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BUK4D38-20PH-VB Product details

Product introduction:

VBsemi BUK4D38-20PH-VB is a Single P-channel field effect transistor using Trench technology, designed for low-voltage load switching and battery management scenarios. Its DFN6(2X2) small package combines heat dissipation performance with layout flexibility, suitable for space-constrained high-density PCB designs. The device provides stable switching characteristics within a -20V drain-source voltage range, with gate drive compatible with common 2.5V/4.5V/10V logic levels for easy system integration, and offers low on-resistance and high current density advantages.

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Product parameter:

VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds2.5 Rds4.5 Rds10 Technology
DFN6(2X2) Single-P -20V -0.6V -10A 40(mΩ) 28(mΩ) 20(mΩ) Trench
VB Package Configuration VCE VGE VGEth(V) VCEsat15V ICE Technology
DFN6(2X2) Single-P Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds18 Technology
DFN6(2X2) Single-P -20V -0.6V -10A Trench
VB Package Configuration VDS(V) VGS Vthyp(V) ID(A) Rds6 Technology
DFN6(2X2) Single-P -20V -0.6V -10A Trench
VB Package Polarity Vz / VR Pd VF IF IR Cd Type
DFN6(2X2) Single-P
Drain-Source Voltage (VDS): -20V
Gate-Source Voltage (VGS): ±20V
Threshold Voltage (Vth): -0.6V (Typical)
On-Resistance (VGS=2.5V): 40mΩ (Typical)
On-Resistance (VGS=4.5V): 28mΩ (Typical)
On-Resistance (VGS=10V): 20mΩ (Typical)
Maximum Drain Current (ID): -10A
Package Type: DFN6(2X2)
Process Technology: Trench

Domain and module applications:


1. Portable Device Power Management: Used for load disconnect paths in power banks and handheld voltage regulator modules, utilizing low on-resistance to reduce voltage drop and extend battery life.
2. Battery Protection System: Acts as the main switch for lithium battery charging/discharging circuits, working with protection ICs for fast overcurrent/overvoltage shutdown, ensuring cell safety.
3. Low-Voltage Motor Drive: Drives small DC brushed or brushless motors, suitable for fans, pumps, and toy actuators, supporting low-voltage PWM speed control.
4. Consumer Electronics Control Unit: Integrated into smart wearables, USB on/off circuits, enabling load detection and power distribution.
5. LED Lighting Constant Current Drive: Applied in low-voltage LED strips or module drivers, stabilizing output current and suppressing light flicker.
6. DC-DC Converters: Used for load switches or reverse polarity protection, reducing power loss, suitable for Buck/Boost compact designs.
7. Automotive Auxiliary Power: Provides stable low-voltage power supply and switch control for infotainment, sensors, and other auxiliary loads in 12V automotive networks.
* 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

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