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BQ24747RHDR - Texas Instruments

Description: IC BAT CHG MULTCHEM 2-4CL 28VQFN

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BQ24747RHDR - Texas Instruments - PCB symbol
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PCB Footprints
BQ24747RHDR - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RHD (S-PVQFN-N28)
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3D Models
BQ24747RHDR - Texas Instruments - 3D model - Quad Flat No-Lead - RHD (S-PVQFN-N28)
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BQ24747RHDR Details

  • Manufacturer Part Number:

    BQ24747RHDR

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    QFN

  • Package Description:

    5 X 5 MM, GREEN, PLASTIC, QFN-28

  • Pin Count:

    28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    BATTERY CHARGE CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    24 V

  • Input Voltage-Min:

    7 V

  • Input Voltage-Nom:

    20 V

  • JESD-30 Code:

    S-PQCC-N28

  • JESD-609 Code:

    e4

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC28,.2SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    360 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    5 mm

BQ24747RHDR Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate layer for the high-current paths is recommended. Ensure that the input and output capacitors are placed close to the IC, and the inductor is placed near the IC's switching node.
  • Choose an inductor with a high saturation current rating, low DCR, and a core material suitable for high-frequency operation. The inductor value should be selected based on the desired output voltage, input voltage, and switching frequency.
  • A low-ESR ceramic or film capacitor with a value between 10uF to 22uF is recommended. The capacitor should be rated for the input voltage and have a low impedance at the switching frequency.
  • Ensure that the output capacitor has a low ESR, and the output voltage is properly decoupled. Add a small ceramic capacitor (e.g., 100nF) in parallel with the output capacitor to improve stability. Also, ensure that the PCB layout is well-designed and the components are properly placed.
  • The BQ24747RHDR is rated for operation up to 105°C ambient temperature. However, the maximum junction temperature (TJ) is 150°C. Ensure that the converter is properly cooled, and the thermal design is adequate for the application.

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BQ24747RHDR Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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Part Image BQ24747RHDT Texas Instruments

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