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BUK9Y41-80E,115-VB Product details
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You are designing a high-power-density DC-DC converter or automotive electronic module that must withstand a bus voltage of 80V while maintaining extremely low losses under a high current of 90A. Ordinary MOSFETs either lack sufficient voltage tolerance or have high on-resistance, leading to increasingly larger heatsinks. VBsemi BUK9Y41-80E,115-VB is designed for this purpose—it integrates 80V voltage tolerance, 90A current capability, and an on-resistance of only 6mΩ (at 10V drive) in an LFPAK56 (Power-SO8) package using Trench technology, allowing high-power power supply designs to balance performance and space.
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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 | 80V | 1.4V | 90A | 7.2(mΩ) | 6(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N | 80V | 1.4V | 90A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N | 80V | 1.4V | 90A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| LFPAK56 | Single-N |
- Voltage rating 80V, covering 48V systems and automotive-grade transient voltages
- Gate drive range ±20V, compatible with various drive voltages
- Threshold voltage 1.4V, reliable turn-on even at low drive voltages
- On-resistance 6mΩ (10V drive) / 7.2mΩ (4.5V drive), extremely low losses
- Maximum current 90A, handles high-current scenarios with ease
- Package LFPAK56, low thermal resistance, high heat dissipation efficiency, suitable for compact layouts
- Gate drive range ±20V, compatible with various drive voltages
- Threshold voltage 1.4V, reliable turn-on even at low drive voltages
- On-resistance 6mΩ (10V drive) / 7.2mΩ (4.5V drive), extremely low losses
- Maximum current 90A, handles high-current scenarios with ease
- Package LFPAK56, low thermal resistance, high heat dissipation efficiency, suitable for compact layouts
Domain and module applications：
- Automotive DC-DC Converters – As the main switch, withstanding 80V bus voltage and high transient surges, low on-resistance reduces heat generation, improving overall system efficiency.
- 48V Mild Hybrid Systems / Power Tools – Utilizing 90A high current capability and extremely low RDS(on) to meet high-power start-stop and continuous output requirements.
- Motor Drive Modules – Fast switching and low loss characteristics make BLDC/PMSM control smoother and more energy-efficient.
- Server Power Supplies / Telecom Power Supplies – Replacing Schottky diodes in synchronous rectification topologies, significantly reducing voltage drop losses.
- Battery Protection and BMS – High withstand voltage margin ensures rapid circuit disconnection during overvoltage and overcurrent, safeguarding the battery pack.
- Industrial Power Supplies / Charging Station Modules – Handling high-frequency switching and surge currents, ensuring stable and reliable long-term operation. One-sentence summary: BUK9Y41-80E,115-VB is not an ordinary MOSFET; it is the "low-loss switching core" and "reliability cornerstone" for your high-power, high-voltage power supply designs.
* 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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