New Product Bulletin Compact Digital Color Sensor IC BH1745NUC Provides high-precision operation and superior spectral sensitivity characteristics in a compact form factor Product Outline The BH1745NUC I2C-compatible digital color sensor is designed to detect the color components (RGB) in light and convert them digitally. Superior spectral sensitivity, achieved through optimum infrared cutoff characteristics and original optical technology, makes it possible to calculate the color temperature and brightness with a high degree of accuracy - even through low-transmittance optical windows - contributing to greater design freedom. WSON008X2120 (2.0x2.1mm, t=0.6mm max.) ■ Proprietary optical filter technology ensures excellent spectral sensitivity ADC ADC VCC 100 SDA ADC Logic + PC Interface + INT Interface SCL ADDR INT TEST OSC POR Transmittance (%) ADC Standard Color Sensor B G R 100 Infrared Region 80 60 Significant Noise 40 20 Transmittance (%) GREEN BLUE ADC RED Spectral Sensitivity Characteristics CLEAR L gh ght Light Infrared Cutoff Filter Block Diagram ROHM’s New Color Sensor B G R Infrared Region 80 60 40 Low Noise 20 GND Key Characteristics • Supply Voltage Range: 2.3 to 3.6V • Max. Sensitivity: 0.005 lx/step • Operating Current Consumption: 130μA (Typ.) • Power Down Current Consumption: 0.8μA (Typ.) • Operating Temperature Range: -40 to +85°C 0 400 500 600 700 800 900 1000 1100 Wavelength (nm) 0 400 500 600 700 800 900 1000 1100 Wavelength (nm) Infrared cutoff filter and original optical technology provide superior infrared removal performance ■ Broad applicability Application Examples Brightness/color adjustment Improved design flexibility Detects ambient light conditions and automatically adjusts the color and brightness in LCDs for optimum results Provides greater design freedom for the optical windows in tablets and smartphones Process control in industrial applications Standard Color Sensor ROHM’s New High Accuracy Color Sensor Limited to high transmittance optical windows Compatible with even low transmittance optical windows 16th December,2014. .57F6860E 12.2014 Determine the colors of products and liquids in production lines