New BH1771GLC enables smart screen operation

ROHM Semiconductor ICs meet market needs for greener, more user-friendly sensing devices that provide greater interactivity with lower power consumption. In particular, ROHM's monolithic optical proximity sensor + digital ambient light sensor IC is ideally suited for portable products of all types, especially sets requiring touchless motion control.

The BH1771GLC integrates an LED driver in the proximity sensor block for driving 3 peripheral infrared LEDs. A receiver block in the sensor IC utilizes time division light emission to detect the light reflected off of people and objects and analyzes the phase difference. Simply connect the IC to device screens to detect movement a number of cm above the sensor IC. BH1771GLS is the  ideal solution for any application requiring touchless motion sensing.

BH1771GLC IC samples now available!

Typical Features:
- Shutdown, measurement interval,
  and proximity detection sensitivity set via I2C
- Compact 2.8×2.8×0.9mm package: WLGA010V28

<Proximity sensor block>
- Touchless motion detection function
- Digital 8bit output (I2C)
- Detection distance: 10 - 100mm (set via I2C)
- IrLED current driver built in
- Sunlight cancelling circuit built in
- Measurement interval range: 10ms - 2000ms

<ALS>
- Digital 16bit output
- Reduced sensitivity variation (±15%)
- Measurement interval can be set between
  100ms and 2000ms