BQ24125RHLTG4 by Texas Instruments | Battery Chargers | Avnet AMERICAS
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BQ24125RHLTG4

Texas Instruments

Battery Monitoring Li-Ion 2000mA 2.1V to 15.5V 20-Pin VQFN EP T/R

Manufacturer Part #: BQ24125RHLTG4

Avnet Manufacturer Part #: BQ24125RHLTG4


RoHS Compliant

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The bqSWITCHER series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.

The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user- selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.

 

Key Features

  • Enhanced EMI Performance
  • Integrated Power FETs For Up To 2-A Charge Rate
  • Suitable For 1-, 2-, or 3-Cell Li-Ion and Li-Polymer Battery Packs
  • Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
  • High-Accuracy Voltage and Current Regulation
  • Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
  • 20-V Absolute Maximum Voltage Rating on IN and OUT Pins
  • Accurate High-Side Battery Current Sensing
  • Battery Temperature Monitoring
  • Automatic Sleep Mode for Low Power Consumption
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Shutdown and Protection
  • Built-In Battery Detection
  • Available in 20 pin 3,5 mm x 4,5mm QFN Package
  • APPLICATIONS
    • Handheld Products
    • Portable Media Players
    • Industrial and Medical Equipment
    • Portable Equipment
    • Portable DVD Players
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Operating Temperature
    -40 to 125 °C
    Type
    Battery Monitoring
    Battery Type
    Li-Ion
    Lead Finish
    Gold
    Pin Count
    20
    Mounting
    Surface Mount
    Max Processing Temp
    260
    MSL Level
    2
    Output Current
    2000 mA
    Product Dimensions
    4.5 x 3.5 x 0.9 mm
    Supplier Package
    VQFN EP
    Output Voltage
    2.1 to 15.5 V

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542390000

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