Product Overview
The VCNL4040 is a fully integrated proximity and ambient light sensor with an infrared emitter, I2C interface, and interrupt function. It combines photodiodes, amplifiers, and analog-to-digital converting circuits into a single chip. The device offers high-resolution ambient light sensing, programmable interrupt thresholds for both ALS and PS, intelligent cancellation for proximity sensing, and smart persistence for accelerated response times. Its patented FiltronTM technology ensures spectral sensitivity close to human eye response and effective background light cancellation. The VCNL4040 provides excellent temperature compensation and is easily configurable via an I2C interface. It operates within a voltage range of 2.5 V to 3.6 V and is available in a lead-free 8-pin molding package.
Product Attributes
- Brand: Vishay Semiconductors
- Package Type: Surface Mount
- Dimensions (L x W x H in mm): 4.0 x 2.0 x 1.1
- Material Categorization: Refer to www.vishay.com/doc?99912 for compliance definitions
- Floor Life: 168 h, MSL 3, according to J-STD-020
Technical Specifications
| Feature | Specification |
|---|---|
| Integrated Modules | Infrared emitter (IRED), Ambient Light Sensor (ALS), Proximity Sensor (PS), Signal Conditioning IC |
| Operating Voltage Range | 2.5 V to 3.6 V |
| I2C Bus Voltage Range | 1.8 V to 3.6 V |
| I2C Interface | I2C (SMBus compatible) |
| Operating Temperature Range | -40 C to +85 C |
| Storage Temperature Range | -40 C to +100 C |
| ALS Resolution | 16-bit |
| PS Output Data Selectable | 12-bit / 16-bit |
| FiltronTM Technology | Yes (for robust background light cancellation) |
| Temperature Compensation | Yes |
| Interrupt Function | Programmable for ALS and PS with upper and lower thresholds, adjustable persistence |
| Proximity Function Features | Immunity to red glow (940 nm IRED), Programmable IRED sink current, Intelligent cancellation, Smart persistence scheme |
| Ambient Light Function Features | High accuracy (10 %), Fluorescent light flicker immunity, Spectrum close to human eye responses, Selectable maximum detection range (819 / 1638 / 3277 / 6553) lux with highest sensitivity 0.0125 lux/step |
| I2C Bus Operating Frequency | 10 kHz to 400 kHz |
| IRED Pulse Current (Typical) | 200 mA |
| Ambient Light Range | 0.0125 lx to 6553 lx |
| Ambient Light Resolution | 0.0125 lx/step |
| Proximity Detection Range | 0 to 200 mm (with Kodak white card) |
| Supply Current (Typical, excluded LED driving) | 300 A |
| Supply Current (ALS shut down, PS enable) | 200 A |
| Supply Current (PS shut down, ALS enable) | 260 A |
| Supply Current (Light condition = dark, VDD = 3.3 V) | 0.2 A |
2410121835_VISHAY-VCNL4040M3OE_C142526.pdf
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