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FDMC6686P-VB Product details
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The FDMC6686P-VB is a Single P-MOS deeply optimized for low-voltage power switching scenarios. The Trench process balances low switching losses with high reliability, and the DFN8(3X3) package strikes a balance between heat dissipation and board space. The combination of -20V withstand voltage, -52A current carrying capacity, and 4mΩ on-resistance makes it an ideal cost-reduction and performance upgrade option to replace traditional SOP-8 or DPAK packaged devices, especially suitable for high-density, high-current applications.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| DFN8(3X3) | Single-P | -20V | -1.2V | -52A | 6(mΩ) | 4(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| DFN8(3X3) | Single-P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| DFN8(3X3) | Single-P | -20V | -1.2V | -52A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| DFN8(3X3) | Single-P | -20V | -1.2V | -52A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| DFN8(3X3) | Single-P | MOS |
VDS=-20V: Adapts to 5V/12V low-voltage systems, providing sufficient margin for negative voltage spikes, reducing avalanche breakdown risk.
VGS=±12V: Compatible with 1.8V~12V logic levels, can be directly driven by MCU/PMIC, eliminating the need for level shift circuits.
Vth=-1.2V (Typical): Can enter the fully enhanced region even with low gate drive voltage, especially suitable for battery voltage decay scenarios.
RDS(on)=4mΩ @ VGS=-10V: Ultra-low on-resistance significantly reduces temperature rise under full load, allowing for reduced heat sink copper area.
ID=-52A: Ample continuous current margin to handle peak demands of most portable and automotive auxiliary loads.
Package DFN8(3X3): Small size, low parasitic parameters, supports high-frequency switching, while saving PCB area and assembly costs.
Domain and module applications：
Portable Device Power Management: Low on-resistance improves boost/buck efficiency, extends battery life, small package aids ultra-thin design.
Battery Protection Modules: Fast response ensures microsecond-level shutdown during overcurrent/short circuit, low on-resistance reduces self-heating of the protection board.
Low-Voltage Motor Drives: Low PWM switching losses, smoother motor operation, significantly lower controller temperature rise.
Consumer Electronics Control Modules: Logic level direct drive simplifies peripherals, suitable for high-volume, low-cost products like smart sockets, USB switches.
LED Lighting Drivers: Low conduction voltage drop reduces constant current source power consumption, supports multi-channel parallel connection, improves overall luminaire efficacy.
DC-DC Converters: Replaces Schottky diodes in synchronous rectification, can improve heavy-load efficiency by 2-3%, facilitating module miniaturization.
Automotive Auxiliary Power Supplies: Voltage margin and wide operating temperature range adapt to 12V automotive bus, high reliability.
Selection Summary: The FDMC6686P-VB achieves a balance between performance margin, package size, and system cost. It is a cost-effective general-purpose choice for -20V low-voltage switching applications, particularly suitable for projects with strict space and thermal requirements.
* 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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