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BUK9840-55,115-VB Product details
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BUK9840-55,115-VB is a Single N-MOS deeply optimized for 60V low-voltage power switching applications. Trench technology strikes a good balance between conduction loss and switching speed, and the SOT223 package offers excellent thermal dissipation and a compact footprint. The combination of 60V withstand voltage, 7A current carrying capacity, and 28mΩ on-resistance makes it suitable for medium and low-voltage, high-reliability applications such as power management, motor drives, and automotive auxiliary loads, serving as a cost-effective alternative to traditional DPAK or SOP-8 packaged devices.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT223 | Single-N | 60V | 1.7V | 7A | 33(mΩ) | 28(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT223 | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT223 | Single-N | 60V | 1.7V | 7A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT223 | Single-N | 60V | 1.7V | 7A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT223 | Single-N |
VDS=60V: Suitable for 12V/24V/48V systems, providing ample voltage margin to effectively absorb inductive load spikes and reduce avalanche failure risk.
VGS=±20V: Compatible with 3.3V~12V logic levels, can directly connect to MCU/PMIC or driver IC, simplifying gate drive circuit design.
Vth=1.7V (typical): Low threshold voltage ensures full conduction under low-voltage drive conditions, suitable for battery-powered and voltage drop scenarios.
RDS(on)=28mΩ @ VGS=10V: Low on-resistance significantly reduces full-load power consumption and temperature rise, decreases heat sink copper area, and improves system efficiency.
ID=7A: Ample continuous current capability meets steady-state and transient requirements of most medium-power loads, suitable for compact power modules.
Package SOT223: Combines good thermal path with small size, supports automated SMD assembly, reduces PCB footprint and overall cost.
VGS=±20V: Compatible with 3.3V~12V logic levels, can directly connect to MCU/PMIC or driver IC, simplifying gate drive circuit design.
Vth=1.7V (typical): Low threshold voltage ensures full conduction under low-voltage drive conditions, suitable for battery-powered and voltage drop scenarios.
RDS(on)=28mΩ @ VGS=10V: Low on-resistance significantly reduces full-load power consumption and temperature rise, decreases heat sink copper area, and improves system efficiency.
ID=7A: Ample continuous current capability meets steady-state and transient requirements of most medium-power loads, suitable for compact power modules.
Package SOT223: Combines good thermal path with small size, supports automated SMD assembly, reduces PCB footprint and overall cost.
Domain and module applications：
Power Conversion and DC-DC Module: Replaces Schottky diodes in synchronous rectification or step-down/step-up topologies, improving heavy-load efficiency and facilitating module miniaturization.
Battery Protection and Charging Management: Low internal resistance reduces self-heating of the protection board, fast switching characteristics support rapid shutdown during overcurrent/short circuit, enhancing safety.
Low-Voltage Motor Drive: Low PWM switching loss, smoother motor operation, significantly reduced controller temperature rise, suitable for power tools, fans, and other loads.
Vehicle Auxiliary Power Supply: 60V withstand voltage margin combined with wide temperature operating range, adaptable to 12V/24V vehicle bus environments, high reliability.
LED Lighting Driver: Low conduction voltage drop reduces constant current source power loss, supports multi-channel parallel connection, improving overall lamp efficiency and thermal stability.
Industrial Control and Automation Equipment: Logic level drive simplifies peripheral interfaces, suitable for PLC outputs, valve control, and other applications requiring long life and high noise immunity. Selection Summary: BUK9840-55,115-VB achieves a balanced design between voltage rating, on-resistance, package thermal performance, and system cost. It is a universal cost-effective choice for 60V medium and low-voltage switching applications, especially suitable for projects with strict requirements on power density, thermal efficiency, and mass production economy.
* 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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