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BQ20Z45DBT - Texas Instruments

Description: Gas Guage with Impedance Track

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BQ20Z45DBT - Texas Instruments - PCB symbol
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PCB Footprints
BQ20Z45DBT - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - BQ77908ADBTR.
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3D Models
BQ20Z45DBT - Texas Instruments - 3D model - Small Outline Packages - BQ77908ADBTR.
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BQ20Z45DBT Details

  • Manufacturer Part Number:

    BQ20Z45DBT

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    TSSOP

  • Package Description:

    TSSOP-44

  • Pin Count:

    44

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    4

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    BATTERY GAUGE

  • JESD-30 Code:

    R-PDSO-G44

  • JESD-609 Code:

    e4

  • Length:

    11.3 mm

  • Moisture Sensitivity Level:

    2

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    44

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP38,.25,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Max (Vsup):

    25 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    14 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

BQ20Z45DBT Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate layer for the fuel gauge circuitry is recommended. The BQ20Z45DBT should be placed close to the battery, and the PCB layout should minimize noise and interference.
  • Calibration involves setting the device's internal registers to match the battery's characteristics. TI provides a calibration guide and software tools to help with this process. It's recommended to follow the application note and use the provided software tools to ensure accurate calibration.
  • Temperature affects the device's accuracy, especially at extreme temperatures. The BQ20Z45DBT has a built-in temperature sensor, and the device can be calibrated to compensate for temperature effects. It's recommended to use the device's internal temperature sensor and calibration registers to compensate for temperature effects.
  • To ensure accurate SOC and SOH measurements, it's essential to follow proper installation and calibration procedures, use a high-quality battery, and implement a robust charging and discharging profile. Regularly updating the device's calibration and performing periodic self-tests can also help maintain accuracy.
  • Key considerations include selecting the right battery chemistry, designing a robust PCB layout, ensuring proper calibration and compensation for temperature and aging effects, and implementing a reliable charging and discharging profile. It's also essential to follow TI's guidelines and application notes for designing a reliable fuel gauge system.

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BQ20Z45DBT Overview

Use the download button to access the BQ20Z45DBT schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like BQ20Z, 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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