STEVAL-TLL013V1

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STEVAL-TLL013V1 which belongs to the family of Evaluation Boards - LED Drivers, is a fully integrated two channel driving board with four PWM dimmable white LEDs reference design. Based on coherent optical communication control like the Bluetooth Low Energy Classic, it is designed to demonstrate the capability of the TLC59116. The featured components include an Optical Beacon for inductive charging and MEMS microphone for controlling brightness by voice.

Application field

With the STEVAL-TLL013V1, NXP is helping customers understand how LED Driver technologies and others options work, so customers can create optimal LED lighting systems and applications. This evaluation board is an excellent choice for anyone looking to optimize LED lighting systems and tasks in their organizations. Moreover, STEVAL-TLL013V1 is an ideal solution to drive 4 white LEDs or RGB LEDs with individually adjustable current, brightness, and intesity by PWM or by varying the clock frequency.

It supports industry standard protocols such as a master / slave connection and I2C communication, allowing the two channels to work together or independently as required. Additionally, the optical SIC beacon is an embedded system that enables wireless power transfer to re-charge a battery, making it ideal for migrating lighting applications from expensive to cost effective.

Working principle

The STEVAL-TLL013V1 follows the same system-on-chip (SoC) architecture as other NXP Evaluation Boards - LED Drivers. The TLC59116 is the main driving part for the system and consists of DC-DC converters, Charge-Pump VREG, PWM dimmable drivers and shunt current regulation for each channel. The TLC59116 will receive the input power from the rectified AC mains and convert it to a high efficiency DC-DC step down buck boosting regulator.

The buck boosting regulators can support up to 19V Vin and 5V Vo respectively. The DC-DC converter is usually used to provide a relatively stable voltage across the LEDs. It also can generate PWM signals or through adjust the clock frequency to provide dimming.

The suite also contains the opticon beacon sense which allows the board to detect wireless power and the MEMs microphone, adds sound-control over the LEDs brightness. The driver core is controlled by the TLC59116, which can be configured over the I2C bus with SCL and SDA pins. The LED driver will be connected using I2C bus to the master device.

Conclusion

The STEVAL-TLL013V1 offers an optimized solution for applications requiring a fully integrated driving board with four PWM dimmable white LEDs. This board demonstrates NXP\'s capability in driving LEDs by an embedded solution, and its versatility in controlling brightness by PWM and varying clock frequency. In addition, features like opticon beacon sense and MEMS microphone can be used for recharging battery and for sound control in lighting applications.

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