The NDS9956 is a dual N-Channel enhancement mode Field Effect Transistor (FET) from Fairchild Semiconductor, now part of ON Semiconductor. This device is designed for low voltage, high-speed switching applications. It integrates two MOSFETs in a single package, which helps to reduce board space and simplify circuit design.

Applications:

• Load Switching: Efficiently switches power to various loads.
• Power Management: Used in power management circuits for portable devices.
• DC-DC Conversion: Employed in DC-DC converters for voltage regulation.
• Motor Control: Suitable for low-power motor control applications.
• Backlight Inverters: Drives backlight LEDs in LCD screens.

Features:

• Dual N-Channel MOSFET: Contains two N-Channel MOSFETs in one package.
• Low On-Resistance (RDS(on)): Minimizes power loss during conduction.
• High-Speed Switching: Reduces switching losses in high-frequency applications.
• Low Threshold Voltage: Ensures that the MOSFET turns on quickly and efficiently.
• Surface Mount Package: Designed for high-density mounting on printed circuit boards.

Benefits:

• Space Saving: Integrating two MOSFETs in one package reduces board space.
• Improved Efficiency: Low RDS(on) reduces power loss, leading to higher efficiency in power circuits.
• Fast Switching Speed: Reduces switching losses and improves performance in high-frequency applications.
• Reduced Heat Dissipation: Minimizes heat generation, improving system reliability.
• Simplified Circuit Design: Simplifies layout and reduces component count.

Specifications:

The NDS9956 typically features a drain-source voltage (VDS) of 20V, a gate-source voltage (VGS) of ±12V, and a continuous drain current (ID) of 2.8A. The drain-source on-resistance (RDS(on)) is typically around 0.08 Ohms at a gate-source voltage of 4.5V. The threshold voltage (Vth) is typically around 1.0V. It is available in a SO-8 package, suitable for surface mount technology.