SKU: SENS-3222
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ROHM Semiconductor Semiconductor BH1603FVC-TR WSOF-6 Ambient Light Sensor

₹36.00 (Inclusive of all taxes)
Out of Stock

The ROHM Semiconductor BH1603FVC-TR is a digital ambient light sensor (ALS) in a compact WSOF-6 package, designed for precise light intensity measurement with a spectral response close to the human eye. It features I2C digital output for easy integration with microcontrollers like Arduino, Raspberry Pi, and ESP32 for automatic display brightness control and energy-saving applications.

Features

  • Digital I2C interface for straightforward microcontroller integration.
  • Human-eye spectral response with integrated IR cut filter for accurate ambient light sensing.
  • Wide operating voltage range (typically 2.4V to 3.6V) and ultra-low power consumption.
  • Compact WSOF-6 surface-mount package suitable for space-constrained designs.
  • Extended operating temperature range from -40°C to +85°C for robust performance.

Out of stock

Description

The BH1603FVC-TR from ROHM Semiconductor is a high-performance digital ambient light sensor utilizing a photodiode and a signal conditioning IC within a single chip. It converts light intensity into a digital value via an integrated ADC, communicating through a standard I2C bus. This design eliminates the need for external analog components, simplifying system design.

The sensor’s spectral sensitivity is carefully matched to the photopic luminosity function, ensuring measurements correlate with human visual perception. An integrated infrared rejection filter minimizes the impact of IR light sources, enhancing accuracy in varied lighting environments. Its low-power operation makes it ideal for battery-powered portable electronics, IoT devices, and smart home systems requiring adaptive brightness control.

Key Features

  • Digital output via I2C interface (Fast Mode up to 400kHz).
  • High-resolution light intensity measurement with wide dynamic range.
  • Integrated photodiode, amplifier, and analog-to-digital converter.
  • Excellent spectral response matching the CIE 1931 standard observer.
  • Built-in infrared and ultraviolet light blocking filter.
  • Ultra-low operating current for battery-sensitive applications.
  • Robust WSOF-6 package with high-reliability solder joints.
  • Automotive-grade extended temperature operation (-40°C to +85°C).

Applications

  • Automatic display brightness adjustment in smartphones, tablets, and laptops.
  • Backlight dimming control for automotive instrument clusters and infotainment screens.
  • Energy-saving lighting control in smart home IoT devices and occupancy sensors.
  • Ambient light monitoring in digital signage and public information displays.
  • Photometric measurements in portable consumer electronics and wearables.

Technical Specifications

Manufacturer Part NumberBH1603FVC-TR
Manufacturer / BrandROHM Semiconductor Semiconductor
Sensor TypeDigital Ambient Light Sensor (ALS)
InterfaceI2C (Two-wire serial interface)
Package / CaseWSOF-6
Number of Pins6
Operating Voltage2.4 V to 3.6 V (Typical)
Operating Temperature Range-40°C to +85°C
Spectral Response RangeApproximately 400 nm to 700 nm (Visible Light)
Infrared FilterIntegrated
Output TypeDigital (I2C)
Power ConsumptionLow Power (Typical operating current < 200 µA)
Dimensions (Shipping)10 x 8 x 5 cm
Shipping Weight0.01 kg

Frequently Asked Questions

What is the operating voltage range for the BH1603FVC-TR sensor?

The BH1603FVC-TR typically operates from 2.4V to 3.6V. It is crucial to stay within this specified range to ensure accurate digital readings and prevent damage to the integrated circuitry. Always consult the official ROHM Semiconductor datasheet for the absolute maximum ratings before finalizing your power supply design.

How do I interface the BH1603FVC-TR with an Arduino or Raspberry Pi?

The sensor uses a standard I2C interface. Connect the VCC pin to a 3.3V supply, GND to ground, SDA to the microcontroller's I2C data line, and SCL to the I2C clock line. You will need to install a suitable library (often provided by ROHM Semiconductor or the community) to read the digital lux values over the I2C bus. Remember to use pull-up resistors on the SDA and SCL lines as required by the I2C specification.

Does this sensor require any external components for basic operation?

For basic digital light sensing, the BH1603FVC-TR requires minimal external components. You need standard I2C pull-up resistors (typically 4.7kΩ) on the SDA and SCL lines, a stable 3.3V power supply, and a decoupling capacitor (e.g., 100nF) placed close to the sensor's VCC pin. No external signal conditioning or ADC is required as these are integrated into the chip.

What is the purpose of the integrated infrared filter?

The integrated infrared (IR) filter blocks light in the infrared spectrum, ensuring the sensor's spectral response closely matches the human eye's photopic vision. This prevents inaccurate high lux readings from IR-rich light sources (like incandescent bulbs or sunlight) and is critical for achieving perceptually correct automatic brightness adjustment in display applications.

Package Includes

  • 1 x ROHM Semiconductor Semiconductor BH1603FVC-TR WSOF-6 Ambient Light Sensor

Additional Information

Weight 0.01 kg
Dimensions 8 × 10 × 5 cm