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BQ29449DRBR - Texas Instruments

Description: Battery Protection Li-Ion 4.3V 8-Pin VSON EP T/R

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BQ29449DRBR - Texas Instruments - PCB symbol
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PCB Footprints
BQ29449DRBR - Texas Instruments PCB footprint - Small Outline No-lead - Small Outline No-lead - DRB0008B
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3D Models
BQ29449DRBR - Texas Instruments - 3D model - Small Outline No-lead - DRB0008B
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BQ29449DRBR Details

  • Manufacturer Part Number:

    BQ29449DRBR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SON

  • Pin Count:

    8

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    Battery over-voltage protection(Min/Max)(V) : 4.275 and 4.325

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    SECONDARY BATTERY PROTECTOR

  • Input Voltage-Max:

    28 V

  • JESD-30 Code:

    S-PDSO-N8

  • JESD-609 Code:

    e4

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    2

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Supply Voltage-Max (Vsup):

    25 V

  • Supply Voltage-Min (Vsup):

    4 V

  • Supply Voltage-Nom (Vsup):

    17 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

BQ29449DRBR Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow the guidelines in the TI application note 'Battery Management System (BMS) PCB Layout Guidelines' (SLUA623) for optimal performance and to minimize noise and EMI.
  • Calibration of the BQ29449DRBR involves setting the correct gain and offset values for the voltage and current measurements. This can be done using the TI-provided software tools, such as the BQstudio software, or by following the calibration procedure outlined in the datasheet.
  • The BQ29449DRBR can support up to 16 series-connected cells, but the maximum number of cells depends on the specific application and the voltage range of the cells. It's recommended to consult the datasheet and the TI application note 'Battery Management System (BMS) Design Considerations' (SLUA622) for more information.
  • Yes, the BQ29449DRBR can be used for both charging and discharging applications. It has a built-in charger controller and a discharge controller, allowing it to manage both charging and discharging of the battery pack.
  • The BQ29449DRBR uses the I2C communication protocol for communication with the host microcontroller or other devices.

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BQ29449DRBR Overview

Use the download button to access the BQ29449DRBR schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like BQ294, 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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