Ambient light sensor and proximity detector AMS TSL27721FN light to digital converter with UV rejection filter
Product Overview
The TSL2772 device family is a light-to-digital converter offering both ambient light sensing (ALS) and proximity detection when paired with an external IR LED. Utilizing ams OSRAM's patented dual-diode technology, it provides accurate ALS measurements that approximate human eye response under various lighting conditions. The device features a reduced-gain mode for extended operating range up to 60k lux in sunlight and includes a UV-rejection filter for precise ALS. Proximity detection is enhanced with improved signal-to-noise performance, selectable gain modes, and a proximity offset register for crosstalk compensation. A proximity saturation indicator bit prevents false readings by signaling when internal analog circuitry reaches saturation.
Product Attributes
- Brand: ams OSRAM
- Product Family: TSL2772
- Technology: Dual-diode architecture
- Package: 2mm 2mm Dual Flat No-Lead (FN) Package
- Certifications: Not specified in provided text
- Material: Not specified in provided text
- Color: Not specified in provided text
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Supply Voltage (VDD) | TSL27721 & TSL27725 (IC Vbus = VDD) | 2.4 | 3 | 3.6 | V | |
| Supply Voltage (VDD) | TSL27723 & TSL27727 (IC Vbus = 1.8V) | 2.7 | 3 | 3.6 | V | |
| Operating Free-Air Temperature (TA) | -30 | 70 | C | |||
| Supply Current (IDD) | Active, LDR pulse OFF | 200 | 250 | A | ||
| Supply Current (IDD) | Wait state | 90 | A | |||
| Supply Current (IDD) | Sleep state - no IC activity | 2.2 | A | |||
| SCL, SDA Input High Voltage | TSL27721, TSL27725 | 0.7 VDD | V | |||
| SCL, SDA Input High Voltage | TSL27723, TSL27727 | 1.25 | V | |||
| SCL, SDA Input Low Voltage | TSL27721, TSL27725 | 0.3 VDD | V | |||
| SCL, SDA Input Low Voltage | TSL27723, TSL27727 | 0.54 | V | |||
| Dark ADC count value (CH0) | Ee = 0, AGAIN = 120x, ATIME = 0xDB (100 ms) | 5 | counts | |||
| Dark ADC count value (CH1) | Ee = 0, AGAIN = 120x, ATIME = 0xDB (100 ms) | 5 | counts | |||
| ADC Integration Time Step Size | ATIME = 0xFF | 2.58 | 2.9 | ms | ||
| ADC Number of Integration Steps | (4) | 1 | 256 | steps | ||
| ADC Counts Per Step | (4) ATIME = 0xFF | 0 | 1024 | counts | ||
| ADC Count Value | (4) ATIME = 0xC0 | 0 | 65535 | counts |
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