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BUK7J1R4-40H-VB Product details
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The BUK7J1R4-40H-VB is a Single N-MOS deeply optimized for low-voltage, high-power switching applications. It uses SGT (Split Gate Trench) technology to achieve an excellent balance between extremely low on-resistance and fast switching capability. The LFPAK56 package features excellent thermal paths and low parasitic inductance, suitable for high-density current output. The combination of 40V withstand voltage, 150A current capability, and 0.7mΩ on-resistance makes it an ideal core power device for low-voltage, high-current power paths, motor drives, and automotive applications.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N | 40V | 3V | 150A | 0.7(mΩ) | SGT |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N | SGT |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N | 40V | 3V | 150A | SGT |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N | 40V | 3V | 150A | SGT |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N | MOS |
- VDS=40V: Suitable for 12V/24V/36V systems, covering a wide range of bus voltages, while providing ample margin for inductive load spikes.
- VGS=±20V: Compatible with various gate drive voltages, supports 10V logic drive, can be stably controlled directly by drivers or controllers.
- Vth=3V (typical): Moderate threshold voltage, avoids false turn-on while ensuring deep linear region under strong drive, fully reducing conduction losses.
- RDS(on)=0.7mΩ @ VGS=10V: Milliohm-level ultra-low on-resistance, greatly reduces full-load conduction losses, significantly lowers system temperature rise, can reduce heatsink size.
- ID=150A: Superb continuous current capability, meets high-power-density application requirements, and has good pulse current handling capability.
- Package LFPAK56: Low thermal resistance, low package resistance, supports high current transmission; small mounting area improves PCB space utilization, suitable for automated production.
Domain and module applications：
- Low-Voltage High-Current DC-DC Converters: Replaces traditional multi-tube parallel solutions in synchronous rectification or load switches, a single device can handle hundreds of amperes, improving efficiency and simplifying layout.
- Power Tools and Motor Drives: Extremely low PWM high-frequency switching losses, combined with low conduction voltage drop, ensures smooth motor operation, significantly lower controller temperature rise.
- Automotive Power Distribution Units (PDU) and Fuse Replacement: 150A continuous current capability can cover high-power loads like headlights, fans, heaters, enabling electronic switch control.
- Battery Packs and BMS Systems: Microsecond switching response and milliohm-level on-resistance reduce thermal accumulation during overcurrent/short circuit, improving protection board safety margin.
- Server/Telecom Power Rectification Stage: High efficiency, low loss characteristics help achieve Titanium-level energy efficiency standards, suitable for 40V intermediate bus architectures.
- Electric Power Steering (EPS) and Braking Systems: SGT technology combines fast reverse recovery with low EMI performance, meeting high reliability requirements of automotive electronics.
- Power Path Management (Oring/Load Switching): Ultra-low voltage drop reduces redundant heat dissipation, LFPAK56 package facilitates multi-phase parallel connection for greater current expansion.
Selection Summary: The BUK7J1R4-40H-VB, with its 0.7mΩ ultimate low on-resistance, 150A high current capability, and LFPAK56 low thermal resistance package, provides a high-performance, high-reliability solution for low-voltage, high-power switching applications, particularly suitable for automotive electronics, industrial control, and high-end power systems with stringent requirements for efficiency, temperature rise, and power density.
* 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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