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BQ2057CDGK - Texas Instruments

Description: Low Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2V

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BQ2057CDGK - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DGK (S-PDSO-G8)
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BQ2057CDGK - Texas Instruments  - 3D model - Small Outline Packages - DGK (S-PDSO-G8)
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BQ2057CDGK Details

  • Manufacturer Part Number:

    BQ2057CDGK

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    MSOP

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    LINEAR BATTERY CHARGER

  • Input Voltage-Max:

    15 V

  • Input Voltage-Min:

    4.5 V

  • JESD-30 Code:

    S-PDSO-G8

  • 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:

    70 °C

  • Operating Temperature-Min:

    -20 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.19

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.1 mm

  • Supply Current-Max (Isup):

    4 mA

  • Supply Voltage-Max (Vsup):

    15 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

BQ2057CDGK Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a compact layout with the IC placed close to the battery, and the sense resistors (Rsns) placed close to the IC. The layout should also minimize the distance between the IC and the battery, and ensure that the sense lines are not routed near noise sources.
  • Calibration involves adjusting the gain and offset of the fuel gauge to match the specific battery characteristics. This can be done by measuring the battery voltage and current during charging and discharging, and then adjusting the gain and offset registers accordingly. TI provides a calibration guide and software tools to assist with this process.
  • Temperature affects the battery's characteristics, which in turn affect the fuel gauge's accuracy. The BQ2057CDGK has a built-in temperature sensor, and TI recommends using this data to compensate for temperature effects. Additionally, the device has a temperature coefficient correction feature to further improve accuracy.
  • The POR and BOR features ensure the device resets properly during power-up and brown-out conditions. To handle these features, ensure that the power supply is stable and within the recommended operating range, and that the device is properly configured for the specific application requirements.
  • The BQ2057CDGK uses an I2C interface for communication. TI recommends using a dedicated I2C bus for communication, and following the I2C protocol specifications to ensure reliable data transfer.

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BQ2057CDGK 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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