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NDS9945-VB Product details
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The VBsemi NDS9945-VB is a dual N+N channel field-effect transistor manufactured using Trench technology, designed for medium and low voltage power conversion and multi-channel power control scenarios. Its standard SOP8 package balances thermal performance and layout flexibility, making it suitable for high-density PCB layouts and automated assembly. The device provides stable switching characteristics within a 60V drain-source voltage range. The independent dual-channel design can be flexibly configured for synchronous rectification, load switching, or half-bridge driving, and the gate drive is compatible with common 3.3V/5V logic levels for easy system integration.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOP8 | Dual-N+N | 60V | 1.9V | 4A | 130(mΩ) | 110(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Dual-N+N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Dual-N+N | 60V | 1.9V | 4A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Dual-N+N | 60V | 1.9V | 4A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOP8 | Dual-N+N | MOS |
Drain-Source Voltage (VDS): 60V
Gate-Source Voltage (VGS): ±20V
Threshold Voltage (Vth) Typical: 1.9V
On-Resistance (VGS=4.5V): 130mΩ (typical)
On-Resistance (VGS=10V): 110mΩ (typical)
Maximum Drain Current (ID): 4A
Package Type: SOP8
Process Technology: Trench
Domain and module applications：
1. Power Management Modules: Used for synchronous rectification or load switching in DC-DC converters. The dual N+N configuration saves PCB space, reduces conduction losses, and improves conversion efficiency.
2. Battery-Powered Systems: Acts as the main switch for the charge/discharge path, working with a protection IC for fast overcurrent and overvoltage shutdown, suitable for portable devices and backup power supplies.
3. Motor Drive Control: Drives small DC brushed or brushless motors, suitable for fans, pumps, and automation actuators, supporting PWM speed control and forward/reverse control.
4. Consumer Electronics Power Switching: Integrated into smart sockets, USB power on/off circuits, and multi-channel load distribution circuits for reliable power management.
5. LED Lighting Drivers: Used in low-voltage constant current or dimming modules, providing stable output current and suppressing light flicker.
6. Automotive Auxiliary Power Supplies: Provides regulated power for infotainment systems, sensors, and auxiliary loads in 12V/24V automotive networks.
7. Signal and Power Isolation Control: The dual-channel design can be used for low-side driving or logic level conversion circuits, enhancing system design flexibility.
* 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
