ROHM Ambient Light Sensor(ALS) ICs are designed to detect the brightness over a wide range, from, from darkness to direct sunlight, and output the data in order to adjust LCD or Lighting brightness for optimum visibility and lower power consumption. The lineup is offered in different output types (i.e. current, comparator, digital) for maximum compatibility.
Advantages of ROHM analog ALS:
- Uniform sensitivity regardless of light source.
- Internal processing is performed on the multiple
built-in photodiodes (featuring different junction depths),
resulting in stable output sensitivity with little difference
among variation light sources.
- Output current which is proportionate to the light
- Built-in shutdown function.
- Wide output range.
- Output gain switching via mode-setting terminal.
Advantage of new ROHM ALS, BH1620FVC and BH1621FVC:
=> Ultra small WSOF5 (1.6*1.6*0.55mm) package contributes to
miniaturize the mounting space on the printed circuit board.
BH1620/21 Specification:
- Supply Voltage: 2.4 to 5.5 V.
- 1.8V logic input interface.
- Output Type: Current(Source).
- Sensitivity Variations: ±15 %.
- Illuminance Measurement: Range 0-100000 lx
- Output Sensitivity Gain: 3 or 2 step.
- Package size: 1.6×1.6×0.55 mm.
