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BQ24640RVAT - Texas Instruments

Description: High efficiency synchronous switch-mode battery charge controller for super capacitor

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Symbol
BQ24640RVAT - Texas Instruments - PCB symbol
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PCB Footprints
BQ24640RVAT - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RVA (S-PVQFN-N16)
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3D Models
BQ24640RVAT - Texas Instruments - 3D model - Quad Flat No-Lead - RVA (S-PVQFN-N16)
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BQ24640RVAT Details

  • Manufacturer Part Number:

    BQ24640RVAT

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Pin Count:

    16

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHED CAPACITOR CONVERTER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    28 V

  • Input Voltage-Min:

    5 V

  • Input Voltage-Nom:

    20 V

  • JESD-30 Code:

    S-PQCC-N16

  • JESD-609 Code:

    e4

  • Length:

    3.5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Nom:

    6 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC16,.14SQ,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

  • Supply Voltage-Max (Vsup):

    28 V

  • Supply Voltage-Min (Vsup):

    5 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    690 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    3.5 mm

BQ24640RVAT Frequently Asked Questions (FAQs)

  • A good PCB layout for the BQ24640RVAT involves keeping the high-current paths short and wide, using a solid ground plane, and placing the input capacitors close to the device. TI provides a recommended layout in the datasheet and application notes.
  • The selection of external components depends on the specific application requirements, such as input voltage, output voltage, and maximum current. TI provides a component selection guide in the datasheet and application notes, and online tools like the TI Power Stage Designer can also be used to aid in component selection.
  • The BQ24640RVAT has an operating ambient temperature range of -40°C to 125°C. High temperatures can affect the device's performance, reducing its efficiency and increasing its power losses. It's essential to ensure proper thermal design and heat sinking to maintain a safe operating temperature.
  • The BQ24640RVAT has a built-in overcurrent protection feature. To implement it, connect the OCP pin to a resistor divider network, and set the threshold voltage according to the desired current limit. The recommended settings can be found in the datasheet and application notes.
  • The recommended startup sequence for the BQ24640RVAT involves applying the input voltage, then the enable signal. This sequence ensures proper device startup and prevents unwanted behavior. Improper startup sequencing can lead to device malfunction or damage.

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BQ24640RVAT 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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