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STU1855PLS-VB Product details

Product introduction:

1. **STU1855PLS-VB Product Introduction**

**STU1855PLS-VB** is a **single P-type MOSFET**, using **TO252 package**, with **-60V** drain-source voltage (VDS) and **-35A** maximum drain current (ID). This MOSFET adopts **Trench technology**, which can provide low on-resistance, ensuring high efficiency and low power consumption. Its **threshold voltage (Vth)** is **-1.7V**, which can achieve reliable conduction at low gate-source voltage, suitable for various low-voltage and high-efficiency switching applications. Its **on-resistance (RDS(ON))** is **58mΩ** @ **VGS=4.5V** and **46mΩ** @ **VGS=10V**, providing low-loss conduction characteristics. **STU1855PLS-VB** is suitable for **power management, switching power supply, DC-DC converter and other high-efficiency power applications.

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Product parameter:

VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds2.5 Rds4.5 Rds10 Technology
TO252 Single-P -60V -1.7V -35A 46mΩ Trench
VB Package Configuration VCE VGE VGEth(V) VCEsat15V ICE Technology
TO252 Single-P Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds18 Technology
TO252 Single-P -60V -1.7V -35A Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
TO252 Single-P -60V -1.7V -35A Trench
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
TO252 Single-P
2. **Detailed parameter description**

- **Model**: STU1855PLS-VB
- **Package type**: **TO252** — TO252 package has good heat dissipation performance, suitable for medium and high power MOSFET applications, commonly used in power conversion and power control modules.
- **Configuration**: **Single-P-Channel** — Single P-type MOSFET, suitable for load switch, power management and other circuits.
- **Drain-source voltage (VDS)**: **-60V** — Supports a maximum drain-source voltage of **-60V**, suitable for higher voltage power control systems, such as inverters, load switches, etc.
- **Gate-source voltage (VGS)**: **±20V** — Adapts to a gate-source voltage of **±20V**, and is compatible with various control circuits.
- **Threshold Voltage (Vth)**: **-1.7V** — When the gate-source voltage reaches **-1.7V**, the MOSFET starts to conduct, which is suitable for low gate voltage controlled power switches.
- **On-resistance (RDS(ON))**:
- **58mΩ @ VGS=4.5V** — When the gate-source voltage is **4.5V**, the on-resistance of the MOSFET is **58mΩ**, providing lower switching losses.
- **46mΩ @ VGS=10V** — When the gate-source voltage is **10V**, the on-resistance is further reduced, which is suitable for high current applications and ensures high efficiency of the system.
- **Maximum Drain Current (ID)**: **-35A** — Supports a maximum drain current of **-35A**, which is suitable for power management systems that handle large current loads.
- **Technology Type**: **Trench Technology** — Using Trench technology, the conduction performance of MOSFET is optimized, the on-resistance is reduced, the switching speed is increased, and it is suitable for high-efficiency power conversion.

Domain and module applications:

3. **Applicable fields and modules**

**STU1855PLS-VB** has high current capability and low on-resistance, suitable for various applications that require efficient power control. The following are its specific applicable fields and modules:

#### a) **Switching Power Supply (SMPS)**
**STU1855PLS-VB** is suitable for **Switching Power Supply (SMPS)**, such as **DC-DC Converter** or **AC-DC Converter**. Due to its low on-resistance and high current handling capability, it can provide efficient power conversion and is widely used in battery chargers, power tools power supplies, computer power supplies, etc.

#### b) **Power Management System**
In **Power Management System**, **STU1855PLS-VB** can be used as **load switch**, **power path control** and **power regulation**. Its drain-source voltage of -60V and current capability of -35A are suitable for high-current load control and are widely used in automotive power management, communication power systems, industrial control power supplies, etc.

#### c) Inverter
In the inverter system, the STU1855PLS-VB can be used for DC-AC conversion to convert DC to AC. Its low on-resistance and high current handling capability enable it to efficiently drive high-current loads and are widely used in solar inverters, wind power generation systems, UPS (uninterruptible power supply) and other fields.

#### d) Electric Vehicle (EV) Battery Management System
In the battery management system (BMS) of electric vehicles, the STU1855PLS-VB can be used as a key component of the battery switch to optimize the battery charging and discharging process. Its efficient switching characteristics and low loss make it suitable for battery management applications that require fast response.

#### e) **Power Factor Correction (PFC) Circuit**
In **Power Factor Correction (PFC) Circuit**, **STU1855PLS-VB** can be used as a power switch to help improve the efficiency and stability of the power supply. The low on-resistance characteristic of this MOSFET makes it excel in high-efficiency power supply design, especially in **AC input power supply applications**, it can improve the power factor of the system.

#### f) **Industrial Control and Power Electronics**
In **industrial control systems** and **power electronic equipment**, **STU1855PLS-VB** can be used for power regulation, load switching, power conversion and other modules. It can withstand higher voltage and current loads, and is suitable for use in **power systems, robot control systems, and industrial automation equipment** to provide stable power support.

#### g) **High-efficiency LED lighting**
In **LED driver power**, **STU1855PLS-VB** as a switching element can help achieve efficient **DC-DC conversion**, converting the voltage of the battery or other power source into a constant current suitable for LEDs. Its low on-resistance and high current carrying capacity make it particularly suitable for **high-efficiency LED lighting drivers**, ensuring long life and low energy consumption of lighting systems.

### Summary

**STU1855PLS-VB** is an efficient **-60V single P-type MOSFET**, using **TO252 package**, with low on-resistance and high current handling capability, suitable for **power management, switching power supplies, inverters, power factor correction and other **high-efficiency power conversion applications. Its **Trench technology** provides low loss and efficient switching characteristics, suitable for various fields requiring high current and high power control, such as **solar inverters, LED drivers, electric vehicle battery management, etc.**
* 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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