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BUK9Y25-80E,115-VB Product details
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BUK9Y25-80E,115-VB is a Single N-MOS deeply optimized for medium-to-high-power switching applications, using Trench technology to combine extremely low conduction losses with excellent switching characteristics. The LFPAK56 package achieves an ideal balance between thermal resistance, parasitic parameters, and board space. The combination of 80V voltage tolerance, 90A continuous current capability, and 6mΩ on-resistance makes it an ideal choice for high-performance, high-reliability power paths in communication power supplies, automotive electronics, and industrial control fields.
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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 |
VDS=80V: Suitable for 24V/36V/48V systems, providing ample margin for motor transient spikes and inductive load back-EMF, significantly enhancing system avalanche capability.
VGS=±20V: Compatible with common 5V~12V drive voltages, can be directly controlled by gate driver IC or MCU+driver, simplifying peripheral design.
Vth=1.4V (Typical): Low threshold ensures reliable turn-on at low drive voltages while maintaining good anti-interference noise margin.
RDS(on)=6mΩ @ VGS=10V, 7.2mΩ @ VGS=4.5V: Ultra-low on-resistance, minimal conduction loss at full load, effectively reducing temperature rise and decreasing heatsink size or copper area.
ID=90A: Ample high-current carrying capacity, meeting heavy-load application requirements such as high-power density converters, battery circuits, and motor drives.
Package LFPAK56: Low package resistance and inductance, suitable for high-frequency switching; backside heat sink pad design reduces thermal resistance, improving long-term reliability.
Domain and module applications：
Telecom and Server Power Supplies: Ultra-low on-resistance improves synchronous rectification efficiency, high withstand voltage handles bus surges, combined with a cost-effective package to boost power density.
Motor Drives and Industrial Control: 80V withstand voltage adapts to 24V/48V motor buses, low PWM switching losses, high current capacity meets startup and stall conditions.
Battery Protection and Management: 90A continuous current and fast switching capability suitable for power battery packs and energy storage systems, low internal resistance reduces protection board self-heating, extending cycle life.
Automotive Auxiliary Power Supplies and DC-DC Converters: Wide voltage margin covers 12V/24V automotive buses, stable operation in harsh environments, suitable for ECU and ADAS power modules.
Power Tools and Power Load Switches: High current density combined with the small LFPAK56 size can replace traditional DPAK packages, saving space while ensuring thermal performance.
High-Power LED Lighting Drivers: Low conduction voltage drop reduces constant current stage power consumption, high withstand voltage adapts to multi-string LEDs, improving overall luminous efficacy and reliability.
UPS and Inverters: Sufficient current withstand capability under undervoltage and overload conditions, low losses improve overall conversion efficiency, supporting modular parallel design. Selection Summary: BUK9Y25-80E,115-VB achieves 6mΩ ultra-low on-resistance and 90A high current capability at the 80V voltage level, combined with a low thermal resistance LFPAK56 package, making it a preferred device for high-performance power conversion, motor drives, and battery management systems, especially suitable for industrial and automotive applications with strict requirements on efficiency, temperature rise, and reliability.
* 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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