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BH1790GLC-E2 - ROHM Semiconductor

Description: Optical Sensor for Heart Rate Monitor: BH1790GLC is optical sensor for heart rate monitor in which LED driver and green light detection photo-diode are incorporated. This device drives LED and provides the intensity of light reflected from body. LED brightness can be adjusted by LED driver current and light emitting period. The photodiode having the high sensitivity for green light, excellent wavelength selectivity and excellent lrcut characteristics achieves accurate pulse wave detection.

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BH1790GLC-E2 - ROHM Semiconductor PCB footprint - Other - Other - WLGA010V28
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BH1790GLC-E2 Details

  • Manufacturer Part Number:

    BH1790GLC-E2

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    WLGA-10

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2016-11-15

  • Manufacturer:

    ROHM Semiconductor

  • YTEOL:

    0

  • Additional Feature:

    IT ALSO OPERATES AT 2.5 TO 3.6 V SUPPLY VOLTAGE

  • Analog IC - Other Type:

    ANALOG CIRCUIT

  • JESD-30 Code:

    S-XBGA-N10

  • Length:

    2.8 mm

  • Number of Functions:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -20 °C

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    LGA

  • Package Equivalence Code:

    LGA10,3X4(UNSPEC)

  • Package Shape:

    SQUARE

  • Package Style:

    GRID ARRAY

  • Seated Height-Max:

    1 mm

  • Supply Voltage-Max (Vsup):

    3.6 V

  • Supply Voltage-Min (Vsup):

    1.7 V

  • Supply Voltage-Nom (Vsup):

    3 V

  • Surface Mount:

    YES

  • Temperature Grade:

    OTHER

  • Terminal Form:

    NO LEAD

  • Terminal Position:

    BOTTOM

  • Width:

    2.8 mm

BH1790GLC-E2 Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate analog ground plane is recommended. Keep the analog and digital signal traces separate and avoid running them parallel to each other.
  • Calibrate the sensor by applying a known temperature and adjusting the offset and gain values accordingly. Also, ensure good thermal contact between the sensor and the object being measured.
  • The maximum cable length for the I2C interface is 10 meters, but it's recommended to keep it as short as possible to minimize signal degradation and noise.
  • Yes, but ensure the device is properly sealed and protected from moisture and extreme temperatures. The device is rated for operation up to 85°C and 80% relative humidity.
  • Use a low-pass filter or a ferrite bead to filter out high-frequency noise. Also, ensure good power supply decoupling and use a stable voltage reference.

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BH1790GLC-E2 Overview

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