Surface mount ambient light and color sensor LITEON LTR-381RGB-WA with wide operating temperature range
Product Overview
The LTR-381RGB-WA is an integrated low voltage I2C ambient light sensor (ALS) and a color sensor (CS) in a single 2x2mm miniature ChipLED lead-free surface mount package. It converts light (Red, Green, Blue, and IR) intensity to a digital output signal with direct I2C interface. The ALS offers a linear response over a wide dynamic range, suitable for varying ambient brightness. Features a programmable interrupt with hysteresis to improve system efficiency. Its CMOS design and factory-set trimming ensure minimal sensor-to-sensor variations for ease of manufacturability. Ideal for controlling display panel brightness and color in mobile, computing, and consumer devices.
Product Attributes
- Brand: LITE-ON Technology Corp.
- 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 | ||
| Operating Temperature | T Tope | -40 | 85 | C | ||
| I2C Interface Frequency | SCL f | 1 | 400 | kHz | ||
| ALS Active Supply Current | 120 | uA | Default duty cycle, VDD=3.0V, Gain 3x | |||
| CS Active Supply Current | 120 | uA | Default duty cycle, VDD=3.0V | |||
| Standby Current | 1.2 | uA | ||||
| Wakeup Time from Standby | 0.5 | 10 | ms | From Standby to Active mode where measurement can start | ||
| ALS/CS Resolution | 16 | 20 | Bit | Programmable for 16, 17, 18, 19, 20 Bit | ||
| Dark Level Count | 0 | 5 | Count | 0 Lux, 18-bit resolution | ||
| Lux Accuracy | -10 | +10 | % | Direct illumination | ||
| Color temperature Accuracy | -5 | +5 | % | Based on XYZ coordinate, no window. | ||
| 50/60 Hz flicker noise error | -5 | +5 | % | |||
| Temperature Dependency | -0.25 | +0.25 | %/C | At 100 Lux | ||
| Voltage Dependency | -5 | +5 | % | At 100 Lux, At operating voltage ranges | ||
| Integration time | 25 | 400 | ms | With 50/60Hz Rejection |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.