BH1715FVC-TR Rohm Semiconductor, BH1715FVC-TR Datasheet - Page 5

• Manufacturer Part Number: BH1715FVC-TR
• Description: Industrial Optical Sensors Ambient Light Sensor Digital 16Bit Serial
• Manufacturer: Rohm Semiconductor
• Type: Ambient Light Sensor with Digital Outputr
• Series: -r

Specifications of BH1715FVC-TR

• Product: Ambient Light Sensor
• Ic Function: Light To Digital Output Sensor
• Supply Voltage Range: 2.4V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SOP
• No. Of Pins: 6
• Supply Voltage Max: 3.6V
• Wavelength: 560nm
• Output Type: I²C™
• Package / Case: 6-WSOF Exposed Pad
• Interface Type: Serial, I2C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

●Instruction Set Architecture
●Measurement mode explanation
●Explanation of Asynchronous reset and Reset command "0000_0111"
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BH1715FVC
www.rohm.com
We recommend to use H-Resolution Mode.
Measurement time (integration time) of H-Resolution Mode is so long that some kind of noise(including in 50Hz / 60Hz noise)
is rejected. And H-Resolution Mode is 1 lx resolution so that it is suitable for darkness (less than 10 lx)
1) Asynchronous reset
2) Reset command
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.
All registers are reset. It is necessary on power supply sequence. Please refer "Timing chart for VCC and DVI power
supply sequence" in this page. It is power down mode during DVI = 'L'.
Reset command is for only reset Illuminance data register. (reset value is '0') It is not necessary even power supply
sequence. It is used for removing previous measurement result. This command is not working in power down mode, so
that please set the power on mode before input this command.
Measurement Mode
H-Resolution Mode
L-Resolution Mode
Instruction
01000_MT[7,6,5] Change measurement time.
011_MT[4,3,2,1,
0000_0000
0000_0001
0001_0000
0001_0011
0010_0000
0010_0011
0000_0111
Opecode
0]
Measurement Time.
Typ. 120ms.
Typ. 16ms.
No active state.
Waiting for measurement command.
Reset Data register value. Reset command is not acceptable in
Power Down mode.
Start measurement at 1lx resolution.
Measurement Time is typically 120ms.
Start measurement at 4lx resolution.
Measurement Time is typically 16ms.
Start measurement at 1lx resolution.
Measurement Time is typically 120ms.
It is automatically set to Power Down mode after measurement.
Start measurement at 4lx resolution.
Measurement Time is typically 16ms.
It is automatically set to Power Down mode after measurement.
Change measurement time.
※ Please refer "adjust measurement result for influence of optical window."
※ Please refer "adjust measurement result for influence of optical window."
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Comments
Resolution
1 Lx.
4 Lx.
Technical Note
2010.06 - Rev.B