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BQ771809DPJR - Texas Instruments

Description: Family 2-5S Overvoltage Protector with Internal Delay Timer

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BQ771809DPJR - Texas Instruments - PCB symbol
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PCB Footprints
BQ771809DPJR - Texas Instruments PCB footprint - Small Outline No-lead - Small Outline No-lead - DPJ0008A
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BQ771809DPJR - Texas Instruments - 3D model - Small Outline No-lead - DPJ0008A
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BQ771809DPJR Details

  • Manufacturer Part Number:

    BQ771809DPJR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    Battery over-voltage protection(Min/Max)(V) : 3.85 and 4.65

  • Analog IC - Other Type:

    BATTERY PROTECTOR

  • Input Voltage-Max:

    25 V

  • JESD-30 Code:

    R-PDSO-N8

  • JESD-609 Code:

    e4

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Terminals:

    8

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max (Isup):

    0.002 mA

  • Supply Voltage-Max (Vsup):

    25 V

  • Surface Mount:

    YES

  • Terminal Finish:

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

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Threshold Voltage-Nom:

    +4.2V

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

    30

  • Width:

    3 mm

BQ771809DPJR Frequently Asked Questions (FAQs)

  • TI recommends a 2-layer or 4-layer PCB with a solid ground plane on the bottom layer to minimize thermal resistance. A thermal pad on the underside of the IC should be connected to the ground plane.
  • Use a high-precision voltage reference (e.g., TLV7031) and ensure the ADC input pins are properly filtered and decoupled to minimize noise. Also, calibrate the ADC using the internal calibration feature.
  • The maximum allowed voltage on the VCC pin is 5.5V. Exceeding this voltage may damage the IC.
  • Yes, the BQ771809DPJR is designed to work with various lithium-ion battery chemistries, including lithium-cobalt oxide, lithium-iron phosphate, and lithium-nickel-manganese-cobalt oxide. However, the specific battery chemistry may require adjustments to the charge/discharge settings and protection thresholds.
  • The BQ771809DPJR has built-in cell balancing functionality. Connect the cell balancing pins to the corresponding battery cells, and configure the IC to enable cell balancing through the I2C interface.

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BQ771809DPJR Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like BQ771, or try a keyword search, such as Power Management Circuits

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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BQ771809DPJR Alternates

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Part Image BQ771809DPJT Texas Instruments

BATTERY PROTECTOR, +4.2V, PDSO8