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Specifications
Operating Temperature:
-40℃~+85℃
Interface:
I2C
Measurement Type:
Light Intensity
Voltage - Supply:
1.7V~3.6V
Photoperceptivity:
157klx
Mfr. Part #:
LTR-308ALS-01
Package:
SMD
Key Attributes
Model Number:
LTR-308ALS-01
Product Description
Product Overview
The LTR-308ALS-01 is an integrated, low-voltage I2C ambient light sensor (ALS) housed in a miniature 2x2mm chipled surface mount package. It offers a linear response across a wide dynamic range, suitable for both low and bright ambient light conditions. The sensor features a programmable interrupt with hysteresis, eliminating the need for constant polling and improving system efficiency. Its CMOS design and factory-set trimming ensure minimal variations between sensors, simplifying manufacturing. This sensor is designed to control display panel brightness in mobile, computing, and consumer devices.
Product Attributes
- Brand: LITE-ON
- Origin: Taiwan, R.O.C.
- Certifications: RoHS and Halogen free compliant
Technical Specifications
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Condition |
| Supply Voltage | VDD | 1.7 | 3.6 | V | ||
| Interface signal input high | VI2Chigh | 1.5 | VDD | V | ||
| Interface signal input low | VI2Clow | 0 | 0.4 | V | ||
| Operating Temperature | Tope | -40 | 85 | C | ||
| Active Supply Current | 110 | uA | Max. duty cycle, Vdd=1.8V, Gain 3x | |||
| Standby Current | 1 | uA | ||||
| Shutdown Mode Wakeup Time from Standby | t | 5 | 10 | ms | From Standby to Active mode | |
| ALS Resolution | 16 | 20 | Bit | Programmable for 16, 17, 18, 19, 20 Bit | ||
| ALS Lux accuracy | -10 | 10 | % | White LED, 5000K, Ta = 25 | ||
| Dark Level Count | 0 | 5 | Count | 0 Lux, 18-bit resolution | ||
| Integration time | 50 | 400 | ms | With 50/60Hz Rejection | ||
| 50/60 Hz flicker noise error | -5 | +5 | % | |||
| SCL clock frequency | SCL f | 1 | 400 | kHz | ||
| Bus free time between a STOP and START condition | t BUF | 1.3 | us | |||
| Hold time (repeated) START condition. After this period, the first clock pulse is generated | t STA HD | 0.6 | us | |||
| LOW period of the SCL clock | t LOW | 1.3 | us | |||
| HIGH period of the SCL clock | t HIGH | 0.6 | us | |||
| Set-up time for a repeated START condition | t STA SU | 0.6 | us | |||
| Set-up time for STOP condition | t STO SU | 0.6 | us | |||
| Rise time of both SDA and SCL signals | rt | 30 | 300 | ns | ||
| Fall time of both SDA and SCL signals | ft | 30 | 300 | ns | ||
| Data hold time | t DAT HD | 0.3 | 0.9 | us | ||
| Data setup time | t DAT SU | 100 | ns | |||
| Pulse width of spikes which must be suppressed by the input filter | t SP | 0 | 50 | ns | ||
| I2C Slave Address (Default) | 0x53 |
2410121549_LITEON-LTR-308ALS-01_C492382.pdf
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