参数资料
型号: BH1750FVI-TR
厂商: Rohm Semiconductor
文件页数: 4/20页
文件大小: 0K
描述: IC AMBIENT LIGHT SENSOR WSOF6
特色产品: Ambient Light Sensor ICs
标准包装: 1
带接近传感器:
波长: 560nm
电源电压: 2.4 V ~ 3.6 V
输出类型: I²C?
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 6-SMD,扁平引线裸焊盘
包装: 标准包装
其它名称: BH1750FVI-DKR
BH1750FVI-DKR-ND
BH1750FVIDKR
BH1750FVI
● Block Diagram
VCC
DVI
Technical Note
I C Interface
AMP
ADC
2
Logic
+
SCL
SDA
PD
OSC
GND
ADDR
? Logic + I C Interface
● Block Diagram Descriptions
? PD
Photo diode with approximately human eye response.
? AMP
Integration-OPAMP for converting from PD current to Voltage.
? ADC
AD converter for obtainment Digital 16bit data.
2
Ambient Light Calculation and I 2 C BUS Interface. It is including below register.
Data Register → This is for registration of Ambient Light Data. Initial Value is "0000_0000_0000_0000".
Measurement Time Register → This is for registration of measurement time. Initial Value is "0100_0101".
? OSC
Internal Oscillator ( typ. 320kHz ). It is CLK for internal logic.
● Measurement Procedure
Power supply
State is automatically changed to
Power Down mode.
One Time Measurement
Initial state is Power Down mode after
VCC and DVI supply.
Power Down
Power On
Measurement Command
Continuous Measurement
State Transition by I 2 C write-command.
Automatically State Transition
*
"Power On" Command is possible to omit.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
4/17
2011.11 - Rev.D
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