LTR-303ALS-01 Ambient Light Sensor Description
The LTR-303ALS-01 is a low voltage I2C digital light sensor [ALS] in a low cost 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.
LTR-303ALS-01 Ambient Light Sensor Features
I2C interface (Fast Mode @ 400kbit/s)
Ultra small 6 pin ChipLED package
2.0mm(L), 2.0mm(B), 0.7mm(H)
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 -30°C - 70°C
RoHS and Halogen free compliant
Close to human eye spectral response
Immunity to IR / UV Light Source
Automatically rejects 50 / 60 Hz lightings flicker
Full dynamic range from 0.01 lux to 64k lux
16-bit effective resolution
LTR-303ALS-01 Ambient Light Sensor Applications
Back-lighting Control in mobile/portable devices
Touch Panel Control in mobile/portable devices
LTR-303ALS-01 Ambient Light Sensor Ratings and Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter |
Symbol |
Rating |
Unit |
Supply Voltage |
VDD |
3.8 |
V |
Digital Voltage Range |
SCL, SDA, INT |
-0.5 to 3.8 |
V |
Digital Output Current |
SCL, SDA, INT |
-1 to 20 |
mA |
Storage Temperature |
Tstg |
-40 to 100 |
°C |
|
Symbol |
Min. |
Typ. |
Max. |
Unit |
Supply Voltage |
VDD |
2.4 |
|
3.6 |
V |
Interface Bus Power Supply Voltage |
VIO |
1.7 |
|
3.6 |
V |
I2C Bus Input Pin High Voltage |
VIH SCL, VIH SDA |
1.2 |
|
|
V |
I2C Bus Input Pin Low Voltage |
VIL SCL, VIL SDA |
|
|
0.6 |
V |
Operating Temperature |
Tope |
-30 |
|
70 |
°C |
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