OPT4001-Q1
OPT4001-Q1 is Digital Ambient Light Sensor manufactured by Texas Instruments.
Features
- AEC-Q100 qualified for automotive applications:
- Temperature grade 2:
- 40°C to +105°C, TA
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- High-precision, high-speed light-to-digital conversion over high-speed I2C interface
- Precision optical filtering closely matches human eye with excellent near infrared (IR) rejection
- Semi-logarithmic output:
- Nine binary logarithmic full-scale light range
- Highly linear response within each range
- Built-in automatic full-scale light range selection logic, which switches measurement range based on input light condition for best possible resolution at all times
- 28 bits of effective dynamic range:
- 400 μlux to 107 klux
- 12 configurable conversion times:
- 600 μs to 800 ms for high-speed and highprecision applications
- External pin interrupt for hardware-synchronized trigger and interrupts
- Error correction code features for improved reliability in automotive use cases
- Internal FIFO for output registers with I2C burst readout
- Low operating current: 30 μA
- Ultra-low power standby: 2 μA
- Operating temperature range:
- 40°C to +105°C
- Wide power-supply range: 1.6 V to 3.6 V
- 5.5-V tolerant I/O pins
- Selectable I2C address
- Small-form factor: 2 mm × 2 mm × 0.65 mm
Dark Glass
Accurate light intensity (lux) I2C
OPT4001-Q1 Typical Application Diagram
2 Applications
- Automotive interior and exterior lighting
- Infotainment and cluster
- Electrochromatic and smart mirrors
- Wiper modules
- Head-up display systems
- Automotive camera systems
3 Description
The OPT4001-Q1 is a light-to-digital sensor (single chip lux meter) that measures the intensity of visible light. To measure accurate light intensity, a specially engineered filter on the device tightly matches the photopic response of the human eye and rejects the near-infrared ponent from mon light sources. The output of OPT4001-Q1 is semi-logarithmic with nine binary logarithmic full-scale...