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BQ24745RHDR - Texas Instruments

Description: Battery Management SMBus-Cntrld Lev 2 Multi-Chem Batt Chrg

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BQ24745RHDR - Texas Instruments - PCB symbol
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PCB Footprints
BQ24745RHDR - Texas Instruments PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - RHD (S-PVQFN-N28)
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3D Models
BQ24745RHDR - Texas Instruments - 3D model - Quad Flat No-Lead - RHD (S-PVQFN-N28)
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BQ24745RHDR Details

  • Manufacturer Part Number:

    BQ24745RHDR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    QFN

  • Pin Count:

    28

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    3.9

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    LINEAR BATTERY CHARGER

  • Input Voltage-Max:

    24 V

  • Input Voltage-Min:

    7 V

  • JESD-30 Code:

    S-PQCC-N28

  • JESD-609 Code:

    e4

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    125 °C

  • 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

  • Supply Current-Max (Isup):

    12 mA

  • Supply Voltage-Max (Vsup):

    24 V

  • Supply Voltage-Min (Vsup):

    7 V

  • Supply Voltage-Nom (Vsup):

    20 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Temperature Grade:

    OTHER

  • Terminal Finish:

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

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Threshold Voltage-Nom:

    +2.4V

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

    30

  • Width:

    5 mm

BQ24745RHDR Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. The device should be placed near the battery, and the power inductors should be placed close to the device. A thermal pad should be used to connect the device to the PCB.
  • The inductor value depends on the input voltage, output voltage, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. The inductor value should be selected to ensure that the inductor current ripple is within 20-40% of the average inductor current.
  • The BQ24745RHDR can operate in ambient temperatures up to 105°C. However, the device's junction temperature should not exceed 125°C. The device's thermal performance should be evaluated using thermal simulation tools or thermal testing.
  • The BQ24745RHDR has a programmable charge voltage and current limit. The device should be configured based on the specific battery chemistry's recommended charging profile. The device's configuration should be evaluated using the device's evaluation module or a custom PCB.
  • A low-ESR ceramic capacitor with a value of 10-22uF is recommended. The input capacitor should be placed close to the device's input pins to minimize noise and ensure stable operation.

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BQ24745RHDR Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like BQ247, or try a keyword search, such as Power Management Circuits

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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