BH1721FVC-TR Rohm Semiconductor, BH1721FVC-TR Datasheet - Page 8

• Manufacturer Part Number: BH1721FVC-TR
• Description: Industrial Optical Sensors Ambient Light Sensor Digital 16bit Serial
• Manufacturer: Rohm Semiconductor
• Type: Ambient Light Sensor with Digital Outputr

Specifications of BH1721FVC-TR

• Product: Ambient Light Sensor
• Wavelength: 560nm
• Output Type: I²C™
• Package / Case: SOT-665
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

●Application circuit example of DVI terminal
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BH1721FVC
www.rohm.com
The DVI terminal is an asynchronous reset terminal. Please note that there is a possibility that IC doesn't operate normally if
the reset section is not installed after the start-up of VCC.
(Please refer to the paragraph of "Timing chart for VCC and DVI power supply sequence”)
The description concerning SDA and the terminal SCL is omitted in this application circuit example. Please design the
application the standard of the I
ex 1) The control signal line such as CPU is connected.
ex 2) Reset IC is used.
ex 3) A different power supply is used.
※ Power supply of DVI must stand up later than power supply of VCC stand up, because it is necessary to secure reset section ( 1µs or more ).
1, For Reset IC of the Push-Pull type
2, For Reset IC of the Open drain output
0.1µF
0.1µF
0.1µF
0.1µF
V1
2
C bus as it finishes being satisfactory.
BH1721FVC
BH1721FVC
BH1721FVC
BH1721FVC
GND
SDA
GND
SDA
GND
SDA
GND
SDA
VCC SCL
VCC SCL
VCC SCL
VCC SCL
0.1µF
0.1µF
0.1µF
0.1µF
DVI
DVI
DVI
DVI
8/15
1kΩ
0.1µF
V2
0.1µF
0.1µF
0.1µF
RESET
RESET
Micro
Controller
Reset IC( Push-Pull type )
Reset IC( Open drain type )
Technical Note
2010.02 - Rev.A