Product Description
The LTR-568ALS-01 is an integrated, low-voltage I2C ambient light sensor (ALS) and proximity sensor (PS) with a built-in emitter, all within a miniature chipled lead-free surface mount package. The ALS offers a linear response across a wide dynamic range, suitable for varying ambient brightness conditions. The integrated proximity sensor allows for user-configurable object detection distances. Features include a programmable interrupt with hysteresis to enhance system efficiency by eliminating the need for constant polling. Its CMOS design and factory-set trimming ensure minimal sensor-to-sensor variation. Applications include display panel brightness control and object detection 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 | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|
| General Specifications | |||||
| Supply Voltage | 3.0 | 3.6 | V | ||
| LED Supply Voltage | 2.5 | 4.35 | V | ||
| Operating Temperature | -40 | 85 | C | ||
| Supply Current (ALS & PS Active) | 325 | uA | Default setting | ||
| Supply Current (ALS Active) | 325 | uA | Full load | ||
| Supply Current (PS Active) | 145 | uA | Max. MRR with 16pulse 100%duty | ||
| Standby Current | 5 | uA | Shutdown Mode | ||
| Wakeup Time from Standby | 5 | 10 | ms | From Standby to Active mode | |
| Ambient Light Sensor (ALS) Features | |||||
| ALS Resolution | 16 | Bit | Programmable for 13, 14, 15, 16 Bit | ||
| ALS Lux accuracy | -15 | 15 | % | Across different light sources | |
| Dark Level Count | 5 | Count | 0 Lux, 16-bit resolution, gainx128 | ||
| Integration time | 50 | 400 | ms | With 50/60Hz Rejection | |
| 50/60 Hz flicker noise error | -5 | +5 | % | ||
| Proximity Sensor (PS) Features | |||||
| PS Resolution | 16 | Bit | |||
| Detection Distance | 8 | cm | 32us, 7 pulse, 190mA LED | ||
| LED Pulse Current | 190 | mA | Configurable | ||
| Configurable LED Pulse width | 32 | us | Configurable for 4,8,16,32 us | ||
| Number of LED Pulses | 1 | 32 | Pulses | Programmable | |
| Ambient light suppression | ** | 100 | klux | Direct sunlight | |
| Ambient light suppression | ** | 50 | klux | Above 50klux, internal fail-safe feature will force PS count to zero | |
| I2C Interface Specifications | |||||
| SCL clock frequency | 100 | kHz | Standard mode | ||
| SCL clock frequency | 400 | kHz | Fast mode | ||
| Bus free time (STOP to START) | 4.7 | - | us | Standard mode | |
| Bus free time (STOP to START) | 1.3 | - | us | Fast mode | |
| Hold time (repeated START) | 4.0 | - | us | Standard mode | |
| Hold time (repeated START) | 0.6 | - | us | Fast mode | |
| LOW period of SCL clock | 4.7 | - | us | Standard mode | |
| LOW period of SCL clock | 1.3 | - | us | Fast mode | |
| HIGH period of SCL clock | 4.0 | - | us | Standard mode | |
| HIGH period of SCL clock | 0.6 | - | us | Fast mode | |
| Set-up time for repeated START | 4.7 | - | us | Standard mode | |
| Set-up time for repeated START | 0.6 | - | us | Fast mode | |
| Set-up time for STOP condition | 4.0 | - | us | Standard mode | |
| Set-up time for STOP condition | 0.6 | - | us | Fast mode | |
| Rise time (SDA, SCL) | - | 1000 | ns | Standard mode | |
| Rise time (SDA, SCL) | - | 300 | ns | Fast mode | |
| Fall time (SDA, SCL) | - | 300 | ns | Standard mode | |
| Fall time (SDA, SCL) | - | 300 | ns | Fast mode | |
| Data hold time | 0 | - | us | Standard mode | |
| Data hold time | 0 | - | us | Fast mode | |
| Data setup time | 250 | - | ns | Standard mode | |
| Data setup time | 100 | - | ns | Fast mode | |
2504231158_LITEON-LTR-568ALS-01_C48542904.pdf
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