New VEML7700 Ambient Light Sensor Saves Space and Simplifies Window Designs in Flat-Panel TVs and Consumer Handheld Devices
Product Benefits:
- Combines a photo-diode, low-noise amplifier, and 16-bit ADC
- Miniature 6.8 mm by 3.0 mm by 2.35 mm surface-mount package
- Features Filtron™ technology
- Supports an I²C bus interface
- Ambient light range from 0 lx to 167 klx with 0.005 lx/ct resolution
- 100 Hz and 120 Hz flicker noise rejection
- Excellent temperature compensation from -25 °C to +85 °C
- Low power consumption:
- Down to 2 μA in operating mode
- Down to 0.5 μA in shutdown mode
- Lead (Pb)-free, 4-pin molded package
- RoHS-compliant, halogen-free, and Vishay GREEN
Market Applications:
Backlight dimming and optical switching for consumer products including televisions, CCTV cameras, smartphones, PDAs, and GPS units, in addition to power on / off for industrial lighting systems
The News:
The Optoelectronics group of Vishay Intertechnology introduces a new high-accuracy digital ambient light sensor for flat-panel televisions and consumer handheld devices. The Vishay Semiconductors VEML7700 combines a photo-diode, low-noise amplifier, and 16-bit ADC in a miniature, transparent surface-mount package measuring 6.8 mm by 3.0 mm by 2.35 mm. The sensor adopts Filtron technology and supports an I²C bus interface for simple operation.
- Compact size saves space
- Side- or top-view device provides mounting and placement flexibility
- Side-view package offers the same dimensions and optical axis height as Vishay’s TSOP772 IR receiver
- Greatly simplifies window designs
- Filtron technology enables ambient light spectral sensitivity close to that of the human eye
- O-Trim™ technology provides output tolerance of ≤ 10 %
- Allows for operation in applications with low-transmittance (dark) lens designs.
The Key Specifications:
| Part number | VEML7700 |
| Operating voltage range | 2.5 V to 3.6 V |
| I²C bus voltage range | 1.7 V to 3.6 V |
| Ambient light range | 0 lx to 167 klx |
| Ambient light resolution | 0.005 lx/ct |
Availability:
Samples and production quantities of the new ambient light sensor are available now, with lead times of 14 weeks for large orders.
To access the product datasheet on the Vishay Website, go to
http://www.vishay.com/ppg?84286 (VEML7700)
