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BH1772GLC Datasheet(PDF) 1 Page - Rohm |
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BH1772GLC Datasheet(HTML) 1 Page - Rohm |
1 / 31 page 1/30 www.rohm.com 2011.06 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. Ambient Light Sensor ICs 1 Chip Optical Proximity Sensor + Ambient Light Sensor IC BH1772GLC ● Descriptions BH1772GLC is the IC into which optical proximity sensor and digital ambient light senor are unified. Proximity sensor part detects the human or object approach by reflection of infrared LED(IrLED) light. Ambient light sensor part can detect the wide range illuminance from the dark up to under direct sun light. The illuminant intensity of LCD display and keypad can be adjusted, so lower current consumption or higher visibility are possible. ● Features 1) Correspond to I 2C bus interface ( f/s mode & Hs mode support ) 2) Low Current by power down function 3) Correspond to 1.8V logic interface 4) ALS spectral responsibility is approximately human eye response ( Peak wavelength : typ. 550nm ) 5) Correspond to wide range of light intensity ( 1-65535 lx range ) 6) Rejecting 50Hz/60Hz light noise (ALS function) 7) Detection range of proximity sensor is around 10 - 100mm (configurable by I 2C bus) 8) Built in ambient light cancelation (Proximity sensor function) 9) Built in configurable IrLED current driver ● Applications Mobile phone, DSC, Portable game, Camcoder, Car navigation, PDA, LCD display etc. ●Absolute Maximum Ratings ( Ta = 25℃ ) Parameter Symbol Ratings Units VCC, Supply Voltage Vccmax 4.5 V SDA,SCL,GNDNC Terminal Voltage VSDAmax, VSCLmax, VGNDNCmax 4.5 V LEDC,INT Terminal Voltage VLEDCmax, VINTmax 7 V Operating Temperature Topr -40~85 ℃ Storage Temperature Tstg -40~100 ℃ SDA, INT Sink Current Imax 7 mA Power Dissipation Pd 250※ mW ※ 70mm × 70mm × 1.6mm glass epoxy board. Decreasing rate is 3.33mW/℃ for operating above Ta=25℃ ●Operating Conditions Parameter Symbol Ratings Units Min. Typ. Max. VCC Voltage Vcc 2.3 2.5 3.6 V LEDC Terminal Voltage Vledc 0.7 2.5 5.5 V No.11046EBT12 |
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