Product Description
The LTR-390UV-01 is an integrated low voltage I2C ambient light sensor (ALS) and ultraviolet light sensor (UVS) in a single miniature 2x2mm 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 ALS response over a wide dynamic range from 0.01 lux to 157k lux and is well suited to applications under high ambient brightness. The sensor has a programmable interrupt with hysteresis to response to events, removing the need to poll the sensor for a reading and improving system efficiency. Its CMOS design and factory-set one-time trimming capability ensure minimal sensor-to-sensor variations for ease of manufacturability. Applications include identifying the UV index for sun protection and controlling display panel brightness and color in mobile, computing, and consumer devices.
Product Attributes
- Part Number: LTR-390UV-01
- Packaging Type: Tape and Reel
- Package: 6-pin chipled package
- Quantity: 2500
- Certifications: RoHS and Halogen free compliant
Technical Specifications
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|---|
| Absolute Maximum Rating | ||||||
| Supply Voltage | VDD | 4.0 | V | |||
| Digital Voltage Range | SCL, SDA, INT | -0.5 | 4.0 | V | ||
| Storage Temperature | Tstg | -45 | 95 | C | ||
| Max. Input Current | SCL,SDA,INT | -100 | 100 | mA | ||
| Electrostatic Discharge Protection (Human Body Model JESD22-A114) | VHBM | 2000 | V | |||
| Recommended Operating Conditions | ||||||
| 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 | ||
| Electrical Specifications | ||||||
| ALS Active Mode Current | 110 | uA | Max. duty cycle, Vdd=2.8V, Gain 3x | |||
| UVS Active Mode Current | 100 | uA | Max. duty cycle, Vdd=2.8V | |||
| Standby Current | 1 | uA | ||||
| Wakeup Time from Standby | 5 | 10 | ms | From Standby to Active mode where measurement can start | ||
| Ambient Light Characteristics | ||||||
| ALS Output Resolution | 13 | 18 | 20 | Bit | Programmable for 13,16,17,18,19, 20 bit | |
| Dark Level Count | 0 | count | 0 Lux, Tope=25C, 18-bit range | |||
| Calibrated Lux Error In Gain Range 3 | -10 | 10 | % | White LED,5000K, Tope=+25C | ||
| Light Source Matching | -10 | 10 | % | Incandescent vs Fluorescent light | ||
| ALS Accuracy | -10 | 10 | % | |||
| 50/60 Hz flicker noise error | -5 | 5 | % | |||
| Temperature Dependency | -0.25 | 0.25 | %/C | At 1000 Lux | ||
| Voltage Dependency | -5 | 5 | % | At 1000 Lux, At operating voltage ranges | ||
| UVS Sensor Characteristics | ||||||
| UVS Output Resolution | 13 | 18 | 20 | Bit | Programmable for 13,16,17,18,19,20 bit | |
| UV Count | 960 | count | UV LED 310nm, Tope=25C, 20-bit Gain range =18, Irradiance =70uW/cm2 | |||
| UV Sensitivity | 1810 | Counts/UVI | Gain range = 18, 20-bit | |||
| AC Electrical Characteristics | ||||||
| SCL clock frequency | SCL f | 100 | 400 | KHz | Standard / Fast Mode | |
| Bus free time between STOP and START | BUF t | 4.7 | us | |||
| Hold time (repeated) START condition | STA HD t | 4 | us | |||
| LOW period of the SCL clock | LOW t | 4.7 | us | |||
| HIGH period of the SCL clock | HIGH t | 4 | us | |||
| Set-up time for a repeated START condition | STA SU t | 4.7 | us | |||
| Set-up time for STOP condition | STO SU t | 4 | 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 | DAT HD t | 0 | us | |||
| Data setup time | DAT SU t | 100 | ns | |||
| Pulse width of spikes suppressed by input filter | SP t | 0 | 50 | ns | ||
2410121525_LITEON-LTR-390UV-01_C492374.pdf
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