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BQ27427YZFR - Texas Instruments

Description: Single-cell battery fuel gauge with pre-programmed chemistry and integrated sense resistor

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BQ27427YZFR - Texas Instruments - PCB symbol
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PCB Footprints
BQ27427YZFR - Texas Instruments PCB footprint - BGA - BGA - YZF0009_2023
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3D Models
BQ27427YZFR - Texas Instruments - 3D model - BGA - YZF0009_2023
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BQ27427YZFR Details

  • Manufacturer Part Number:

    BQ27427YZFR

  • 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

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    BATTERY GAUGE

  • JESD-30 Code:

    R-XBGA-B9

  • JESD-609 Code:

    e1

  • Length:

    1.6205 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    9

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    VFBGA

  • Package Equivalence Code:

    BGA9,3X3,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    GRID ARRAY, VERY THIN PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.625 mm

  • Supply Voltage-Max (Vsup):

    4.5 V

  • Supply Voltage-Min (Vsup):

    2.45 V

  • Supply Voltage-Nom (Vsup):

    3.6 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Tin/Silver/Copper (Sn/Ag/Cu)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    BOTTOM

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

    30

  • Width:

    1.58 mm

BQ27427YZFR Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate layer for the fuel gauge circuitry is recommended. Keep the sense resistors close to the battery and use a Kelvin connection to minimize errors.
  • Use the TI-provided calibration software and follow the application note guidelines to create a custom calibration file. This involves measuring the battery's open-circuit voltage and impedance at various states of charge.
  • The BQ27427YZFR is designed to support up to 16 series-connected batteries. However, the maximum number of batteries may be limited by the system's power requirements and the need for balanced charging.
  • Yes, the BQ27427YZFR is rated for operation up to 85°C. However, the accuracy of the fuel gauge may be affected at high temperatures. Consider using thermal compensation and calibration to ensure accurate results.
  • Use the BQ27427YZFR's built-in battery health monitoring features, such as cycle count and capacity fade tracking. Implement a state machine to track the battery's state of health and provide alerts or notifications when necessary.

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BQ27427YZFR Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like BQ274, 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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