STEVAL-ILL049V12

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The STEVAL-ILL049V12 is an evaluation board from the LED driver family. The board integrates all the necessary components to enable the evaluation of a constant current LED driver in a bridge-mode application for resistive and inductive loads. The board will prove to be valuable for professionals in automotive, home and industrial automation, sign light, architectural and decorative lighting, etc.

The STEVAL-ILL049V12 can be applied in different applications, as long as they need a constant current to drive one or two white LEDs. It can also be used to control RGB LEDs or other LED lamps, as long as an adequate power supply is used to drive all of the LEDs. This evaluation board works with two input and output voltage levels, both in the range of 4 to 18 volts. Additionally, it is compatible with both AC and DC input supplies.

The STEVAL-ILL049V12 offers several key features for LED driver applications. It supports constant current LED drive and Bridge-Mode topology to provide maximum safety in the event of output short-circuit. Furthermore, LED current can be thermally controlled to maintain LED junction temperature in a safe range, as well as optical feedback compensation for a constant output current. Additionally, the board has a protection circuit for exceeding the LED current, over voltage, and over temperature protection.

The device\'s working principle is based on its lowest operating frequency and off-time regulation operating mode. The working frequency can be programmed through an external potentiometer, making it compatible with all kinds of loads, while the off-time is configured by two external capacitors. This allows the LED current to be set precisely, maintaining LED junction temperature in a safe range, and regulating output current when LED intensity changes occur.

The STEVAL-ILL049V12 also boasts of several additional features. It has a high tolerance protection function designed to reduce EMI (electromagnetic interference) and power loss, as well as a thermal shutdown that occurs when junction temperature reaches 150°C. It also features two output bridges with a series parallelling GPIO line, which monitors output current (for both bridges separately), providing the user with enhanced security in the event of a short circuit.

The STEVAL-ILL049V12 is an excellent choice for evaluation and prototype purposes. It provides a practical solution for applications in the fields of automotive, home and industrial automation, sign light, architectural and decorative lighting, as well as other commercial lighting applications. Its features make it an easy to use, efficient, and secure option for professionals.

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