STEVAL-ILL051V1

Series:	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Current - Output / Channel:	3A
Moisture Sensitivity Level (MSL):	--
Outputs and Type:	1, Non-Isolated
Voltage - Output:	--
Features:	Dimmable
Voltage - Input:	3 V ~ 18 V
Supplied Contents:	Board(s)
Utilized IC / Part:	LED2000

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Introduction

STEVAL-ILL051V1 is an evaluation board for LED drivers based on the STLED-CTRL1, which is a high-performance and cost-effective current controller. It provides the ideal platform for the evaluation and development of a wide range of LED lighting applications. This application board is designed for drivers with current ranges of up to 5A and can be used for a wide range of applications from surge current control (e.g. for LED street lights) to low-power LED accent lighting.

Functionality

The STEVAL-ILL051V1 evaluation board features an internal power MOSFET with a maximum temperature protection of 120 °C, and a digitally controlled power supply. It provides a configurable open-loop DC/DC sub-circuit, including a maximum current trip point, a MOSFET based slew rate control and circuitry for simultaneous synchronization of multiple drivers. The board also has a built-in temperature sensor that monitors the MOSFET temperature and provides over-temperature protection. An optional RJ45 connector is included for interfacing with the STM32F031K6 MCU for the direct control of the MOSFET.In addition, the STEVAL-ILL051V1 has an optional SPI interface for a color control circuit, and includes a display with a user interface to manage up to four channels (strings) of LEDs. There are also on-board connectors for a power supply, current control signal, and temperature protection signal.

Operation of the System

The STEVAL-ILL051V1 system is based on the buck-boost topology and is designed to manage the LED strings with an LED driving current range of 0.5A-5A. The system can operate in open-loop, closed-loop, and single loop modes. The open-loop mode is suitable for applications with fewer LEDs and limited requiring on current accuracy. In closed-loop mode, the driver maintains close precision control of the LED driving current, providing excellent power efficiency and uniform brightness. The single-loop mode is used when more than one LED channel needs to be controlled, providing uniform current sharing between the channels.The system also has built-in protection and monitoring features, such as temperature protection, LED string protection and LED open/short circuit protection. In addition, the STEVAL-ILL051V1 is equipped with an integrated timer, which allows the user to centrally control multiple LED channels or daisy-chained LED strings.

Conclusion

The STEVAL-ILL051V1 evaluation board is a powerful and low-cost solution for a wide range of LED lighting applications. It features an integrated MOSFET and a built-in temperature sensor, along with a host of other features such as open-loop, closed-loop, and single-loop modes, adjustable maximum current trip points, over-temperature protection, and centrally managed multiple LED channels or daisy-chained LED strings. STEVAL-ILL051V1 provides an ideal platform for the evaluation and rapid development of LED lighting applications.

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