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Lite-On |
Optical Sensor
Product Data Sheet
LTR-556ALS-01
Spec No.: DS86-2015-0015
Effective Date: 11/11/2015
Revision: -
LITE-ON DCC
RELEASE
BNS-OD-FC001/A4
LITE-ON Technology Corp. / Optoelectronics
No.90,Chien 1 Road, Chung Ho, New Taipei City 23585, Taiwan, R.O.C.
Tel: 886-2-2222-6181 Fax: 886-2-2221-1948 / 886-2-2221-0660
http://www.liteon.com/opto
1. Description
Optical Sensor
LTR-556ALS-01
The LTR-556ALS-01 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 from 0.01 lux to 64k lux and is well
suited to applications under high ambient brightness. With built-in proximity sensor (emitter and detector), LTR-556ALS-01
offers the feature to detect object at a user configurable distance.
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.
2. Features
I2C interface (Fast Mode @ 400kbit/s)
Ultra-small ChipLED package
Built-in temperature compensation circuit
Low active power consumption with standby mode
Supply voltage range from 2.4V to 3.6V capable of 1.7V logic voltage
Operating temperature range from -30ºC to +70ºC
RoHS and Halogen free compliant
Light Sensor
Close to human eye spectral response
Immunity to IR / UV Light Source
Automatically rejects 50 / 60 Hz lightings flicker
6 dynamic range from 0.01 lux to 64k lux
16-bit effective resolution
Proximity Sensor
Built-in LED driver, emitter and detector
Programmable LED drive settings
11-bit effective resolution
High ambient light suppression
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Part No. : LTR-556ALS-01
BNS-OD-FC002/A4
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