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BQ2005STR - Texas Instruments

Description: Battery Management NiCd/NiMH Switchmode Charge Mngmnt IC

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BQ2005STR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW
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BQ2005STR Details

  • Manufacturer Part Number:

    BQ2005STR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Part Package Code:

    SOIC

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia, Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    1

  • Additional Feature:

    DUAL BATTERY FAST CHARGER

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    BATTERY MONITOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    5 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8905 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Operating Temperature-Min:

    -20 °C

  • Output Current-Max:

    0.005 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.667 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    300 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5565 mm

BQ2005STR Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a compact layout with the BQ2005STR placed close to the battery, and the sense resistors (Rs) placed as close as possible to the battery terminals. This minimizes noise and ensures accurate voltage and current measurements.
  • Calibration involves adjusting the gain and offset of the voltage and current measurements. TI provides a calibration procedure in the datasheet, which involves measuring the voltage and current at multiple points and adjusting the internal registers accordingly.
  • The 'sleep' pin is used to put the device into a low-power mode, reducing the quiescent current to approximately 10 μA. This is useful for battery-powered systems that require extended battery life.
  • Yes, the BQ2005STR is designed to work with various battery chemistries, including lead-acid, nickel-cadmium (NiCd), nickel-metal hydride (NiMH), and lithium-ion (Li-ion). However, the device may require adjustments to the gain and offset settings depending on the specific battery chemistry used.
  • The BQ2005STR has built-in overvoltage and undervoltage detection capabilities. The device can be configured to generate an interrupt or reset signal when the battery voltage exceeds or falls below a specified threshold. External circuitry can be added to disconnect the battery or take other protective measures.

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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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