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BQ29311PW - Texas Instruments

Description: Texas Instruments BQ29311PW, Li-Ion Protector Circuit Lithium-Ion, Lithium-Polymer, 24-Pin TSSOP

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BQ29311PW - Texas Instruments - PCB symbol
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PCB Footprints
BQ29311PW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW (R-PDSO-G24)
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BQ29311PW - Texas Instruments - 3D model - Small Outline Packages - PW (R-PDSO-G24)
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BQ29311PW Details

  • Manufacturer Part Number:

    BQ29311PW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Pin Count:

    24

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    BATTERY PROTECTOR

  • Input Voltage-Max:

    34 V

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e4

  • Length:

    7.8 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    5

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -25 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP24,.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):

    0.22 mA

  • Supply Voltage-Max (Vsup):

    34 V

  • Supply Voltage-Nom (Vsup):

    14 V

  • Surface Mount:

    YES

  • 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:

    4.4 mm

BQ29311PW Frequently Asked Questions (FAQs)

  • A good PCB layout for the BQ29311PW involves keeping the high-current paths short and wide, using multiple vias to connect the PGND and NGND pins to the thermal pad, and placing the input capacitors close to the VIN pin. A 4-layer PCB with a solid ground plane is recommended.
  • To select the right inductor for the BQ29311PW, consider the maximum current rating, inductance value, and DC resistance. A good starting point is to choose an inductor with a saturation current rating above the maximum output current, an inductance value between 1-10 μH, and a DC resistance below 100 mΩ.
  • A ceramic capacitor with an X7R or X5R dielectric and a value between 4.7-10 μF is recommended for the input capacitor. The capacitor should be placed close to the VIN pin and have a voltage rating above the maximum input voltage.
  • To optimize the compensation network, start with the recommended values in the datasheet and adjust the resistors and capacitors based on the desired transient response and stability. A good starting point is to use a type-2 compensation network with a zero at 1/3 of the switching frequency.
  • The BQ29311PW has an operating ambient temperature range of -40°C to 125°C. However, the device can be operated at a higher temperature range with derating, but this may affect the device's reliability and lifespan.

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BQ29311PW 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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