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Battery Protection Li-Ion 4.35V 8-Pin TSSOP Tube, BQ29400PWR, Texas Instruments

The bq29400, bq29400A, bq29401, and bq29405 are BiCMOS secondary protection ICs for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. They include a programmable delay circuit for over voltage detection time. Each cell in a multiple cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2940x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.

  • 2-, 3-, or 4-Cell Secondary Protection
  • Low Power Consumption ICC < 2 µA [VCELL(ALL) <>(PROTECT)]
  • High Accuracy Over Sense Voltage:
    • bq29400: 4.35 V ±25 mV
    • bq29400A: 4.40 V ±25 mV
    • bq29401: 4.45 V ±25 mV
    • bq29405: 4.65 V ±25 mV
  • Prefixed Protection Threshold Voltage
  • Programmable Delay Time
  • High Power Supply Ripple Rejection
  • Stable During Pulse Charge Operation
  • APPLICATIONS
    • 2nd Level Protection in Lion Battery Packs in
      • Notebook PCs
      • Portable Instrumentation
      • Medical and Test Equipment

    • Характеристики

    Battery_type

    Li-Ion
    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=BQ29405&&fileType=pdf
    Schedule_b

    8542390000
    Product_dimensions

    3 x 4.4 x 1 mm
    Pin_count

    8
    Output_voltage

    4.35 V
    Operating_temperature

    -25 to 85 °C
    Бренд

    Msl_level

    1
    Mounting

    Surface Mount
    Max_processing_temp

    260, 300
    Lead_finish

    Gold
    Kind

    Battery Protection
    Htsn

    8542390001
    Eccn

    EAR99
    Country_of_origin

    United States
    Supplier_package

    TSSOP
    Артикул: BQ29400PWR

    Описание

    The bq29400, bq29400A, bq29401, and bq29405 are BiCMOS secondary protection ICs for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. They include a programmable delay circuit for over voltage detection time. Each cell in a multiple cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2940x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.

  • 2-, 3-, or 4-Cell Secondary Protection
  • Low Power Consumption ICC < 2 µA [VCELL(ALL) <>(PROTECT)]
  • High Accuracy Over Sense Voltage:
    • bq29400: 4.35 V ±25 mV
    • bq29400A: 4.40 V ±25 mV
    • bq29401: 4.45 V ±25 mV
    • bq29405: 4.65 V ±25 mV
  • Prefixed Protection Threshold Voltage
  • Programmable Delay Time
  • High Power Supply Ripple Rejection
  • Stable During Pulse Charge Operation
  • APPLICATIONS
    • 2nd Level Protection in Lion Battery Packs in
      • Notebook PCs
      • Portable Instrumentation
      • Medical and Test Equipment

    • Детали

    Battery_type

    Li-Ion
    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=BQ29405&&fileType=pdf
    Schedule_b

    8542390000
    Product_dimensions

    3 x 4.4 x 1 mm
    Pin_count

    8
    Output_voltage

    4.35 V
    Operating_temperature

    -25 to 85 °C
    Бренд

    Msl_level

    1
    Mounting

    Surface Mount
    Max_processing_temp

    260, 300
    Lead_finish

    Gold
    Kind

    Battery Protection
    Htsn

    8542390001
    Eccn

    EAR99
    Country_of_origin

    United States
    Supplier_package

    TSSOP

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