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PDF BH1726NUC Data sheet ( Hoja de datos )
| Número de pieza | BH1726NUC | |
| Descripción | Digital 16bit Serial Output Type Ambient Light Sensor IC | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
Ambient Light Sensor IC Series
Digital 16bit Serial Output Type
Ambient Light Sensor IC
BH1726NUC
General Description
BH1726NUC is a digital Ambient Light Sensor IC with I2C
bus interface. This IC is most suitable for obtaining
ambient light data for adjusting LCD and backlight power
of TV and mobile phone. It is capable of detecting a very
wide range of illuminance.
Key Specifications
■ VCC Voltage Range:
2.3V to 3.6V
■ Detection Range:
30klx (Typ)
■ Current Consumption:
75μA (Typ)
■ Power Down Current:
0.8μA (Typ)
■ Operating Temperature Range: -40°C to +85°C
Features
Built-in Ircut filter
2 outputs with different spectral response
Correspond to dark window because of high sensitivity
Rejecting 50Hz/60Hz light noise
I2C bus interface (f/s mode support)
It is possible to select 2 type of I2C bus slave address.
Correspond to 1.8V logic interface
Resolution 0.0003lx/count (Typ)
(In highest gain and longest measurement time setting)
Package(s)
WSON008X2120
W(Typ) x D(Typ) x H(Max)
2.10mm x 2.00mm x 0.6mm
Applications
Mobile Phone, Tablet PC, Note PC, Portable Game
Machine, LCD TV, Digital Camera
WSON008X2120
Typical Application Circuits
0.1uF
VCC
AMP
PD0
AMP
PD1
ADC ADC Logic
+
I2C Interface
+
INT Interface
ADC
OSC
POR
ADDR TEST GND
SCL
SDA
INT
Micro
Controller
or
Baseband
Processor
〇Product structure：Silicon monolithic integrated circuit.
〇This product has no designed protection against radioactive rays.
〇This product does not include laser transmitter.
〇This product does not include optical load.
〇This product includes Photo detector, ( Photo Diode ) inside of it.
.www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
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TSZ02201-0M3M0F616020-1-2
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1 page  
BH1726NUC
I2C Bus Timing Characteristics (Unless otherwise specified VCC = 2.5V, Ta = 25°C)
SDA
S : START
VIL
VIH
VIL
S : Repeated START
VIH
VIL
tSU;DAT
tHD;STA
P : STOP
VIH
VIL
tBUF
S : START
VIH
SCL
VIH
VIL
VIL
VIH
VIL
VIH VIH
VIH
VIH
tHD;STA
tLOW
tHD;DAT
tHIGH
tSU;STA
tSU;STO
Parameter
SCL Clock frequency
‘L’ Period of the SCL Clock
‘H’ Period of the SCL Clock
Setup Time for Repeated START
Hold Time for START
Data Setup Time
Data Hold Time
Setup Time for STOP
Bus Free Time between STOP and START
I2C Bus Communication
1. Write Format
(1) Indicate register address
S Slave Address
W
0
Symbol
fSCL
tLOW
tHIGH
tSU;STA
tHD;STA
tSU;DAT
tHD;DAT
tSU;STO
tBUF
ACK
Min Typ Max
0 - 400
1.3 -
-
0.6 -
-
0.6 -
-
0.6 -
-
100 -
-
0- -
0.6 -
-
1.3 -
-
Register Address or
Special Command
Unit Conditions
kHz
µs
µs
µs
µs
ns
µs
µs
µs
ACK P
(2) Write data after indicating register address
S
Slave Address
W
0
ACK
Register Address
ACK
Data specified at register
address field
ACK ••• ACK
Data specified at register
address field + N
2. Read Format
(1) Read data after indicating register address (Master issues restart condition)
S
Slave Address
W
0
ACK
Register Address
ACK
ACK P
S
Slave Address
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 P
(2) Read data from the specified register
S Slave Address
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 P
from master to slave
from slave to master
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/16
TSZ02201-0M3M0F616020-1-2
28.Apr.2016 Rev.001
5 Page 
BH1726NUC
I/O Equivalent Circuit
Pin Name
ADDR
Equivalent Circuit
VCC
VCC
TEST
SCL
VCC
SDA
INT
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/16
TSZ02201-0M3M0F616020-1-2
28.Apr.2016 Rev.001
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet BH1726NUC.PDF ] | |
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