BH1750FVI-TR Rohm Semiconductor, BH1750FVI-TR Datasheet - Page 4

• Manufacturer Part Number: BH1750FVI-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 BH1750FVI-TR

• Product: Ambient Light Sensor
• Wavelength: 560nm
• Output Type: I²C™
• Package / Case: 6-WSOF Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

●Block Diagram
●Block Diagram Descriptions
●Measurement Procedure
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BH1750FVI
www.rohm.com
・PD
・AMP
・ADC
・Logic + I
・OSC
State is automatically changed to
Power Down mode.
Photo diode with approximately human eye response.
Integration-OPAMP for converting from PD current to Voltage.
Ambient Light Calculation and I
Data Register → This is for registration of Ambient Light Data. Initial Value is "0000_0000_0000_0000".
Measurement Time Register → This is for registration of measurement time. Initial Value is "0100_0101".
Internal Oscillator ( typ. 320kHz ). It is CLK for internal logic.
AD converter for obtainment Digital 16bit data.
2
C Interface
One Time Measurement
PD
2
AMP
C BUS Interface. It is including below register.
Measurement Command
Power supply
Power Down
Power On
ADC
OSC
4/17
VCC
GND
Initial state is Power Down mode after
VCC and DVI supply.
Continuous Measurement
I
2
C Interface
Logic
ADDR
DVI
+
State Transition by I
Automatically State Transition
* "Power On" Command is possible to omit.
2
SCL
SDA
C write-command.
Technical Note
2010.04 - Rev.C