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PDF BH1780GLI Data sheet ( Hoja de datos )
| Número de pieza | BH1780GLI | |
| Descripción | Digital 16bit Serial Output Type Ambient Light Sensor IC | |
| Fabricantes | ROHM Semiconductor | |
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Ambient Light Sensor IC Series
Digital 16bit Serial Output Type
Ambient Light Sensor IC
BH1780GLI
No.09046EAT08
● Descriptions
BH1780GLI 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 & Hs mode Support, Slave address : "0101001" ）
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) Small measurement variation (+/- 20%)
11) The influence of infrared is very small.
● 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 120※ mW
※ 70mm × 70mm × 1.6mm glass epoxy board. Derating in done at 1.6mW/℃ for operating above Ta=25℃.
● Operating Conditions
Parameter
VCC Voltage
Symbol Min. Typ. Max. Units
Vcc 2.3 2.5 3.0 V
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/13
2009.11 - Rev.A
1 page  
BH1780GLI
● Command Set
Address
--
0h
Ah
Bh
Ch
Dh
Register name
COMMAND
CONTROL
PART ID
MANUFACTURE ID
DATALOW
DATAHIGH
Register function
Specifies register address
Control of basic functions
Part ID
Manufacture ID
Low byte of ADC
High byte of ADC
Technical Note
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○ Command Register
7 6 5 4 321
CMD
XXX
ADDRESS
default value 00h
0
Field
Bit Description
CMD
7 Write 1
XXX
Write "000"
6 : 4 Don't care if ADDRESS( Command Register< 3 : 0 > ) is
"0h" or "Ah" or "Bh" or "Ch" or "Dh".
ADDRESS 3 : 0 Register address
○ Control Register ( 0h )
7
RES
6
RES
5
RES
432
RES RES RES
default value 00h
10
POWER
Field
RES
POWER
Bit Description
7 : 2 Write "000000"
"00" : Power down
1:0
"01" : Resv
"10" : Resv
"11" : Power up
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
5/13
2009.11 - Rev.A
5 Page 
BH1780GLI
● Package Outlines
Technical Note
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● Recommended Land pattern ( Top view )
43
12
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
11/13
2009.11 - Rev.A
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet BH1780GLI.PDF ] | |
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