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BQ77910ADBTR - Texas Instruments

Description: Battery Management 4-10 Cell Prec Prot for Li-Ion Chem

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BQ77910ADBTR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DBT0038A
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BQ77910ADBTR - Texas Instruments  - 3D model - Small Outline Packages - DBT0038A
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BQ77910ADBTR Details

  • Manufacturer Part Number:

    BQ77910ADBTR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    TSSOP

  • Package Description:

    TSSOP-38

  • Pin Count:

    38

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    3.9

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    BATTERY PROTECTOR

  • JESD-30 Code:

    R-PDSO-G38

  • JESD-609 Code:

    e4

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    2

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP38,.25,20

  • 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):

    0.075 mA

  • Supply Voltage-Max (Vsup):

    43.75 V

  • Supply Voltage-Min (Vsup):

    5.6 V

  • Supply Voltage-Nom (Vsup):

    36 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

  • Threshold Voltage-Nom:

    +4.9V

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

    30

  • Width:

    4.4 mm

BQ77910ADBTR Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a decoupling capacitor (e.g., 10uF) close to the device's power pins.
  • Use a high-accuracy voltage reference (e.g., 0.1% tolerance) and a low-ESR capacitor (e.g., 10uF) for the battery voltage measurement. Ensure the sense resistors (Rsns) are of low tolerance (e.g., 1%) and matched to minimize errors.
  • Perform a full calibration cycle after power-up, and then periodically (e.g., every 1000 cycles) to maintain accuracy. Use a known-good battery and follow the datasheet's calibration procedure to ensure accurate state-of-charge (SOC) and state-of-health (SOH) estimates.
  • Use an external thermistor (e.g., 10kΩ NTC) connected to the TMP pin. Ensure the thermistor is placed close to the battery and away from heat sources. Use the device's internal temperature compensation to adjust the battery monitoring results.
  • Use the I2C interface with a clock frequency of 100 kHz or 400 kHz. Ensure the I2C bus is properly terminated and use a pull-up resistor (e.g., 2.2kΩ) on the SCL line.

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BQ77910ADBTR 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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Part Image BQ77910ADBT Texas Instruments

BATTERY PROTECTOR, Adjustable, 1 Channel, +4.9V, PDSO38