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BQ2056T Status: OBSOLETE

Li-Ion Low-Dropout Linear Charge Management IC With AutoCompTM


      
         
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Product Information

Features

  • Significant reduction in charge time with AutoComp charge-rate compensation
  • Ideal for low-dropout linear regulator design
  • 1-cell, 2-cell, and programmable multicell versions
  • Low-cost charger implementation with minimum number of external components
  • Programmable current limit to accommodate any battery size
  • Interface to external trickle charger for reviving deeply discharged batteries
  • High-accuracy charge control
  • Sleep mode for low power consumption
  • Direct battery voltage sense without resistive dividers (bq2056 and bq2056T)
  • Small 8-pin SOIC package

Description

The bq2056 series ICs are low-cost precision linear charge-control devices for Li-Ion batteries. With a minimum number of external components, the bq2056 is a complete low-dropout linear charger. The dropout voltage is typically less than 0.5V when the bq2056 is used with an external PNP transistor or P-channel FET. Features include proprietary automatic charge-rate compensation (AutoComp) and a trickle-charger interface output for reviving deeply discharged cells. The bq2056 supports a single-cell 4.1V pack and the 2056T supports a two-cell 8.2V pack. The bq2056V may be externally programmed for supporting other voltages. All versions feature a sleep mode for low-power applications.

    

Pricing / Packaging / CAD Design Tools / Samples

PackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Package | PinsTop Side MarkingFootprintsSamples
BQ2056TPNOBSOLETE-20 to 70PDIP (P) | 8 View Download CAD Format for this FootprintNot Available
BQ2056TSNOBSOLETE-20 to 70SOIC (D) | 8 View Download CAD Format for this FootprintNot Available
BQ2056TSNTROBSOLETE-20 to 70SOIC (D) | 8 View Download CAD Format for this FootprintNot Available

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Technical Documents

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User Guides

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Tools & Software

NamePart # Company Tool / Software Type
Quick Search Selection Tool for Battery ChargersBATTERY_CHARGERS_SELECTION_TOOLTexas InstrumentsFree Evaluation Tools

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