Datasheet Ambient Light Sensor IC Series Digital 16bit Serial Output Type Color Sensor IC BH1749NUC General Description Key Specifications 2 BH1749NUC is a digital color sensor IC with I C bus VCC Voltage Range: 2.3 V to 3.6 V (Note 1) interface. This IC senses Red, Green, Blue (RGB) and Illuminance Detection Range : 80 klx (Typ) Infrared and converts them to digital values. The high Current Consumption: 190 A (Typ) sensitivity, wide dynamic range and excellent Ircut Power Down Current: 0.8 A (Typ) characteristics make it possible for this IC to obtain the Operating Temperature Range: -40 C to +85 C (Note 1) White LED is used. accurate illuminance and color temperature of ambient light. It is ideal for adjusting LCD backlight of TV, mobile Package(s) W(Typ) x D(Typ) x H(Max) phone and tablet PC. WSON008X2120 2.10 mm x 2.00 mm x 0.6 mm Features Built-in Ircut Filter Rejecting 50 Hz / 60 Hz Light Noise 2 I C Bus Interface (f/s mode support) 2 It is possible to select 2 type of I C bus slave address. Correspond to 1.8 V Logic Interface Resolution 0.0125 lx/count (Typ) (In highest gain and longest measurement time setting) Applications Mobile Phone, Tablet PC, Note PC, Digital Camera WSON008X2120 Portable Game Machine, LCD TV Typical Application Circuits 0.1 A VCC PD ADC Micro PD ADC Logic SDA Controller + or SCL 2 ADC I C Interface PD + Baseband INT INT Interface Processor PD ADDR ADC TEST OSC POR GND Product structureSilicon monolithic integrated circuit. This product has no designed protection against radioactive rays. This product does not include laser transmitter. This product does not include optical load. This product includes Photo detector, ( Photo Diode ) inside of it. www.rohm.com TSZ02201-0M3M0F017020-1-2 2017 ROHM Co., Ltd. All rights reserved. 1/16 TSZ22111 14 001 20.Dec.2017 Rev.002 BH1749NUC Pin Configuration TOP VIEW ADDR NC 1 8 VCC 7 INT 2 GND 3 6 SDA 4 5 TEST SCL Pin Description Pin No. Pin Name Function 2 1 ADDR I C bus slave address selector (Note 1) 2 VCC Power supply 3 GND Ground 4 TEST Test pin (Connect to GND) 2 SCL I C bus serial clock 5 2 6 SDA I C bus serial data 7 INT Interrupt 8 NC Non connect (Note 1) Dispose a bypass capacitor as close as possible to the IC Block Diagram VCC PD ADC PD ADC Logic SDA + 2 SCL ADC I C Interface PD + INT INT Interface PD ADDR ADC TEST OSC POR GND Description of Blocks IRCUT FILTER Infrared cut filter RED, GREEN, BLUE, IR Red, Green, Blue, Infrared pass filter PD Photodiode ADC Analog-to-Digital Converter for obtaining 16bit digital data. 2 ADC Logic + I C Interface + INT Interface ADC control logic and I/F logic OSC Clock generator for internal logic POR Power ON Reset. All registers are reset after VCC is supplied. www.rohm.com TSZ02201-0M3M0F017020-1-2 2017 ROHM Co., Ltd. All rights reserved. 2/16 20.Dec.2017 Rev.002 TSZ22111 15 001