Description
LTR-91400 is an integrated low voltage I2C ambient light sensor [ALS], gesture sensor [GS] and proximity sensor [PS], with built-in emitter in a single miniature chipled lead-free surface mount package.
This sensor converts light intensity to a digital output signal capable of direct I2C interface. The gesture sensor provides object motion direction information based on the reflected IR light detected by the 4 photodiodes for East, West, North and South direction. Besides, ambient light sensor provides a linear response over a wide dynamic range and is well suited to applications under high ambient brightness. With built-in proximity sensor (emitter and detector), it offers the feature to detect object at a user configurable distance.

FEATUREs
• I2C interface (Standard mode @100kHz or Fast mode
   @400kHz)
• Gesture, Ambient Light, and Proximity Sensing in
   one ultra-small ChipLED package
• Very low power consumption with sleep mode
   capability
• Operating voltage ranges: 2.4V to 3.6V
• Operating temperature ranges: -30 to +70 ºC
• Programmable interrupt function for ALS, PS,
   and GS.
• Built-in temperature compensation circuit
• RoHS and Halogen free compliant

• GS Features
   ➢ 4 photodiodes for East, West, North and South
      direction
   ➢ 32 dataset storage FIFO
   ➢ 8-bit effective resolution
   ➢ Programmable LED drive settings
   ➢ Programmable crosstalk correction

• ALS Features
   ➢ 16-bits effective resolution
   ➢ Wide dynamic range of 1:15,000,000 with linear
      response
   ➢ Close to human eye spectral response
   ➢ Automatic rejection for 50Hz/60Hz lighting
      flicker

• PS Features
   ➢ Built-in LED driver and detector
   ➢ 11-bit effective resolution
   ➢ Programmable LED drive settings
   ➢ Programmable crosstalk correction
   ➢ High Ambient Light Suppression

APPLICATION
   To control brightness of the display panel, and/or detection of
   object or motion in mobile, computing, and consumer devices.