BH1715FVC-TR Rohm Semiconductor, BH1715FVC-TR Datasheet - Page 11

• 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

● Adjust measurement result for influence of optical window.
ex ) Case of transmission rate is 50%.
Supported Mtreg value is seeing below.
For example BH1715FVC is possible to detect min. 0.33 lx when Mtreg value is “1111_1110” at H-Resolution mode.
Supported value ( hex )
BH1715FVC is including in adjust measurement result function for influence of optical window. Adjust is done by changing
measurement time. For example, if transmission rate by optical window is 1 / N, then adjust is done by measurement time is
set to "initial value * N".
Measurement time register ( Mtreg ) is 8bit register. Initial value is "0100_0101" ( 45xh ). Please change this register value
via to I
Please change Mtreg value from "0100_0101" to "1000_1010".
1) Changing High bit of Mtreg
2) Changing Low bit of Mtreg
3) Input Measurement Command.
4) After about 240ms, measurement result is registered to Data Register. ( High Resolution mode is typically 120ms, but
measurement time is set twice. )
ST
ST
ST
2
C Bus interface.
Slave Address
Slave Address
Slave Address
( transmission rate 153% )
0010_1101
※ This example is High Resolution mode, but it accepts the other measurement.
Min.
R/W
R/W
R/W
0
0
0
Ack
Ack
Ack
11 / 15
( transmission rate 100% )
0100_0101
Typ.
01000_100
0001_0000
011_01010
( transmission rate 27.2% )
1111_1110
Max
Ack
Ack
Ack
SP
SP
SP