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ROHM BH1721FVCTR Digital Ambient Light Sensor
The ROHM BH1721FVC-TR is a digital ambient light sensor IC designed for I2C bus interface applications. This sensor is ideal for adjusting LCD and keypad backlight power in mobile phones, offering a wide range of detection (1 to 65528 lx) and high resolution. It features spectral responsibility approximating the human eye response, a low-current power-down function, and a compact surface mount package. The BH1721FVC-TR is suitable for various applications including mobile phones, LCD TVs, portable game machines, and digital cameras.
ROHM BH1721FVCTR Digital Ambient Light Sensor Specifications:
- Supply Voltage: 4.5 V
- Operating Temperature: -40～85 ℃
- Storage Temperature: -40～100 ℃
- SDA Sink Current: 7 mA
- Power Dissipation: 165 mW
- I2C Reference Voltage: 1.65-3.6 V
- Supply Current (Icc1): 140-199 µA
- Powerdown Current (Icc2): 0.01-1.0 µA
- Peak Wave Length: 560 nm
- Measurement Accuracy: 1.02-1.38 times
- Dark Sensor Output (S0): 0-2 count
- H-Resolution Mode Resolution: 1 lx
- L-Resolution Mode Resolution: 8 lx
- H-Resolution Mode Measurement Time: 120-180 ms
- L-Resolution Mode Measurement Time: 16-24 ms
- Incandescent/Fluorescent Sensor Out Ratio: 1
- DVI Input ‘L’ Voltage: 0.4 V
- SCL, SDA Input ‘H’ Voltage: 0.7-1.26 V
- SCL, SDA Input ‘L’ Voltage: 0-1.26 V
- SCL, SDA Input ‘H’ Current: 10 µA
- SCL, SDA Input ‘L’ Current: 10 µA
- I2C SCL Clock Frequency: Up to 400 kHz
- I2C Bus Free Time: 1.3 µs
- I2C Hold Time (repeated START): 0.6 µs
- I2C Set up time (repeated START): 0.6 µs
- I2C Set up time (repeated STOP): 0.6 µs
- I2C Data Hold Time: 0 µs
- I2C Data Valid Time: 0.9 µs
- I2C Data Valid Acknowledge Time: 0.9 µs
- I2C Data Setup Time: 100 ns
- I2C ‘L’ Period of the SCL Clock: 1.3 µs
- I2C ‘H’ Period of the SCL Clock: 0.6 µs
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Frequently Asked Questions
Where can I buy ROHM BH1721FVCTR?
You can click on the BUY or RFQ button to purchase BH1721FVCTR from an authorized ROHM distributor.
How do I troubleshoot issues or seek technical support for part BH1721FVCTR?
You can download the BH1721FVCTR datasheet or visit the ROHM website for support.
Who is the manufacturer of BH1721FVCTR?
ROHM