The digital addressable lighting interface (DALI) is a lighting control protocol for intelligent lighting systems. The DALI system is widely used in commercial lighting control and building lighting control. The DALI 2.0 standard improves the ability to control brightness, glare, color rendering, and presence detection, and adds multi-vendor interoperability to the DALI standard, IEC 62386. It also introduces standardization of control devices, such as application controllers and input devices.

Renesas provides both DALI and DALI 2.0 control/communication software. In this reference design, Renesas features the RL78/G12, RL78/G13, RL78/I1A, and Synergy S128 Series microcontrollers (MCUs). In addition to highly integrated MCUs, the design also features an LED driver, power components, light sensors, and proximity sensors for DALI 2.0, as well as transceivers/receivers for the host computer interface. 

System Benefits:

  • The RL78/I1A is a one-chip solution for DALI, PWM dimming controls and voice control
  • The ISL97901 is an red, green, blue, and white (RGBW) light driver with a maximum output of 1.5A
  • Includes the ISL29035/ISL29125 light sensor and the ISL29501 presence detection sensor
  • Highly integrated power components and RS-232 interface support


Related Products

Product Description Featured Document Ordering
RL78/I1A Microcontrollers that output high-resolution PWM for fine dimming and toning of LED lighting Datasheet Select Specific Device
Light Sensor      
ISL29035 Integrated Digital Light Sensor with Interrupt Datasheet Buy/Sample
ISL29125 Digital Red, Green and Blue Color Light Sensor with IR Blocking Filter Datasheet Buy/Sample
Proximity Sensor      
ISL29501 Time of Flight (ToF) Signal Processing IC Datasheet Buy/Sample
PS2561F-1 DIP Photocoupler, Operating Ambient Temperature 110 °C Datasheet Buy/Sample
LED Driver      
ISL97901 RGB Buck-Boost 4-Channel LED Driver with Color Sequencing and Automatic White Balance Datasheet Buy/Sample
RS-232 Transmitter/Receiver      
ICL3221E ±15kV ESD Protected, +3V to +5.5V, 1µA, 250kbps, RS-232 Transmitters/Receivers Datasheet Buy/Sample
Buck Regulator      
ISL85413 Wide VIN 300mA Synchronous Buck Regulator Datasheet Buy/Sample