Ambient Light Sensor ICs Analog Current Output Type Ambient Light Sensor IC No.12046EDT04 BH1600FVC Descriptions BH1600FVC is an analog current output ambient light sensor. BH1600FVC is the most suitable to obtain the ambient light data for adjusting LCD and Keypad backlight of Mobile phone for power saving and better visibility Features 1) Compact surface mount package 3.0 1.6 mm 2) Spectral sensitivity close to human eyes sensitivity. 3) Output current in proportion to brightness. 4) Minimum supply voltage 2.4V 5) Built-in shutdown function 6) 2 steps controllable output current gain. 7) 1.8V logic input interface Applications Mobile phone, LCD TV, PDP TV, Laptop PC, Portable game console, Digital camera, Digital video camera, PDA, LCD display Absolute Maximum Ratings Parameter Symbol Limits Units Supply Voltage Vmax 4.5 V Operating Temperature Topr -30 85 Storage Temperature Tstg -40100 Iout Current Ioutmax 7.5 mA Power Dissipation Pd 260 mW 70mm 70mm 1.6mm glass epoxy board. Derating at 3.47mW/ for operating above Ta=25. Operating Conditions Parameter Symbol Min. Typ. Max. Units VCC Voltage Vcc 2.4 3.0 3.6 V Electrical Characteristics ( VCC = 3.0V, Ta = 25, unless otherwise noted ) Parameter Symbol Min. Typ. Max. Units Conditions Supply Current Icc1 39 64 90 A Ev=100 lx ( H-Gain Mode ) Shutdown Current Icc2sd - 0.01 0.2 A VGC1=VGC2=0 No Input Light Dark Current Idark - - 0.1 A Ev=0 lx Light Current Iout 39 60 81 A Ev=100 lx ( H-Gain Mode ) Peak Wave Length p - 560 - nm Incandescent/Fluorescent rIF - 1.0 - timesEv=100 lx Light Current Ratio Ev=100 lx, RL=220k Saturated Output Voltage Vomax 2.6 2.9 3.0 V ( H-Gain Mode ) GC1, GC2 Input L Voltage VIL 0 - 0.4 V GC1,GC2 Input H Voltage VIH 1.4 - Vcc V Shutdown H-Gain Mode Wake-up Time twu - 64 128 s Ev=100lx Gain Ratio - 9.5 10 timesEv=100 lx H-Gain Mode / L-Gain Mode White LED is used as optical source www.rohm.com 2012.02 - Rev.D 1/8 2012 ROHM Co., Ltd. All rights reserved. Technical Note BH1600FVC Reference Data 1.2 100000 Fluorescent Light 10000 1 Incandescent 1000 H-Gain Light 0.8 100 Halogen Light 10 0.6 L-Gain Kripton Light 1 0.4 0.1 Artifical Sun Light 0.2 0.01 White LED 0.001 0 0.001 1 100 10,000 1,000,000 400 500 600 700 800 900 1000 1100 00.5 11.5 2 Ratio Illuminance lx Wavelength nm Fig.2 Light Source Dependency Fig.3 Illuminance IOUT Fig.1 Spectral Response (Fluorescent Light is set to 1 ) Characteristics 1.2 1.2 100 1 1 10 1pin 0.8 0.8 - + 1 - 0.6 0.6 H-Gain 1pin 0.1 - L-Gain 0.4 0.4 - + 0.01 + 0.2 0.2 SD + 0.001 0 0 -30 0 30 60 90 -90 -60 -30 0 30 60 90 -90 -60 -30 0 30 60 90 Ta Angle deg Angle deg Fig.4 Directional Characteristics 1 Fig.6 Ta IOUT (0 lx) Fig.5 Directional Characteristics 2 100 1.4 1.4 1.2 1.2 10 1 1 1 0.8 0.8 H-Gain 0.6 0.6 0.1 0.4 0.4 L-Gain 0.01 0.2 0.2 SD 0.001 0 0 -30 0 30 60 90 -30 0 30 60 90 2 2.5 3 3.5 4 Ta Ta VCC V Fig.7 Ta ICC (0 lx) Fig.8 IOUT Temperature dependency(100 lx) Fig.9 IOUT VCC dependency 10000 1000 L-Gain 100 10 H-Gain 1 100 1000 10000 Illuminance lx Fig.10 Illuminance Wake up Time www.rohm.com 2012.02 - Rev.D 2/8 2012 ROHM Co., Ltd. All rights reserved. Ratio ICC uA WakeupTime us Ratio Ratio Ratio IOUT uA Ratio IOUT uA