LTR-578ALS-01 光宝小孔三合一传感器

The LTR-578ALS-01 is an integrated low voltage I2C ambient light sensor (ALS), and proximity sensor (PS), with built-inemitter in a single miniature chipled lead-free surface mount package.

The ALS provides a linear response over a wide dynamic range, which is well suited to applications under very low orbright ambient brightness. Besides, with built-in proximity sensor, this sensor offers the feature to detect object at a user configurable distance.

The sensor has a programmable interrupt with hysteresis to response to events and that removes the need to poll thesensor for a reading which improves system efficiency. This CMOS design and factory-set one time trimming capability ensure minimal sensor-to-sensor variations for ease of manufacturability to theend customers.

2.   Features

· I²C interface (Standard mode @100kHz or Fast mode @400kHz)

· Ambient Light and Proximity Sensing in one ultra-small ChipLED package

· Very low power consumption with sleep mode capability

· Operating voltage ranges: 1.7V to 3.6V

· Operating temperature ranges: -40 to +85 ºC

· Built-in temperature compensation circuit

· Programmable interrupt function for ALS and PS with upper and lowerthresholds

· RoHS and Halogen free compliant

ALS Features

^Ø   16 to 20 bits effective resolution

^Ø    Wide dynamic range with linear response

^Ø    Close to human eye spectral response

^Ø    Automatic rejection for 50Hz/60Hz lightingflicker

PS Features

^Ø   Built-in LED driver and detector

^Ø    High ambient light suppression

^Ø    8 , 9, 10, 11-bit(selectable) effectiveresolution

^Ø    Cancellation of crosstalk

^Ø    Programmable LED drive settings