LM3404FSTDIMEV/NOPB

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The LM3404FSTDIMEV/NOPB evaluation board demonstrates the operation and flexibility of the LM3404FST, a high-efficiency, low-side, constant current sink driver designed for driving LEDs with low voltage supplies. It provides a cost effective approach to the development of LED based systems.

The LM3404FST is designed to provide constant current to address the varying input current demands of different LED installations and optimize system performance. The device has an input power range of 4.5V-70V and can drive LEDs up to 20A with excellent line regulation. The LM3404FSTDIMEV/NOPB is a single-channel evaluation board that enables designers to evaluate the current-sinking capability of the LM3404FST.

The working principle of LM3404FSTDIMEV/NOPB is based on current mode control for regulating the LED current. The board features an adjustable USB-interactive potentiometer for setting the LED current. The potentiometer is used to adjust the LED current from 0 to nominal value. An LED is included on the board as a load. The output current level is determined by the voltage on the SET pin.

The LM3404FSTDIMEV/NOPB offers a step-by-step guide for easy evaluation of the device’s key features, including the burst mode operation, the analog dimming, the frequency setting and the soft frequency dithering. The board has multiple termination points, allowing users to connect external components to customize applications. The evaluation board also includes voltage and current monitors, which provide a comprehensive display of system operation.

The LM3404FSTDIMEV/NOPB is designed to be used for LED driver applications. Its features are optimized for the design of LED-based systems, including lighting, automotive, medical devices, instrumentation, signage and displays. The LM3404FSTDIMEV/NOPB evaluation board is ideal for designers who are looking for high-efficiency, low-voltage, PWM dimmable LED drivers.

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