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Compact Lead Free Light Sensor LITEON LTR-303ALS-01 Suitable for High Ambient Brightness Applications

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Compact Lead Free Light Sensor LITEON LTR-303ALS-01 Suitable for High Ambient Brightness Applications

Length : 2mm

Width : 2mm

Operating Temperature : -30℃~+70℃

Interface : I2C

Measurement Type : Light Intensity

Voltage - Supply : 2.4V~3.6V

Photoperceptivity : 64klx

Description : I2C 2.4V~3.6V DFN-6(2x2) Ambient Light, IR, UV Sensors RoHS

Mfr. Part # : LTR-303ALS-01

Model Number : LTR-303ALS-01

Package : DFN-6(2x2)

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Product Overview

The LTR-303ALS-01 is a low-voltage I2C digital light sensor (ALS) housed in a miniature, lead-free surface-mount package. It converts light intensity into a digital output signal with a direct I2C interface. This sensor offers a linear response across a wide dynamic range (0.01 lux to 64k lux) and is suitable for applications with high ambient brightness. It features six configurable gain settings (1X, 2X, 4X, 8X, 48X, and 96X) and an interrupt function to improve system efficiency by eliminating the need for constant polling. Its CMOS design and factory-set trimming minimize sensor-to-sensor variations. Applications include back-lighting and touch panel control in mobile/portable devices.

Product Attributes

Brand: LITE-ON
Origin: Taiwan, R.O.C.
Certifications: RoHS and Halogen free compliant

Technical Specifications

Parameter	Min.	Typ.	Max.	Unit	Condition
Supply Voltage	2.4		3.6	V
Interface Bus Power Supply Voltage	1.7		3.6	V
I2C Bus Input Pin High Voltage (SCL, SDA)	1.2			V
I2C Bus Input Pin Low Voltage (SCL, SDA)			0.6	V
Operating Temperature	-30		70	C
Active Supply Current		220		uA	Active Mode, Ta = 25C, VDD=3.6V, Integration Time: 100ms, Measurement rate: 200ms
Standby Current		5		uA	Standby / Sleep Mode
Initial Startup Time		100		ms	(Note 1)
Wakeup Time from Standby		10		ms	(Note 1)
Full Scale ADC Count		65535		count
Dark ADC Count (Ch0, Lux = 0)	0		6	count
Dark ADC Count (Ch1, Lux = 0)	0		6	count
ADC Count (Gain=96) @200Lux (Ch0)	3250	6100		count	White LED 200 Lux, Integration Time: 50ms, Measurement Time: 100ms
ADC Count (Gain=96) @200Lux (Ch1)	1050	1950		count	White LED 200 Lux, Integration Time: 50ms, Measurement Time: 100ms
Ratio Ch1/(Ch0 + Ch1)	0.15	0.35
SCL Clock Frequency	1		400	kHz	I2C Fast Mode
Bus Free Time (tBUF)	1.3			us	Between STOP and START condition
Hold Time (tSTA)	0.6			us	Repeated START condition
LOW Period of SCL Clock (tLOW)	1.3			us
HIGH Period of SCL Clock (tHIGH)			0.6	us
Set-up Time for Repeated START (tSU:STA)	0.6			us
Set-up Time for STOP Condition (tSU:STO)	0.6			us
Rise Time (tRT)	30		300	ns	SDA and SCL signals
Fall Time (tFT)	30		300	ns	SDA and SCL signals
Data Hold Time (tHD:DAT)	0.3	0.9		us
Data Set-up Time (tSU:DAT)	100			ns
Pulse Width of Spikes (tSP)	0		50	ns	To be suppressed by input filter

2410121607_LITEON-LTR-303ALS-01_C364577.pdf

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