TECHNICAL NOTE
Ambient Light Sensor IC Series
Digital 16bit Serial Output Type
Ambient Light Sensor IC
BH1715FVC
●
Descriptions
BH1715FVC is an digital Ambient Light Sensor IC for I
2
C 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) I
2
C 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 I
2
C slave-address.
11) Adjustable measurement result for influence of optical window ( It is possible to detect min. 0.33 lx, max. 100000 lx by
using this function. )
12)
Small measurement variation (+/- 15%)
●
Applications
Mobile phone, LCD TV, NOTE PC, Portable game machine, Digital camera, Digital video camera, Car navigation, PDA,
LCD display
●
Absolute Maximum Ratings
Parameter Symbol
Limits
Units
Supply Voltage
Vmax
4.5 V
Operating Temperature
Topr
-40
～
85
℃
Storage Temperature
Tstg
-40
～
100
℃
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 Symbol
Min.
Typ.
Max.
Units
VCC Voltage
Vcc
2.4
3.0
3.6
V
I
2
C Reference Voltage
VDVI
1.65
－
VCC V
June 2008
electronic components distributor
