LTR-507ALS-01 Integrated I2C Digital Ambient Light Sensor and Proximity Sensor

LTR-507ALS-01 Ambient Light Sensor and Proximity Sensor Description
The LTR-507ALS-01 is an integrated I2C digital light sensor [ALS] and proximity sensor [PS] with built-in LED driver, in a miniature chipled lead-free surface mount package. This device converts light intensity to a digital output signal capable of direct I2C interface. It provides a linear response over a wide dynamic range and is well suited to applications under high ambient brightness. With built-in proximity sensor, LTR-507ALS-01 offers the feature to detect object at a user configurable distance of typical 50cm Gray Card.

The device supports an interrupt feature that removes the need to poll the sensor for a reading which improves system efficiency. The device 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 device-to-device variations for ease of manufacturability to the end customers.

LTR-507ALS-01 Ambient Light Sensor and Proximity Sensor Features
• I2C interface (Standard mode@100kbit/s, Fast Mode@400kbit/s and High Speed Mode@3.4Mbit/s)
• Built-in temperature compensation circuit
• Programmable independent thresholds and interrupts
• Low active power consumption with shutdown mode
• Supply voltage range from 2.4V to 3.6V capable of 1.7 V logic voltage
• Operating temperaturerange from -40°C to +85°C
• RoHS and Halogen free compliant
• Light Sensor Features
- Close to human eye spectral response
- 4 Gain Range Selections
- Works under different light source conditions
- Automatically rejects 50/60Hz lightings flicker
• Proximity Sensor Features
- Built-in LED driver and detector
- Programmable LED drive settings
- 11-bit effective resolution
- High ambient light suppression

LTR-507ALS-01 Ambient Light Sensor and Proximity Sensor Application
To control display backlight and/or object detection in
• Mobile Devices: Mobile phone, PDA
• Computing Devices: Notebook PC, Desktop Monitor
• Consumer Devices: LCD/PDP TV backlight systems, Cameras, Personal Navigation Device, Digital Photo Frame
• Dashboard

LTR-507ALS-01 Ambient Light Sensor and Proximity Sensor Rating and Specification
Absolute Maximum Rating at Ta=25°C

Parameter	Symbol	Rating	Unit
Supply Voltage	VDD	4.5	V
I2C Address Pin Voltage	SEL	-0.2 to 4.5	V
I2C Bus Pin Voltage	SCL, SDA	-0.2 to 4.5	V
I2C Bus Pin Current	SCL, SDA	10	mA
Storage Temperature	Tstg	-40 to 100	°C

Note: Exceeding these ratings could cause damage to the sensor. All voltages are with respect to ground. Currents are positive into, negative out of the specified terminal.