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BQ29311PWR - Texas Instruments

Description: Battery Protection Li-Ion/Li-Pol 0.2mA 3.3V 24-Pin TSSOP T/R

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BQ29311PWR - Texas Instruments - PCB symbol
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BQ29311PWR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0024A
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BQ29311PWR - Texas Instruments - 3D model - Small Outline Packages - PW0024A
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BQ29311PWR Details

  • Manufacturer Part Number:

    BQ29311PWR

  • 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 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):

    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

BQ29311PWR Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. The device should be placed near the battery, and the power traces should be wide and short to minimize resistance and inductance.
  • The sense resistor value depends on the maximum current and voltage of your application. A general rule of thumb is to choose a sense resistor value that results in a voltage drop of around 50-100 mV at the maximum current. You can use the formula Rsense = 0.05V / Imax to estimate the sense resistor value.
  • The EN pin is an active-high enable input that allows you to turn the device on and off. When EN is high, the device is enabled, and when EN is low, the device is disabled. You can use the EN pin to implement power-saving modes or to turn off the device during shutdown.
  • The BQ29311PWR has a built-in overcurrent protection feature that limits the output current to a safe value. You can adjust the overcurrent threshold by selecting the right sense resistor value. When an overcurrent condition is detected, the device will limit the output current to prevent damage.
  • A 10-22 uF ceramic capacitor is recommended for the input capacitor. The capacitor should be placed as close to the VIN pin as possible to filter out noise and ripple.

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BQ29311PWR 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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