STEVAL-ILL049V1

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Evaluation boards, LED drivers, and power converters are capable of efficiently controlling LED systems. STEVAL-ILL049V1 from STMicroelectronics is an advanced evaluation platform designed to allow users to freely configure the PFM constant current driver that the company offers. This article discusses the application field and working principle of the STEVAL-ILL049V1 board.

The STEVAL-ILL049V1 is designed for use as a Power Factor Modulation (PFM) constant current driver. This board has an 8-bit amplitude modulation input and a frequency-hopping selection mode. The board\'s operating frequency is between 1.2kHz and 3kHz, and the peak-controlled current ranges from >6A to 0.8A. Additionally, the driver uses fast-response, synchronous rectification, and low RDS (ON) integrated MOSFETs for efficient operation.

The STEVAL-ILL049V1 can be used for a variety of applications such as lighting systems, LED televisions, LED signage, LED street lamps, and LED backlighting. All of these applications require constant current drivers due to the complex nature of LED lighting. The STEVAL-ILL049V1 is designed to meet the demands of these applications, offering high efficiency and low EMI. Additionally, the board supports several pre-programmed lighting effects that can be used to customize the look and feel of LED driver applications.

The working principle of the STEVAL-ILL049V1 is based on the PFM control algorithm, which allows the board to reduce losses at power levels and frequencies above maximum AC mains. The controller allows the user to select the target frequency, which should correspond to the switching frequency of the LED driver. The amplitude modulation input is used to control the LED current, which is monitored and displayed on the board\'s LED current display.

The STEVAL-ILL049V1 is a powerful evaluation board for controlling LED systems. With its adjustable current, frequency-hopping selection mode, and pre-programmed lighting effects, the board provides users with an advanced platform for testing different LED system configurations. Furthermore, the board\'s low EMI and high efficiency enable it to provide an effective yet economical solution to LED lighting applications.

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