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Compact Surface Mount Light Sensor LITEON LTR-329ALS-01 with I2C Digital Output and Six Gain Options

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Compact Surface Mount Light Sensor LITEON LTR-329ALS-01 with I2C Digital Output and Six Gain Options

Operating Temperature : -30℃~+70℃

Interface : I2C

Measurement Type : Light Intensity

Voltage - Supply : 2.4V~3.6V

Photoperceptivity : 64klx

Description : I2C 2.4V~3.6V VDFN-4 Ambient Light, IR, UV Sensors RoHS

Mfr. Part # : LTR-329ALS-01

Model Number : LTR-329ALS-01

Package : VDFN-4

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Product Overview

The LTR-329ALS-01 is a low voltage I2C digital light sensor (ALS) in a miniature 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), making it suitable for applications with high ambient brightness. It features six configurable gain settings (1X, 2X, 4X, 8X, 48X, and 96X). The CMOS design and factory-set trimming ensure minimal sensor-to-sensor variations. It is designed for applications such as controlling display backlights in mobile devices, computing devices, and consumer electronics, as well as dashboards.

Product Attributes

Brand: LITE-ON
Origin: Taiwan, R.O.C.
Package Type: 4-pins chipled package
Certifications: RoHS and Halogen free compliant

Technical Specifications

uA uA ms ms kHz us us us us us us us

Parameter	Symbol	Min.	Typ.	Max.	Unit	Condition
Supply Voltage	VDD	2.4		3.6	V
Interface Bus Power Supply Voltage	VIO	1.7		3.6	V
Operating Temperature	Tope	-30		70	C
Active Supply Current			250		Active Mode, Tope = 25C
Standby Current			5		Standby / Sleep Mode
Initial Startup Time		60	100	1000	(Note 1)
Wakeup Time from Standby			10		(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, Ch0, Lux = 200)		830	3250		count	Integration Time : 50ms, Measurement Time : 100ms
ADC Count (Gain=96, Ch1, Lux = 200)		1550	6100		count	Integration Time : 50ms, Measurement Time : 100ms
ALS Ratio		0.15	0.35		Ratio	Ratio = Ch1/(Ch1 + Ch0), Lux = 200 (White LED)
SCL clock frequency	SCL f	1		400
Bus free time between STOP and START	BUF t	1.3
Hold time (repeated) START condition	STA HD t	0.6
LOW period of the SCL clock	LOW t	1.3
HIGH period of the SCL clock	HIGH t	0.6
Set-up time for repeated START condition	STA SU t	0.6
Set-up time for STOP condition	STO SU t	0.6
Rise time of SDA and SCL	rt	30		300	ns
Fall time of SDA and SCL	ft	30		300	ns
Data hold time	DAT HD t	0.3	0.9
Data setup time	DAT SU t	100			ns
Pulse width of spikes to be suppressed	SP t	0	50		ns
I2C Slave Address			0x29H
Register Set Addr: ALS_CONTR	0x80				R/W	ALS operation mode control, SW reset
Register Set Addr: ALS_MEAS_RATE	0x85				R/W	ALS measurement rate in active mode
Register Set Addr: PART_ID	0x86				R	Part Number ID and Revision ID
Register Set Addr: MANUFAC_ID	0x87				R	Manufacturer ID
Register Set Addr: ALS_DATA_CH1_0	0x88				R	ALS measurement CH1 data, lower byte
Register Set Addr: ALS_DATA_CH1_1	0x89				R	ALS measurement CH1 data, upper byte
Register Set Addr: ALS_DATA_CH0_0	0x8A				R	ALS measurement CH0 data, lower byte
Register Set Addr: ALS_DATA_CH0_1	0x8B				R	ALS measurement CH0 data, upper byte
Register Set Addr: ALS_STATUS	0x8C				R	ALS new data status

2410121535_LITEON-LTR-329ALS-01_C284894.pdf

Quality Compact Surface Mount Light Sensor LITEON LTR-329ALS-01 with I2C Digital Output and Six Gain Options for sale

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