ams OSRAM TMD2635 IR Proximity Detection Modules

ams OSRAM TMD2635 IR Proximity Detection Modules are 2-in-1 ultra-small proximity detection modules in an optical land grid array package. The TMD2635 proximity sensor module incorporates a 940nm IR VCSEL and is factory calibrated for IR proximity response. The proximity detection feature provides nearby object detection using photodiode detection of reflected IR energy sourced by an integrated VCSEL emitter. The TMD2635 modules offer advanced crosstalk noise cancellation through a wide range of offset adjustments to compensate for unwanted IR energy reflection at the sensor. These sensor modules optimize sensitivity, power consumption, and noise. Typical applications include true-wireless stereo earbuds, display backlight control, and optical switches.


  • Ideal for the smallest size applications
  • Enables accurate and stable measurements behind highly diffusive and spectrally distorting materials in low-light-level environments
  • Compensates for unwanted ambient light photodiode current
  • Enables an additional device to reside on the I2C bus with 0x38
  • Enhances industrial design flexibility of sensor apertures sizes and shapes (1.5mm circular or 1mm x 2mm oval)
  • Reduces overall system power consumption
  • Reduced board space requirements and enables low-profile system design
  • Proximity crosstalk compensation and ambient light cancellation
  • Automatic single alternative I2C address option
  • Split near/far photodiodes and offset emitter/detector placement


  • True-wireless stereo earbuds, glasses, and watches
  • Display backlight control
  • Optical switches


  • 940nm IR proximity with automatic ambient light subtraction
  • 0.18µm process technology with 1.8V I2C
  • 1.7V to 2.0V supply voltage range to the sensor
  • 2.9V to 3.6V supply voltage range to the IR emitter
  • ±100mA minimum input current
  • 7.9MHz to 8.3MHz oscillator frequency range
  • 197μA to 482μA active state supply current
  • 30μA typical idles state supply current
  • 0.7μA sleep state supply current
  • <5cm recommended operating distance
  • 50mW maximum power dissipation, 20mW average
  • ±5μA leakage current
  • -30°C to +85°C operating ambient temperature range
  • 5% to 85% relative humidity, non-condensing
  • 2mm x 1mm x 0.5mm small footprint and low profile package


Block Diagram - ams OSRAM TMD2635 IR Proximity Detection Modules
Published: 2019-11-19 | Updated: 2023-07-11