BH1710FVC-TR Rohm Semiconductor, BH1710FVC-TR Datasheet

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... Ambient Light Sensor ICs Digital 16bit Serial Output Type Ambient Light Sensor IC BH1710FVC ●Descriptions BH1710FVC is an digital Ambient Light Sensor IC for I light data for adjusting LCD and Keypad backlight power of Mobile phone possible to detect wide range at High resolution 65535 lx). ●Features bus Interface ( Mode Support) ...

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... BH1710FVC ●Electrical Characteristics(V = 3.0V, DVI = 3.0V 25℃, unless otherwise noted) CC Parameter Supply Current Powerdown Current Peak Wave Length Measurement Accuracy Dark (0 lx) Sensor out H-Resolution Mode Resolution M-Resolution Mode Resolution L-Resosution Mode Resolution H-Resolution Mode Measurement Time M-Resolution Mode Measurement Time ...

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... BH1710FVC ●Reference Data 1.2 1 0.8 0.6 0.4 0.2 0 400 500 600 700 800 900 1000 1100 Wavelength [ nm ] Fig.1 Spectral Response 1.2 1 1pin 0.8 受信指向角特性 0.6 0 0.2 0 -90 -60 - Angle [ deg ] Fig.4 Directional Characteristics 1 1.2 1 0.8 0.6 ...

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... BH1710FVC ●Block Diagram PD ●Block Diagram Descriptions ●PD Photo diode with approximately human eye response. ●AMP Integration-OPAMP for converting from PD current to Voltage. ●ADC AD converter for obtainment Digital 16bit data. 2 ●Logic + I C Interface Ambient Light Calculation and I Data Register → This is for registration of Ambient Light Data. Initial Value is "0000_0000_0000_0000". ...

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... BH1710FVC ●Instruction Set Architecture Instruction Power Down Power On Reset Continuously H-Resolution Mode Continuously M-Resolution Mode Continuously L-Resolution Mode One Time H-Resolution Mode One Time M-Resolution Mode One Time L-Resolution Mode Change Measurement time (High bit) Change Measurement time (Low bit) ※ Don't input the other opecode. ...

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... BH1710FVC ●Explanation of Asynchronous reset and Reset command "0000_0111" 1) Asynchronous reset All registers are reset necessary on power supply sequence. Please refer "Timing chart for VCC and DVI power supply sequence" in this page power down mode during DVI = 'L'. 2) Reset command Reset command is for only reset Illuminance data register. (reset value is '0 not necessary even power supply sequence ...

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... BH1710FVC ●Measurement sequence example from "Write instruction" to "Read measurement result" ex1) Continuously H-resolution mode (ADDR = 'L') from Master to Slave ① Send "Continuously H-resolution mode " instruction ST 0100011 ② Wait to complete 1st H-resolution mode measurement.(max. 180ms.) ③ Read measurement result 0100011 How to calculate when the data High Byte is "10000011" and Low Byte is "10010000" ...

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... VCC SCL DVI ADDR 0.1µF SDA GND BH1710FVC 1kOhm VCC SCL DVI ADDR 0.1µF SDA GND BH1710FVC VCC SCL ADDR DVI SDA V2 GND 8/16 Technical Note Micro Controller RESET Reset IC( Pµsh-Pull type ) RESET Reset IC( Open drain type ) 0.1µF ...

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... VCC turn off (VCC <= 0.05V), because it is necessary to secure reset section (1µs or more). Rise time of power supply : 100µs or less 2.8V www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. and DVI 1kOhm BH1710FVC VCC SCL ADDR DVI C1 : 1µF GND SDA ...

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... Slave Address is 2 types determined by ADDR Terminal ADDR = ‘H’ (ADDR ≧ 0.7VCC) → “1011100“ ADDR = 'L' (ADDR ≦ 0.3VCC) → “0100011“ 3) Write Format BH1710FVC is not able to accept plural command without stop condition. Please insert SP every 1 Opecode. ST Slave Address 4) Read Format ...

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... BH1710FVC ●Adjust measurement result for influence of optical window. (sensor sensitivity adjusting ) BH1710FVC is possible to change sensor sensitivity. And it is possible to cancel the optical window influence (difference with / without optical window) by using this function. Adjust is done by changing measurement time. For example, when transmission rate of optical window is 50% (measurement result becomes 0.5 times if optical window is set), influence of optical window is ignored by changing sensor sensitivity from default to 2 times Sensor sensitivity is shift by changing the value of MTreg (measurement time register) ...

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... C bus Interface SDA Terminal SDA, SCL Reference Voltage Terminal And DVI Terminal is also asynchronous Reset 150kOhm for internal registers.So that please set to 'L' (at least 1µs, DVI <= 0.4V) after VCC is supplied. BH1710FVC is pulled down by 150kOhm while DVI = 'L bus Interface SCL Terminal 12/16 ...

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... BH1710FVC ●Package Outlines ●About an optical design on the device 0.8 mm Min.0.4 mm Min.0.4 mm Min.0.4 mm Min.0.4 mm www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Lot No. Production code 1 area ( 0. 0 Please design the optical window so that light can cover at least this area. 13/16 Technical Note WSOF6 ( Unit : mm ) 2010 ...

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... BH1710FVC ●The method of distinguishing 1pin There is some method of distinguishing 1pin. ① Distinguishing by 1Pin wide-lead ② Distinguishing by die pattern ③ Distinguishing by taper part of 1-3pin side ② (by die pattern) is the easiest method to distinguish by naked eye. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ...

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... BH1710FVC ●Cautions on use 1) Absolute Maximum Ratings An excess in the absolute maximum ratings, such as supply voltage (Vmax), temperature range of operating conditions (Topr), etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including the use of fuses, etc ...

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... BH1710FVC ●Ordering part number Part No. Part No. 1710 WSOF6 1.6±0.1 (MAX1.8 include BURR (1. 1PIN MARK 0.3 S 0.08 S 0.5 0.22±0.05 0.08 M www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved Package FVC: WSOF6 <Tape and Reel information> Tape Embossed carrier tape Quantity ...

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