STEVAL-ILL085V1

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Current - Output / Channel:	700mA
Outputs and Type:	1, Non-Isolated
Voltage - Output:	60 V ~ 105 V
Features:	Dimmable
Voltage - Input:	90 ~ 300 VAC
Supplied Contents:	Board(s)
Utilized IC / Part:	HVLED001A

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Introduction

STEVAL-ILL085V1 Evaluation Board is an LED Driver designed and developed by STMicroelectronics. It is based on the STM32L151C6 microcontroller and STOS2030 DC-DC LED driver IC. It integrates a 16-bit PWM LED dimming interface and a LED output current monitor. It also supports both DC and AC LED loads, and has a minimum LED output current resolution of 0.2%.

Applications

The primary application of the STEVAL-ILL085V1 evaluation board is for driving high-brightness LEDs and LED strips in mobile and handheld TVs, TVs, and other displays. The board is easily scalable and supports both AC and DC LED strings, making it suitable for applications requiring a multiple LED output current. In addition, the low resolution makes it suitable for lighting applications with low dimming resolution requirements.

Working Principle

The STEVAL-ILL085V1 evaluation board works by converting an input power source (Vin) into a regulated output voltage (Vout) that powers the LEDs. This regulated output voltage is controlled using 16-bit PWM signals with a resolution of 0.2%. The board also supports an LED output current monitor with a sensitivity of 1mA. The STM32L151C6 microcontroller on the STEVAL-ILL085V1 board is the main controller that controls the PWM signals and monitors the output current of the LEDs. This microcontroller also enables an adjustable dimming cycle and multiple adjustable levels of brightness. The STOS2030 DC-DC LED driver IC is the other component of the STEVAL-ILL085V1 evaluation board. It is responsible for controlling the output current of the LEDs and providing power in both AC and DC applications. This IC also provides a low-noise and low-power solution for applications with high resolution LED dimming.

Conclusion

The STEVAL-ILL085V1 evaluation board is a highly versatile LED driver suitable for a wide range of LED lighting applications. Its main component, the STM32L151C6 microcontroller, provides high resolution PWM LED dimming, adjustable dimming cycle, and multiple adjustable levels of brightness. The STOS2030 DC-DC LED driver IC enables the board to support multiple LED output current levels and both AC and DC LED loads. Overall, the STEVAL-ILL085V1 evaluation board is an excellent solution for LED driver applications.

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