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부품번호 | BH1772GLC 기능 |
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기능 | 1 Chip Optical Proximity Sensor + Ambient Light Sensor IC | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 30 페이지수
Ambient Light Sensor ICs
1 Chip Optical Proximity Sensor +
Ambient Light Sensor IC
BH1772GLC
No.11046EBT12
●Descriptions
BH1772GLC is the IC into which optical proximity sensor and digital ambient light senor are unified. Proximity sensor part
detects the human or object approach by reflection of infrared LED(IrLED) light. Ambient light sensor part can detect the
wide range illuminance from the dark up to under direct sun light. The illuminant intensity of LCD display and keypad can be
adjusted, so lower current consumption or higher visibility are possible.
●Features
1) Correspond to I2C bus interface ( f/s mode & Hs mode support )
2) Low Current by power down function
3) Correspond to 1.8V logic interface
4) ALS spectral responsibility is approximately human eye response ( Peak wavelength : typ. 550nm )
5) Correspond to wide range of light intensity ( 1-65535 lx range )
6) Rejecting 50Hz/60Hz light noise (ALS function)
7) Detection range of proximity sensor is around 10 - 100mm (configurable by I2C bus)
8) Built in ambient light cancelation (Proximity sensor function)
9) Built in configurable IrLED current driver
●Applications
Mobile phone, DSC, Portable game, Camcoder, Car navigation, PDA, LCD display etc.
●Absolute Maximum Ratings ( Ta = 25℃ )
Parameter
Symbol
Ratings
VCC, Supply Voltage
SDA,SCL,GNDNC Terminal Voltage
LEDC,INT Terminal Voltage
Vccmax
VSDAmax, VSCLmax,
VGNDNCmax
VLEDCmax, VINTmax
4.5
4.5
7
Operating Temperature
Topr -40~85
Storage Temperature
Tstg -40~100
SDA, INT Sink Current
Imax
7
Power Dissipation
Pd 250※
※ 70mm × 70mm × 1.6mm glass epoxy board. Decreasing rate is 3.33mW/℃ for operating above Ta=25℃
Units
V
V
V
℃
℃
mA
mW
●Operating Conditions
Parameter
VCC Voltage
LEDC Terminal Voltage
Symbol
Vcc
Vledc
Ratings
Min. Typ. Max.
2.3 2.5 3.6
0.7 2.5 5.5
Units
V
V
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© 2011 ROHM Co., Ltd. All rights reserved.
1/30
2011.06 - Rev.B
BH1772GLC
●Package outlines
A
C
Production code
Lot No.
Technical note
WLGA010V28
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
4/30
2011.06 - Rev.B
4페이지 BH1772GLC
Technical note
●I2C bus communication
1) Slave address "0111000"
2) Main write format
1. Case of “Indicate register address”
ST
Slave Address
0111000
W
0
ACK
Indicate register address
010XXXXX
2. Case of "write to data register after indicating register address"
ST
Slave Address
0111000
W
0
ACK
Indicate register address
010XXXXX
ACK SP
ACK
Data specified at register address
field
ACK
・・・・・・
ACK
Data specified at register address
field + N
ACK
SP
BH1772GLC continues to write data with address increments until master issues stop condition.
Write cycle is 40h - 41h - 42h - 43h - 44h - 45h - 46h – 52h ……… 5Dh – 5Eh - 40h ………
Ex ) If register address field is 45h, then BH1772GLC writes data like seeing in below.
45h - 46h -52h ……… 5Dh – 5Eh - 40h………It is continued until master issues stop condition.
3) Main read format
1. Case of read data after indicate register address and read data ( Master issues restart condition )
ST
Slave Address
0111000
W
0
ACK
Indicate register address
010XXXXX
ACK
ST
Slave Address
0111000
R
1
ACK
Data specified at register address
field
ACK
Data specified at register address
field + 1
ACK
・・・・・・
ACK
Data specified at register
address field + N
NACK SP
2. Case of read data after selecting register address
ST
Slave Address
0111000
R
1
ACK
Data specified at register address
field
ACK
Data specified at register address
field + 1
ACK
・・・・・・
ACK
Data specified at register address
field + N
NACK
SP
BH1772GLC outputs data from specified address field until master issues stop condition.
Read cycle is 40h - 41h - 42h - 43h - 44h - 45h - 46h – 4Ah ……… 5Dh – 5Eh - 40h ………
Ex ) If register address field is 4Ch, then BH1772GLC outputs data like seeing in below.
4Ch - 4Dh -4Eh ……… 5Dh – 5Eh - 40h………It is continued until master issues stop condition.
from master to slave
from slave to master
※ BH1772GLC operates as I2C bus slave device.
※ Please refer formality I2C bus specification of NXP semiconductors
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
7/30
2011.06 - Rev.B
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다운로드 | [ BH1772GLC.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
BH1772GLC | 1 Chip Optical Proximity Sensor + Ambient Light Sensor IC | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |