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Li-Ion 4.3V 8-Pin VSON EP T/R, BQ29449DRBR, Texas Instruments

The bq2944x is a secondary overvoltage protection IC for 2-series, 3-series, or 4-series cell Li-Ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit. FUNCTION The voltage of each cell in a battery pack is compared to an internal reference voltage. If any cells reach an overvoltage condition, the bq2944x device starts a timer that provides a delay proportional to the capacitance on the CD pin.Upon expiration of the internal timer, the OUT pin changes from a low state to a high state. An optional latch configuration is available that holds the OUT pin in a high state indefinitely after an overvoltage condition has satisfied the specified delay timer period. The latch is released when the CD pin is shorted to GND.

  • 2-Series, 3-Series, or 4-Series Cell SecondaryProtection
  • External Capacitor-Controlled Delay Timer
  • Low Power Consumption ICC < 2 µA Typical
    [VCELL(ALL) < VPROTECT]
  • High-Accuracy Overvoltage Protection:
    ±25 mV with TA = 0°C to 60°C
  • Fixed Overvoltage Protection Thresholds:
    4.30 V, 4.35 V, 4.40 V, 4.45 V, 4.50 V
  • Small 8L QFN Package
  • APPLICATIONS
    • Second-Level Protection in Li-Ion Battery Packs
      • Notebook Computers
      • Power Tools
      • Portable Equipment and Instrumentation

    • Характеристики

    Battery_type

    Li-Ion
    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=BQ29449&&fileType=pdf
    Schedule_b

    8542390000
    Product_dimensions

    3 x 3 x 0.88 mm
    Pin_count

    8
    Бренд

    Msl_level

    2
    Mounting

    Surface Mount
    Max_processing_temp

    260
    Lead_finish

    Gold
    Htsn

    8542390001
    Eccn

    EAR99
    Country_of_origin

    United States
    Supplier_package

    VSON EP
    Артикул: BQ29449DRBR

    Описание

    The bq2944x is a secondary overvoltage protection IC for 2-series, 3-series, or 4-series cell Li-Ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit. FUNCTION The voltage of each cell in a battery pack is compared to an internal reference voltage. If any cells reach an overvoltage condition, the bq2944x device starts a timer that provides a delay proportional to the capacitance on the CD pin.Upon expiration of the internal timer, the OUT pin changes from a low state to a high state. An optional latch configuration is available that holds the OUT pin in a high state indefinitely after an overvoltage condition has satisfied the specified delay timer period. The latch is released when the CD pin is shorted to GND.

  • 2-Series, 3-Series, or 4-Series Cell SecondaryProtection
  • External Capacitor-Controlled Delay Timer
  • Low Power Consumption ICC < 2 µA Typical
    [VCELL(ALL) < VPROTECT]
  • High-Accuracy Overvoltage Protection:
    ±25 mV with TA = 0°C to 60°C
  • Fixed Overvoltage Protection Thresholds:
    4.30 V, 4.35 V, 4.40 V, 4.45 V, 4.50 V
  • Small 8L QFN Package
  • APPLICATIONS
    • Second-Level Protection in Li-Ion Battery Packs
      • Notebook Computers
      • Power Tools
      • Portable Equipment and Instrumentation

    • Детали

    Battery_type

    Li-Ion
    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=BQ29449&&fileType=pdf
    Schedule_b

    8542390000
    Product_dimensions

    3 x 3 x 0.88 mm
    Pin_count

    8
    Бренд

    Msl_level

    2
    Mounting

    Surface Mount
    Max_processing_temp

    260
    Lead_finish

    Gold
    Htsn

    8542390001
    Eccn

    EAR99
    Country_of_origin

    United States
    Supplier_package

    VSON EP

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