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BH1749NUC-E2

Name: BH1749NUC-E2
Rating: 4.7 (12 reviews)

DIGITAL 16BIT SERIAL OUTPUT TYPE

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規格

Supplier	Rohm Semiconductor
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Output	I²C
Resolution(Bits)	16 b
Voltage-Supply	2.3 V ~ 3.6 V
Current-Supply(Max)	295µA
OperatingTemperature	-40°C ~ 85°C

概述

Description

BH1749NUC-E2 is ROHM’s 4‑channel color sensor IC with I2C interface. It uses four photodiodes (Clear, Red, Green, Blue) and an integrated ADC to deliver digital color data to a host MCU. The “-E2” denotes the evaluation board/kit version used for rapid development with this sensor.
Key points:
- 4-channel color sensing (C, R, G, B) via I2C
- Programmable integration time and gain; low-power modes
- Small package for mobile/compact devices
- Outputs RGB and clear data; software can derive lux, color temperature, or use data for auto white balance and color calibration
- Supported by an evaluation board and reference firmware for quick start
Usage (high level): connect VDD, GND, SCL, SDA; power on; initialize via I2C, configure measurement mode; read the four channel values and process in your MCU.
For exact electrical specs, registers, and timing, consult the BH1749NUC datasheet and the BH1749NUC-E2 user guide.

Features

BH1749NUC-E2 is an evaluation board for the ROHM BH1749NUC RGB color/color-light sensor. Key features:
- 4-channel photodiodes: Red, Green, Blue, and Clear
- I2C digital output with selectable/slave address
- Programmable integration time and gain for wide dynamic range
- Built-in analog-to-digital conversion
- Low-power operation with configurable power modes
- On-board regulator and level shifting to support MCU I/O (typical 1.8–3.3 V logic)
- Breakout headers for I2C, power, and sensor channels; ESD protection
- USB interface or dedicated power option for easy PC/MCU evaluation
- Compatible with common development platforms (Arduino, Raspberry Pi) with example code/libs
- Compact form factor with mounting holes for easy prototyping
Note: exact voltage ranges and address options can vary; consult the current datasheet for precise specs.

Package

Package type: WLCSP (Wafer-Level Chip-Scale Package / LGA). See the BH1749NUC-E2 datasheet for the exact footprint and dimensions.

Pinout

BH1749NUC-E2 is supplied in a 10‑pin LGA package. Key pin functions: VDD (power), GND, SDA (I2C data), SCL (I2C clock), ADDR (I2C address select), INT (interrupt output), and the remaining pins are no‑connects / test pads used by the package/production (not required for normal use). Functionally it is a digital ambient color sensor that measures red/green/blue/clear channels and reports them over I2C; it includes integration/time control and interrupt threshold features for host notification.

Manufacturer

Manufacturer: ROHM Co., Ltd. (ROHM Semiconductor).
Company type: A Japanese semiconductor manufacturer that designs and produces integrated circuits, discrete and power devices, optoelectronics and sensors (including color/light sensor ICs).

Application

Applications of BH1749NUC-E2:
- Smartphones/tablets: ambient light sensing for auto-brightness and color temperature/white balance
- Wearables: display optimization and environmental light/color sensing
- Automotive: interior ambient light/color sensing for displays and climate/lighting control
- Smart home/IoT: ambient light and color monitoring for lighting automation
- Industrial/medical: color measurement, LED color matching and process monitoring

Equivalent

Common equivalents to the ROHM BH1749NUC-E2 (I2C digital RGB color sensor) include:
- AMS/TAOS TCS34725 (and TCS3472)
- Vishay VEML6040
- Renesas/ISL29125
- ROHM BH1745NUC (same family)
All are I2C-based RGB/color sensors with integrated ADCs; check spectral response, IF filter, dynamic range and package/pinout for exact interchangeability.