LM3630EVM

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The LM3630EVM is a type of evaluation board specifically designed for supporting LED drivers. It is based on a high-performance and low-cost LED driver with advanced features. Its primary purpose is to facilitate testing, development and evaluation of LED lighting systems that are powered by the LM3630 and its derivatives. The LM3630EVM is a small and compact, yet highly sophisticated and advanced evaluation board that provides the user with an modifiable platform for both LED driver performance development and LED lighting system design optimization.

The LM3630EVM is powered by the LM3630 LED driver, which is a high-performance, low-cost, integrated, intelligent LED driver IC. The LM3630 provides multiple features and functions, including variable dimming, dimming curve customization, pulse-width modulation (PWM) control, output current and voltage monitoring, short circuit and thermal protection, digital inputs, and analog dimming. It also provides high efficiency, wide-ranging inputs, adaptive dimming, and low electromagnetic interference (EMI).

The LM3630EVM offers simplified implementation of the LM3630 LED driver. It minimizes board-level design effort by combining a single-channel, direct AC-input, flyback-based LED driver plus a controller with integrated digital diagnostics. This approach minimizes overall system cost, reduces development time, and simplifies board layout complexity. The board also offers load current and open/short circuit protection.

The LM3630EVM evaluation board also includes several essential components that are essential for proper operation. This includes the power supply components (e.g., the transformer, Schottky diode, inductor, capacitors and resistors), the control block (which includes a high-side and low-side MOSFET, a PWM dimming signal generator, and a boost regulator) and the output stage (which includes an output current sensing circuit and an output voltage sensing circuit).

The overall working principle of the LM3630EVM is relatively simple. When power is applied to the board, an AC-input voltage is converted to a lower level voltage by the voltage converter and is then transformed into a suitable voltage level for the LED driver by the transformer. The controller then generates a PWM dimming signal, which is then supplied to the LED driver. The LED driver then adjusts the LED current according to the dimming signal. The output current and voltage are monitored by the current and voltage sensing circuits, and the overall power of the LED lighting system is thereby regulated.

In summary, the LM3630EVM is an advanced, easy-to-use evaluation board for LED driver design and development. It is based on the versatile and efficient LM3630 LED driver, and it provides an evaluation platform for optimizing LED lighting systems. Its features include simplified implementation, load current and open/short circuit protection, along with the ability to customize dimming curves and the flexible PWM dimming control. With the LM3630EVM, developers can quickly and easily evaluate any LED driver design.

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