Datasheet Ambient Light Sensor IC Series Digital 16bit Serial Output Type Ambient Light Sensor IC BH1730FVC General Description Key Specifications 2 BH1730FVC is a digital Ambient Light Sensor IC with I C Supply Voltage Range: 2.4V to 3.6V 2 bus interface. This IC is most suitable for obtaining I C I/O Voltage: 1.65V to V V CC ambient light data for adjusting LCD and backlight power Detection Range: 0.001 lx to 100k lx of TV and mobile phone. It is capable of detecting a very Current Consumption: 150 A (Typ) wide range of illuminance. Power Down Current: 0.85 A (Typ) Operating Temperature Range: -40C to +85C Features 2 I C bus Interface Package W(Typ) x D(Typ) x H(Max) f/s Mode Support, Slave Address0101001 WSOF6 1.60mm x 3.00mm x 0.75mm 2 outputs with peak wavelengths of visible light and infrared light respectively. Illuminance to digital converter Low current by power down function 50Hz / 60Hz light noise reject function Light source dependency is small by the calculation using 2 outputs. (e.g. Incandescent lamp, Fluorescent lamp, Halogen lamp, White LED and Sun light) Built-in interrupt function Sensitivity adjustment function for compensation for illuminance decrease by optical window WSOF6 Applications LCD TV, Mobile Phone, Tablet PC, Note PC, Digital Camera, Portable Game Machine Typical Application Circuit 0.1uF 0.1uF VCC DVI V DVI AMP ADC SCL ADC Logic + PD for visible light 2 SDA Micro I C Interface Controller + or INT Interface AMP Baseband ADC INT Processor PD for infrared light 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 itw ww.rohm.com TSZ02201-0M3M0F616050-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/20 8.Jun.2016 Rev.001 TSZ2211114001 BH1730FVC Pin Configuration TOP VIEW 1 SCL 6 VCC 2 DVI 5 INT 3 SDA 4 GND Pin Description Pin No. Pin Name Function 1 VCC Power supply terminal INT pin output terminal. 2 INT If not in use, connect to GND or leave it open. 3 GND GND terminal 2 4 SDA I C bus interface SDA terminal 2 5 DVI I C bus I/O voltage 2 6 SCL I C bus interface SCL terminal Block Diagram DVI VCC AMP ADC SCL ADC Logic + PD for visible light 2 SDA I C Interface + INT Interface AMP ADC INT PD for infrared light OSC POR GND Description of Blocks 1. PD Photo diodes (PD) with peak wavelengths of visible light and infrared light respectively. 2. AMP Integrating AMP for converting PD current to voltage. 3. ADC Analog-to-Digital Converter for obtaining 16bit digital data. 2 4. ADC Logic + I C Interface + INT Interface ADC control logic and I/F logic interface. 5. OSC Oscillator for clock of internal logic. 6. POR Power ON Reset. Please refer toPower ON Sequenc on P14. www.rohm.com TSZ02201-0M3M0F616050-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/20 8.Jun.2016 Rev.001 TSZ2211115001