LTR-778ALS-BE Datasheet | LITEON

Description The LTR-778ALS-BE is an integrated low voltage I2C digital light sensor [ALS] 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. It provides a linear response over a wide dynamic range (0.005 lux to 12k lux) and is well suited to applications under high ambient brightness. With built-in proximity sensor (VCSEL emitter and detector), LTR-778ALS-BE offers the feature to detect object at a user configurable distance. This sensor features 2-level fault detection that allows further protection against un-intended VCSEL current trigger or surge caused by short circuit. The sensor supports an interrupt feature that removes the need to poll the sensor for a reading which improves system efficiency. The sensor also supports several features that help to minimize the occurrence of false triggering. This CMOS design and factory-set one time trimming capability ensure minimal sensor-to-sensor variations for ease of manufacturability to the end customers. Application To control display backlight and/or object detection in - Back-lighting Control in mobile/portable devices - Touch Panel Control in mobile/portable devices Ordering Information Part Number LTR-778ALS-BE Packaging Type Tape and Reel Features OPTICAL SENSOR LTR-778ALS-BE I2C interface (Fast Mode: 400kbit/s) Ultra-small Chip Led package Built-in temperature pensation circuit Low active power consumption with standby mode Supply voltage range from 2.7V to 3.6V capable of 1.7V logic voltage Operating temperature range from -30 ºC to +70ºC Ro HS and Halogen free pliant Light Sensor Close to human eye spectral response Immunity to IR / UV Light Source Automatically rejects 50 / 60 Hz lightings flicker 6 dynamic ranges (ALS gain settings) 16-bit effective resolution Proximity Sensor Built-in VCSEL driver, VCSEL emitter and detector with 2-level fault...