The digital illuminometer is composed of an integrated light sensor (ISL76683), OLED display and a cap-touch keypad. It can be used to monitor the lux value of a variety of lighting conditions. The OLED display method can be controlled with touch key input, while the LED brightness also can be changed as a function of ambient light changes.

Optimized for handheld applications, this design incorporates the RA2A1 microcontroller, which with its analog support, can simply implement USB charging of a Li-ion battery. Voltage and current can be monitored and controlled with real-time feedback, while charging mode can be adjusted as required.

System Benefits

  • Four lux sensitivity ranges provided automatically, LED brightness also can be changed
  • MCU-based lithium battery management, which includes pre-charging, CC, CV charging mode, overcurrent, overvoltage, and overheating protection
System Block Diagram

Digital Illuminometer

Winning Combinations

Renesas and IDT’s complementary product portfolios work together to deliver comprehensive solutions to our customers. This is just the beginning, with the combination of the Renesas and IDT development teams, there will more integrated solutions that provide significant advantages over traditional solutions.

See the benefits immediately with our “Winning Combinations” solutions