Digital 16bit Serial Output Type Ambient Light Sensor IC - BH1721FVC

Digital output type ambient light sensor IC is composed of photodiodes, current-voltage converter circuit, A / D converter, control logic circuits, interface circuits and etc.It connects with I²C Bus in an equipment.

Evaluation Board
* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BH1721FVC-TR Active WSOF5 3000 3000 Taping Yes
Sensor Type Digital ALS
Vcc(Min.)[V] 2.4
Vcc(Max.)[V] 3.6
Output Type I2C
illuminance Measurement Range[lx] 0 to 65, 000
Sensitivity Variations[%] ±15
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・Correspond to I²C bus interface (f / s Mode Support)
    ・Spectral responsibility is approximates human eyes response (Peak Wave Length : typ.560nm)
    ・Illuminance to digital converter
    ・Correspond to wide range of light intensity (1-65528lx range)
    ・Low Current by power down function
    ・Rejecting 50Hz / 60Hz light noise enables a more stable sensing
    ・Correspond to 1.8V logic interface
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Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

NE Handbook Series

Sensor Networks