOP8 |
Dual-N+P |
±30V |
|
1.6/-1.7V |
±8A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| SOP8 |
Dual-N+P |
±30V |
|
1.6/-1.7V |
±8A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| SOP8 |
Dual-N+P |
|
|
|
|
|
|
|
Detailed parameter description
- **Model**: SI4542DY-VB
- **Package**: SOP8
- **Configuration**: Dual N+P channel
- **Maximum drain-source voltage (VDS)**: ±30V
- **Gate-source voltage (VGS)**: ±20V
- **Threshold voltage (Vth)**:
- N channel: 1.6V
- P channel: -1.7V
- **On-resistance (RDS(ON))**:
- N channel: 24mΩ (VGS = 4.5V), 18mΩ (VGS = 10V)
- P channel: 50mΩ (VGS = 4.5V), 40mΩ (VGS = 10V)
- **Maximum drain current (ID)**:
- N channel: 8A
- P channel: -8A
- **Technology**: Trench
- **Operating temperature range**: -55°C to +150°C
Domain and module applications：
Applications and module examples
1. **DC-DC converter**
- SI4542DY-VB is very suitable for **DC-DC converter** due to its low on-resistance and efficient switching performance, especially in applications that require high-efficiency voltage conversion, such as portable power, LED driver, mobile device power supply, etc. Its low RDS(ON) enables the device to operate at high switching frequency, significantly reducing power loss.
2. **Load switch**
- This MOSFET can be used for **load switch** to control the switching of power between different circuits. Due to its **low RDS(ON)**, it can achieve efficient current conduction during load switching and reduce power loss. It is widely used in portable devices, consumer electronics, low-power power management systems and other fields.
3. **Battery management system**
- In the battery management system (**BMS**), SI4542DY-VB can be used as a control switch for charging and discharging, helping to achieve efficient management of battery voltage and current. Due to its low switching loss, this MOSFET performs well in battery management, charging protection, and load protection, and is suitable for battery management modules of power tools, battery-powered devices, and electric vehicles (EVs).
4. **Power Management IC**
- This MOSFET is suitable for **Power Management IC**, especially as a power switch in low-voltage and high-efficiency power systems. It provides efficient power conversion in consumer electronics, industrial power supplies, medical equipment, and other fields, and helps reduce the overall power consumption of the system.
5. **Automotive Electronics**
- In the field of automotive electronics, SI4542DY-VB can be used in power management modules, power distribution systems, DC-DC converters, and battery management systems. It is suitable for 12V and 24V battery-powered automotive applications, and can effectively perform voltage conversion and current regulation while ensuring that the system operates in an efficient and reliable working state, especially in the battery systems of electric vehicles and hybrid vehicles.
* 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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