BH1715FVC-TR Rohm Semiconductor, BH1715FVC-TR Datasheet

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... Derating in done at 3.47mW/℃ for operating above Ta=25℃. ●Operating Conditions Parameter V Voltage Reference Voltage www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved bus interface. BH1715FVC is the most suitable to obtain the ambient 2 C slave-address. Symbol Ratings Vmax 4.5 Topr -40～85 Tstg -40～100 Imax ...

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... BH1715FVC ●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 L-Resolution Mode Resolution H-Resolution Mode Measurement Time L-Resolution Mode Measurement Time Incandescent / Fluorescent Sensor out ratio ADDR Input ‘ ...

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... BH1715FVC ●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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... BH1715FVC ●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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... BH1715FVC ●Instruction Set Architecture Instruction Power Down Power On Reset Continuously H-Resolution Mode Continuously L-Resolution Mode One Time H-Resolution Mode One Time L-Resolution Mode Change Measurement time (High bit) Change Measurement time (Low bit) ※ Don't input the other opecode. ●Measurement mode explanation ...

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... BH1715FVC ●Timing chart for VCC and DVI power supply sequence 2 DVI bus reference voltage terminal. And it is also asynchrono reset terminal necessary to set to 'L' after VCC is supplied. In DVI 'L' term, internal state is set to Power Down mode. 1) Recommended Timing chart1 for VCC and DVI supply. ...

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... BH1715FVC ●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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... SCL RESET ADDR DVI 0.1µF SDA GND BH1715FVC 1kOhm VCC SCL DVI ADDR 0.1µF SDA GND BH1715FVC VCC SCL ADDR DVI SDA V2 GND 0.1µF 8/16 Technical Note Micro Controller Reset IC( Push-Pull type ) RESET Reset IC( Open drain type ) 2010.06 - Rev.B ...

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... Rise time of power supply : 100µs or less 2.8V * Please do the application design to secure Reset section 1µs or more after the reclosing of the power supply. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved 1kOhm BH1715FVC VCC SCL ADDR DVI C1 : 1µF GND ...

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... Slave Address Slave Address is 2 types determined by ADDR Terminal ADDR = ‘H’ (ADDR ≧ 0.7V ADDR = 'L' (ADDR ≦ 0.3V 3)Write Format BH1715FVC is not able to accept plural command without stop condition. Please insert SP every 1 Opecode. ST Slave Address 4)Read Format ST Slave Address ...

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... BH1715FVC ●Adjust measurement result for influence of optical window. ( sensor sensitivity adjusting ) BH1715FVC 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 regisiter ) ...

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... C bus Interface SDA Terminal SDA, SCL Reference Voltage Terminal And DVI Terminal is also asynchronous Reset for internal registers.So that please set to 'L' (at least 150kOhm 1µs, DVI <= 0.4V) after V BH1715FVC is pulled down by 150kOhm while DVI = 'L bus Interface SCL Terminal 12/16 Technical Note ...

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... BH1715FVC ●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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... BH1715FVC ●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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... BH1715FVC ●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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... BH1715FVC ●Ordering part number Part No. Part No. 1715 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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