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CEM4481-VB Product details
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CEM4481-VB is a Single P-MOS deeply optimized for low-voltage power switching scenarios. The Trench technology balances low switching losses and high reliability. The SOP8 package achieves a good balance between heat dissipation capability and board area. The combination of 40V withstand voltage, 16.1A current carrying capability, and 10mΩ on-resistance makes it an ideal cost-reducing and capacity-increasing alternative to traditional DPAK or larger packages, 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 |
|---|---|---|---|---|---|---|---|---|---|
| SOP8 | Single-P | -40V | -2V | -16.1A | 14(mΩ) | 10(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Single-P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Single-P | -40V | -2V | -16.1A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Single-P | -40V | -2V | -16.1A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOP8 | Single-P | MOS |
VDS=-40V: Suitable for 12V/24V systems, providing sufficient margin for negative voltage spikes, reducing the risk of avalanche breakdown.
VGS=±20V: Compatible with 1.8V~12V logic levels, can be directly connected to MCU/PMIC, eliminating the need for level shift circuits.
Vth=-2V (Typical): Can enter the fully conductive region even with low-voltage drive, especially suitable for scenarios with battery voltage decay.
RDS(on)=10mΩ @ VGS=10V: Ultra-low on-resistance, significantly reduces temperature rise under full load, can reduce the area of heat dissipation copper foil.
RDS(on)=14mΩ @ VGS=4.5V: Maintains low impedance even under low-voltage gate drive, suitable for 3.3V/5V logic control.
ID=-16.1A: Ample continuous current margin, can handle the peak demands of most portable and automotive auxiliary loads.
Package SOP8: The heat sink pad design enhances thermal dissipation capability, while balancing small size and automated assembly cost advantages.
Domain and module applications：
Power Management Module: Low internal resistance improves buck/boost efficiency, P-channel simplifies high-side switch drive, no charge pump required.
Battery Protection Module: Fast response characteristics ensure microsecond-level shutdown during overcurrent/short circuit, low internal resistance reduces self-heating of the protection board.
Low-Voltage Motor Drive: Low PWM switching losses, smoother motor operation, significantly lower controller temperature rise.
Consumer Electronics Control Module: Logic-level direct drive simplifies peripherals, suitable for high-volume, low-cost products like smart sockets and USB switches.
LED Lighting Driver: Low conduction voltage drop reduces constant current source power consumption, supports multi-channel parallel connection, improves overall luminaire efficacy.
DC-DC Converters: Replaces traditional P-MOS in load switch and synchronous rectification applications, heavy-load efficiency can be improved by 2~3%, facilitating module miniaturization.
Automotive Auxiliary Power Supply: Voltage margin and wide operating temperature range (-55~150°C) are suitable for 12V automotive bus, high reliability.
Selection Summary: CEM4481-VB achieves a balance between performance margin, package size, and system cost. It is a high cost-performance general-purpose choice for 40V low-voltage P-channel switching applications, especially 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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