LED Driver Delivers Enhanced Lighting Effects

STMicroelectronics’ LED1202 12-channel LED driver enables smooth and natural interactions with smart-home devices, wearable electronics, and small appliances.

The component can store eight programmable patterns and sequences and operate independently of the main controller, enabling the host system to save power while lighting effects run continuously. Its 12-bit internal PWM dimming enables precision control of programmed sequences and the main controller can set 8-bit values for analog dimming via the driver’s I2C interface. Minimal external components are required to complete the driver circuit.

 

SENSORS EXPO & CONFERENCE

Sensors 2019 Hits Silicon Valley June 25-27!

Join 7,000+ engineers this June in San Jose at the sensor industry’s biggest event! With 65+ Technical Sessions, 100+ Leading Speakers, 10 new and updated tracks, and 300+ Interactive Exhibits, there’s more opportunity than ever to connect with this booming industry and the technologies driving it. See thousands of the newest technologies in action, learn about the latest applications, and develop invaluable partnerships at the only event dedicated to sensors, connectivity, and systems.

With 12 output channels, a single LED1202 can drive four RGB LEDs at 20 mA per channel. A synchronization feature allows connecting to eight LED1202 drivers to control larger LED arrays. In addition, low-current channel matching, within 2% (typical) at 2.5 mA is said to enhance color consistency. Phase shifting between channels minimizes current ripple and prevents excessive peak demand. Safety features include open-LED detection, over-temperature protection, and a fault-flag pin.

 

Available now, the LED1202JR in a 1.71 mm x 2.16 mm WLCSP-20 flip-chip is $0.90 each/1,000 and the LED1202QTR in a 3 mm x 3 mm VFQFPN-20 is $1.15 each/1,000. The STEVAL-LLL007V1 evaluation kit is also available. For deeper knowledge, procure and peruse the LED1202JR datasheet.

Suggested Articles

True plug-and-play interoperability for IoT is a reality.

Material is capable of micro-second self-healing from high-velocity punctures across a wide range of temperatures.

ams´ unique laser array brings industry-first solid-state LiDAR system to Ibeo and ZF