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BQ2057TTSG4 - Texas Instruments

Description: Battery Management Li-Ion LDO Linear Charge Management IC

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BQ2057TTSG4 - Texas Instruments - PCB symbol
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BQ2057TTSG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW (R-PDSO-G8)
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BQ2057TTSG4 - Texas Instruments - 3D model - Small Outline Packages - PW (R-PDSO-G8)
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BQ2057TTSG4 Details

  • Manufacturer Part Number:

    BQ2057TTSG4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, PLASTIC, TSSOP-8

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    LINEAR BATTERY CHARGER

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.4 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,.25

  • 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 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 (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

BQ2057TTSG4 Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended layout and placement guide in the application note SLUA271, which includes guidelines for component placement, PCB layout, and thermal management to ensure optimal performance and reliability.
  • The BQ2057TTSG4 provides a Coulomb counter and voltage measurement to estimate the battery capacity and SOC. The application note SLUA272 provides a detailed explanation of the calculation method and formulas to determine the battery capacity and SOC.
  • The BQ2057TTSG4 fuel gauge accuracy is typically ±5% over the entire operating range. Calibration is done through a process called 'learn cycle', which involves fully charging and discharging the battery while the device learns the battery's characteristics. The application note SLUA273 provides more information on the calibration process.
  • The BQ2057TTSG4 provides a serial communication interface (I2C or HDQ) to communicate with a microcontroller or other digital systems. The datasheet and application notes provide detailed information on the communication protocol, register maps, and example code snippets for popular microcontrollers.
  • The BQ2057TTSG4 is a high-power device and requires proper thermal management to ensure reliability and performance. The datasheet provides thermal resistance values, and the application note SLUA271 provides guidelines for thermal design, including PCB layout, heat sinking, and airflow considerations.

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BQ2057TTSG4 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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