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BUK9Y72-80E,115-VB Product details
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You are designing a high-power-density DC-DC converter or a high-current switching circuit that needs to handle an 80V voltage bus. Traditional MOSFETs often struggle to balance voltage tolerance and conduction losses, either with bulky packages or uncontrolled heat generation. VBsemi BUK9Y72-80E,115-VB is designed for this purpose—it offers 80V voltage tolerance, a massive 90A current capability, and an on-resistance as low as 6mΩ, all packed into the compact LFPAK56 (Power-SO8) package, enabling medium-voltage high-power power supply designs without compromise.
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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, providing ample safety margin for 48V systems and multi-cell battery packs
- Gate drive range ±20V, compatible with direct drive from 5V~12V logic
- Threshold voltage 1.4V, reliable turn-on even with low-voltage control signals
- On-resistance 6mΩ (10V drive) / 7.2mΩ (4.5V drive), extremely low conduction losses
- Maximum current 90A, LFPAK56 package can still handle high power
- Utilizes Trench technology, excellent switching performance, superior FOM figure of merit
Domain and module applications：
- Power Tools / Garden Machinery – As the power switch for brushless motor drive stages, withstanding locked-rotor high current surges while maintaining low-temperature operation.
- 48V Telecom Power Supplies / Server Power Supplies – Used in synchronous rectification or OR-ing circuits to improve overall system efficiency with extremely low voltage drop.
- Lithium Battery Protection Boards / Energy Storage BMS – Reliably disconnects under 80V bus voltage, effectively protecting cells from overcurrent and short circuit damage.
- Automotive DC-DC Converters – Adapts to voltage fluctuations in 12V/24V/48V automotive electrical architectures, providing a stable power conversion path.
- Drone / Robot Power Systems – Leveraging 90A high current capability and low on-resistance to provide ample margin for high power density motor drives.
- Electric Bicycle / Scooter Controllers – In scenarios where the MOSFET is directly connected to the battery, withstanding back-EMF surges to ensure long-term system stability.
- Industrial PLCs / Variable Frequency Drives – Used for bus switches or braking units, significantly reducing heatsink size and increasing power density. **One-sentence summary:** BUK9Y72-80E,115-VB is not an ordinary MOSFET; it is your "low-loss ace" and "reliable cornerstone" for 80V medium-voltage high-power 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
Technical support：
* If you have any questions about the product, please fill out the form to submit, we will reply you within 24 hours
