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BQ7790512PWR - Texas Instruments

Description: 3- to 5-Series Li-Ion and Li-Phosphate Ultra-Low-Power Stackable Battery Protector

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BQ7790512PWR - Texas Instruments - PCB symbol
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BQ7790512PWR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW (R-PDSO-G20)
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BQ7790512PWR - Texas Instruments - 3D model - Small Outline Packages - PW (R-PDSO-G20)
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BQ7790512PWR Details

  • Manufacturer Part Number:

    BQ7790512PWR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2017-09-23

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    OVER VOLTAGE AND UNDER VOLTAGE THRESHOLD IS 4.175 AND 2.8V

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    BATTERY MONITOR/PROTECTOR

  • Input Voltage-Max:

    25 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Channels:

    5

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °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

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Max (Vsup):

    25 V

  • Supply Voltage-Min (Vsup):

    3 V

  • Supply Voltage-Nom (Vsup):

    20 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Threshold Voltage-Nom:

    +4.175,2.8V

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

    30

  • Width:

    4.4 mm

BQ7790512PWR 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 BQ7790512PWR can be configured for different battery chemistries by adjusting the voltage and current settings through the I2C interface. The device comes with pre-programmed settings for common battery chemistries, but custom settings can be programmed using the TI-provided software tools.
  • The BQ7790512PWR can support up to 5A of charging current, but the maximum current is limited by the external MOSFETs and the PCB design. The device can be configured to limit the charging current to a specific value to prevent overheating or damage to the battery.
  • The BQ7790512PWR has a built-in over-discharge protection feature that prevents the battery from being discharged below a certain voltage threshold. This is achieved through a combination of voltage monitoring and current limiting, and can be configured through the I2C interface.
  • Yes, the BQ7790512PWR can be used for charging multiple batteries in parallel, but it requires additional external circuitry to balance the charging current between the batteries. TI provides application notes and reference designs for parallel charging configurations.

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BQ7790512PWR 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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