NUD3105DMT1G Integrated Circuits (ICs)

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The NUD3105DMT1G is a Low Side, Automotive, Smart Low-Side Driver intended for a wide range of automotive applications. It is an advanced, low-side driver integrated into a power distribution switch, providing excellent turn-on and turn-off time characteristics and high level of EMI and EMC immunity. It has one output, providing up to 1 A continuous current.

The NUD3105DMT1G is designed to drive multiple loads in series, allowing the power supply voltage to be scaled down or up. Additionally, the device can switch between different operation modes such as low-side and high-side driver. The internal circuitry of the NUD3105DMT1G is protected against short-circuit, overvoltage and thermal stresses. All these features make the NUD3105DMT1G a versatile and reliable solution for automotive applications.

Application Fields

The NUD3105DMT1G can be used in a wide range of automotive applications such as headlamps, dashboard lighting, turn signals, external lighting, suspension systems and other power control applications. The device is suitable for a variety of automotive applications, including automotive body controllers and driver information systems.

Working Principle

The NUD3105DMT1G power distribution switch is based on a two-terminal device, consisting of a P-type MOSFET and an N-type MOSFET. The two switches are connected in series. When the power switch is activated, current flows through the two MOSFETs, generating a voltage difference between the gate and source terminals of the P-MOSFET. This voltage difference increases the on-state current until it reaches the rated current, which is normally set at 1 A. When the power switch is turned off, the MOSFETs shut off, turning off the output circuit.

The NUD3105DMT1G also has an integrated error-amplifier that allows it to accurately control the turn-on and turn-off times. This ensures that the output remains within the current limits and reduces the chances of overloading the system. Additionally, the device provides a high level of isolation to the power supply voltage, keeping the output voltage stable.

The NUD3105DMT1G is a versatile, low-power device that is designed for automotive applications. Its small size and wide load range make it ideal for a wide range of automotive power applications. Plus, its high level of EMI and EMC immunity make it suitable for in-vehicle use. Thanks to its advanced features, the NUD3105DMT1G is an excellent choice for automotive applications that need a reliable and efficient power switch.

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