Low Voltage I2C Digital Ambient Light Sensor - LTR-303ALS-01
? 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
- Model Number: LTR-303ALS-01
- Data Sheet:
- Quantity:
- - +
Product Specification
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 |
Recommended Operating Conditions
|
Description |
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 |
Electrical & Optical Specifications
All specifications are at VDD = 3.0V, Tope= 25°C, unless otherwise noted.
|
Parameter |
Min. |
Typ. |
Max. |
Unit |
Condition |
|
Active Supply Current |
|
|
220 |
uA |
Active Mode, Tope= 25°C, 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) |
Light Sensor
|
Parameter |
Min. |
Typ. |
Max. |
Unit |
Condition |
|
Full Scale ADC Count |
|
|
65535 |
count |
|
|
Dark ADC Count |
0 |
|
6 |
count |
Ch0, Lux = 0 |
| 0 |
|
6 |
count |
Ch1, Lux = 0 |
|
|
ADC Count (Gain=96) @200Lux |
3250 |
|
6100 |
count |
Ch1 (see note 2) White LED 200 Lux Integration Time : 50ms Measurement Time : 100ms |
|
1050 |
|
1950 |
count |
Ch1 (see note 2) White LED 200 Lux Integration Time : 50ms Measurement Time : 100ms |
|
|
0.15 |
|
0.35 |
Ratio |
Ch1/(Ch0 + Ch1) |
If you cannot find what you want, you can entrust ISweek to source for you. Just click:
Sourcing Service
