Fast Charge Management Li-Ion/NiCD/NiMH Packs 2000mA 8-Pin SOIC Tube, BQ2000SN-B5G4, Texas Instruments

The bq2000 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The bq2000 chooses the proper battery chemistry (either nickel or lithium) and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable, undercharged, or overcharged conditions, and allows accurate and safe termination of fast chargeDepending on the chemistry, the bq2000 provides a number of charge termination criteria:Peak voltage, PVD (for NiCd and NiMH)Minimum charge current (for Li-Ion)Maximum temperatureMaximum charge timeFor safety, the bq2000 inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq2000 uses trickle-charge to condition the battery. For NiMH batteries, the bq2000 provides an optional top-off charge to maximize the battery capacity.The integrated high-speed comparator allows the bq2000 to be the basis for a complete, high-efficiency battery charger circuit for both nickel-based and lithium-based chemistries.

  • Safe Management of Fast Charge for NiCd, NiMH, or Li-Ion Battery Packs
  • High-Frequency Switching Controller for Efficient and Simple Charger Design
  • Pre-Charge Qualification for Detecting Shorted, Damaged, or Overheated Cells
  • Fast-Charge Termination by Peak Voltage (PVD) for Nickel chemistries, Minimum Current for Li-Ion chemistries, Maximum Temperature, and Maximum Charge Time
  • Selectable Top-Off Mode for Achieving Maximum Capacity in NiMH Batteries
  • Programmable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge Maintenance
  • Built-in Battery Removal and Insertion Detection
  • Sleep Mode for Low Power Consumption
  • APPLICATIONS
    • Multi-Chemistry Charger
    • Nickel Charger
    • High-Power, Multi-Cell Charger
  • Peak voltage, PVD (for NiCd and NiMH)
  • Minimum charge current (for Li-Ion)
  • Maximum temperature
  • Maximum charge time
  • Характеристики

    Battery_type

    Li-Ion, NiCD, NiMH Packs

    Operating_temperature

    -20 to 70 °C

    Supplier_package

    SOIC

    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=BQ2000&&fileType=pdf

    Schedule_b

    8542390000

    Product_dimensions

    5 x 4 x 1.5 mm

    Pin_count

    8

    Output_current

    2 A

    Operating_supply_voltage

    5 V

    Msl_level

    1

    Бренд

    Mounting

    Surface Mount

    Max_processing_temp

    260

    Lead_finish

    Gold

    Kind

    Fast Charge Management

    Htsn

    8542390001

    Eccn

    EAR99

    Country_of_origin

    United States

    Артикул: BQ2000SN-B5G4

    Описание

    The bq2000 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The bq2000 chooses the proper battery chemistry (either nickel or lithium) and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable, undercharged, or overcharged conditions, and allows accurate and safe termination of fast chargeDepending on the chemistry, the bq2000 provides a number of charge termination criteria:Peak voltage, PVD (for NiCd and NiMH)Minimum charge current (for Li-Ion)Maximum temperatureMaximum charge timeFor safety, the bq2000 inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq2000 uses trickle-charge to condition the battery. For NiMH batteries, the bq2000 provides an optional top-off charge to maximize the battery capacity.The integrated high-speed comparator allows the bq2000 to be the basis for a complete, high-efficiency battery charger circuit for both nickel-based and lithium-based chemistries.

  • Safe Management of Fast Charge for NiCd, NiMH, or Li-Ion Battery Packs
  • High-Frequency Switching Controller for Efficient and Simple Charger Design
  • Pre-Charge Qualification for Detecting Shorted, Damaged, or Overheated Cells
  • Fast-Charge Termination by Peak Voltage (PVD) for Nickel chemistries, Minimum Current for Li-Ion chemistries, Maximum Temperature, and Maximum Charge Time
  • Selectable Top-Off Mode for Achieving Maximum Capacity in NiMH Batteries
  • Programmable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge Maintenance
  • Built-in Battery Removal and Insertion Detection
  • Sleep Mode for Low Power Consumption
  • APPLICATIONS
    • Multi-Chemistry Charger
    • Nickel Charger
    • High-Power, Multi-Cell Charger
  • Peak voltage, PVD (for NiCd and NiMH)
  • Minimum charge current (for Li-Ion)
  • Maximum temperature
  • Maximum charge time
  • Детали

    Battery_type

    Li-Ion, NiCD, NiMH Packs

    Operating_temperature

    -20 to 70 °C

    Supplier_package

    SOIC

    Specifications

    http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=BQ2000&&fileType=pdf

    Schedule_b

    8542390000

    Product_dimensions

    5 x 4 x 1.5 mm

    Pin_count

    8

    Output_current

    2 A

    Operating_supply_voltage

    5 V

    Msl_level

    1

    Бренд

    Mounting

    Surface Mount

    Max_processing_temp

    260

    Lead_finish

    Gold

    Kind

    Fast Charge Management

    Htsn

    8542390001

    Eccn

    EAR99

    Country_of_origin

    United States