Digital 16bit Serial Output Type Ambient Light Sensor IC

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.

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Product Detail

Part Number | BH1726NUC-E2
Status | Recommended
Package | WSON008X2120
Unit Quantity | 4000
Minimum Package Quantity | 4000
Packing Type | Taping
RoHS | Yes


Sensor Type

Digital ALS





Output Type


illuminance Measurement Range[lx]

0 to 30, 000

Sensitivity Variations[%]


Operating Temperature (Min.)[°C]


Operating Temperature (Max.)[°C]



  • Built-in Ircut filter
  • 2 outputs with different spectral response
  • Correspond to dark window because of high sensitivity
  • Rejecting 50Hz/60Hz light noise
  • I²Cbus 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)

Design Resources



White Paper

  • Growth of Medical Sensors & Electronic Components Demand Due To Covid-19

Technical Articles

Schematic Design & Verification

  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance



  • WSON008X2120 Footprint / Symbol

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)