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BH1750FVI の電気的特性と機能

BH1750FVIのメーカーはROHM Semiconductorです、この部品の機能は「Digital 16bit Serial Output Type Ambient Light Sensor IC」です。


製品の詳細 ( Datasheet PDF )

部品番号 BH1750FVI
部品説明 Digital 16bit Serial Output Type Ambient Light Sensor IC
メーカ ROHM Semiconductor
ロゴ ROHM Semiconductor ロゴ 




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BH1750FVI Datasheet, BH1750FVI PDF,ピン配置, 機能
Ambient Light Sensor IC Series
Digital 16bit Serial Output Type
Ambient Light Sensor IC
BH1750FVI
No.11046EDT01
Descriptions
BH1750FVI is an digital Ambient Light Sensor IC for I2C bus interface. This IC is the most suitable to obtain the ambient light
data for adjusting LCD and Keypad backlight power of Mobile phone. It is possible to detect wide range at High resolution.
( 1 - 65535 lx ).
Features
1) I2C bus Interface ( f / s Mode Support )
2) Spectral responsibility is approximately human eye response
3) Illuminance to Digital Converter
4) Wide range and High resolution. ( 1 - 65535 lx )
5) Low Current by power down function
6) 50Hz / 60Hz Light noise reject-function
7) 1.8V Logic input interface
8) No need any external parts
9) Light source dependency is little. ( ex. Incandescent Lamp. Fluorescent Lamp. Halogen Lamp. White LED. Sun Light )
10) It is possible to select 2 type of I2C slave-address.
11) Adjustable measurement result for influence of optical window
( It is possible to detect min. 0.11 lx, max. 100000 lx by using this function. )
12) Small measurement variation (+/- 20%)
13) The influence of infrared is very small.
Applications
Mobile phone, LCD TV, NOTE PC, Portable game machine, Digital camera, Digital video camera, PDA,
LCD display
Absolute Maximum Ratings
Parameter
Symbol
Ratings
Units
Supply Voltage
Vmax
4.5
V
Operating Temperature
Topr
-4085
Storage Temperature
Tstg -40100
SDA Sink Current
Imax 7 mA
Power Dissipation
Pd
260
mW
70mm × 70mm × 1.6mm glass epoxy board. Derating in done at 3.47mW/for operating above Ta=25.
Operating Conditions
Parameter
VCC Voltage
I2C Reference Voltage
Ratings
Symbol
Units
Min. Typ. Max.
Vcc 2.4 3.0 3.6 V
VDVI
1.65
-
VCC
V
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/17
2011.11 - Rev.D

1 Page





BH1750FVI pdf, ピン配列
BH1750FVI
Reference Data
1.2
1
0.8
0.6
0.4
0.2
0
400 500 600 700 800 900 1000
Wavelength [ nm ]
Fig.1 Spectral Response
1100
1.2
1
1pin
0.8 - +
0.6
0.4
-+
0.2
0
-90 -60 -30
0
30 60 90
Angle [ deg ]
Fig.4 Directional Characteristics 1
1.2
1
0.8
0.6
0.4
0.2
0
-40 -20 0 20 40 60 80 100
Ta [ ]
Fig.7 Measurement Accuracy
Temperature Dependency
10
1
0.1
0.01
-40 -20 0 20 40 60 80 100
Ta [ ]
Fig.10 VCC – ICC@0 Lx
( POWER DOWN )
64
56
48
40
32 HH-R-Reess..
24
L-Res.
16
8 L-Res.
0
0
1.2
8 16 24 32 40 48 56 64
Illuminance [ lx ]
Fig.2 Illuminance -
Measurement Result 1
1
0.8
0.6 -
0.4 - 1pin
0.2 +
0+
-90 -60 -30 0 30 60 90
Angle [ deg ]
Fig.5 Directional Characteristics 2
Fluorescent
Light
Incandescent
Light
Halogen
Light
Kripton Light
Artifical Sun
Light
White LED
0 0.5 1 1.5 2
Ratio
Fig.8 Light Source Dependency
( Fluorescent Light is set to '1' )
1.2
1
DVI=1.8V
0.8
0.6
0.4
0.2
0
2 2.5 3 3.5 4
VCC [ V ]
Fig.11 Measurement Result
VCC Dependency
Technical Note
100000
10000
1000
100
10
1
1 10 100 1000 10000 100000
Illuminance [ lx ]
Fig.3 Illuminance -
Measuremnet Result 2
10
8 蛍光灯白熱灯感度比
6
4
2
H-Res.
0
-40 -20 0 20 40 60 80 100
Ta [ ]
Fig.6 Dark Response
200
150
100
50
0
2 2.5 3 3.5 4
VCC [ V ]
Fig.9 VCC - ICC
( During measurement )
1.2
1
VCC=3V
0.8
0.6
0.4
0.2
0
1.5 2 2.5 3 3.5
DVI [ V ]
Fig.12 Measurement Result
DVI Dependency
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
3/17
2011.11 - Rev.D


3Pages


BH1750FVI 電子部品, 半導体
BH1750FVI
Technical Note
Timing chart for VCC and DVI power supply sequence
DVI is I2C bus reference voltage terminal. And it is also asynchronous reset terminal. It is 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.
VCC
DVI
Reset Term ( more than 1us )
2) Timing chart2 for VCC and DVI supply.
( If DVI rises within 1µs after VCC supply )
VCC
DVI
Reset Term ( more than 1us )
Don't care state
ADDR, SDA, SCL is not stable if DVI 'L' term ( 1us ) is not given by systems.
In this case, please connect the resisters ( approximately 100kOhm ) to ADDR without directly
connecting to VCC or GND,
because it is 3 state buffer for Internal testing.
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
6/17
2011.11 - Rev.D

6 Page



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部品番号部品説明メーカ
BH1750FVI

Digital 16bit Serial Output Type Ambient Light Sensor IC

ROHM Semiconductor
ROHM Semiconductor


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