TMD27253M

TMD27253M is an ALS and small aperture proximity sensor module. The device features advanced proximity measurement and digital ambient light sensing (ALS). The package has been designed to accommodate a single small aperture approach. The slim module incorporates an IR LED and factory-calibrated LED driver. The proximity detection feature provides object detection (e.g. mobile device screen to user’s ear) by photodiode detection of reflected IR energy (sourced by the integrated LED). Detect/release events are interrupt-driven, and occur when proximity result crosses upper and/or lower threshold settings. The proximity engine features offset adjustment registers to compensate for unwanted IR energy reflection at the sensor. Proximity results are further improved by automatic ambient light subtraction. The application includes ambient light sensing, single-hole proximity sensing, and mobile phone touch screen disable.

• Small aperture requirements, 1.055mm emitter to detector distance
• Single device integrated optical solution
• ALS + proximity, 2mm x 3.65mm x 1mm, integrated IR LED
• Power management features, I²C fast mode interface compatible
• Accurate ambient light sensing, photopic ambient light sensor (ALS)
• UV / IR blocking filters, programmable gain and integration time
• Reduced power consumption, 1.8V power supply with 1.8V I²C bus, 39h I²C Address
• VDD supply range from 1.7 to 2.0V
• Oscillator frequency is 8.107MHz typ (VDD = 1.8V, TA = 25°C)
• OLGA-8 package, operating free-air temperature from -30 to 85°C