BQ2050 Status: ACTIVE

Li-Ion Gas Gauge With 1-Wire (DQ) Interface And 5 LED Drivers

      
         
Alert me about changes<br/>to this product


Datasheet

Download - PDF Icon

 BQ2050
Battery Capacity(Min)(mAh)500  
Battery Capacity(Max)(mAh)6000  
Communication InterfaceDQ  
Pin/Package16SOIC  
Approx. Price (US$) 3.85 | 1ku  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • BQ2040: Multi-Chemistry Smart Battery System (SBS) 1.0 Compliant Gas Gauge With 4 LED Drivers
  • BQ2050H: Li-Ion Gas Gauge With High-Speed 1-Wire (HDQ) Interface And 5 LED Drivers
  • TPS60230: 5-Channel, Current-regulated 125-mA Charge Pump for White LED Backlight in 3x3 QFN
  • TPS75901: Single Output LDO, 7.5A, Adj.(1.22 to 5.0V), Fast Transient Response, Low Quiescent Current
  • TPS40200: Wide Input Non-Synchronous Buck DC/DC Controller

Product Information

Features

  • Conservative and repeatable measurement of available capacity in Lithium Ion rechargeable batteries
  • Designed for battery pack integration
    • 120µA typical operating current
    • Small size enables implementations in as little as ½ square inch of PCB
  • Integrate within a system or as a stand-alone device
    • Display capacity via single-wire serial communication port or direct drive of LEDs
  • Measurements compensated for current and temperature
  • Self-discharge compensation using internal temperature sensor
  • 16-pin narrow SOIC

Description

The bq2050 Lithium Ion Power Gauge™ IC is intended for battery-pack or in-system installation to maintain an accurate record of available battery capacity. The IC monitors a voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery. Compensations for battery temperature and rate of charge or discharge are applied to the charge, discharge, and self-discharge calculations to provide available capacity information across a wide range of operating conditions. Battery capacity is automatically recalibrated, or "learned," in the course of a discharge cycle from full to empty.

Nominal available capacity may be directly indicated using a five-segment LED display. These segments are used to graphically indicate available capacity. The bq2050 supports a simple single-line bidirectional serial link to an external processor (common ground). The bq2050 outputs battery information in response to external commands over the serial link.

The bq2050 may operate directly from one cell (VBAT > 3V). With the REF output and an external transistor, a simple, inexpensive regulator can be built for systems with more than one series cell.

Internal registers include available capacity, temperature, scaled available energy, battery ID, battery status, and programming pin settings. To support subassembly testing, the outputs may also be controlled. The external processor may also overwrite some of the bq2050 power gauge data registers.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ2050SN-D119ACTIVE0 to 704.20 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2050SN-D119G4ACTIVE0 to 704.20 | 1kuSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2050SN-D119TRACTIVE0 to 703.85 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ2050SN-D119TRG4ACTIVE0 to 703.85 | 1kuSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

  TI Inventory Status Reported Distributor Inventory
BQ2050SN-D119As of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 14 Weeks AmericasAvnet 400
 DigiKey >1k
 Mouser Electronics 245
 Rochester Electronics >1k
BQ2050SN-D119G4As of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 14 Weeks AmericasDigiKey  Available
BQ2050SN-D119TRAs of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 14 Weeks AmericasAvnet >1k
 DigiKey  Available
BQ2050SN-D119TRG4As of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 14 Weeks AmericasDigiKey  Available
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
BQ2050SN-D119 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2050SN-D119G4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2050SN-D119TR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2050SN-D119TRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for BQ2050 Help

Datasheet

Application Notes

View Application Notes for Battery Fuel Gauges

User Guides

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
BQ2040 Multi-Chemistry Smart Battery System (SBS) 1.0 Compliant Gas Gauge With 4 LED Drivers   TI customers also evaluated this product.
BQ2050H Li-Ion Gas Gauge With High-Speed 1-Wire (HDQ) Interface And 5 LED Drivers   TI customers also evaluated this product.
TPS60230 5-Channel, Current-regulated 125-mA Charge Pump for White LED Backlight in 3x3 QFN INDUCTORLESS DC/DC REGULATORS (CHARGE PUMPS)-STEP-UP CHARGE PUMP REGULATORS TI customers also evaluated this product.
TPS75901 Single Output LDO, 7.5A, Adj.(1.22 to 5.0V), Fast Transient Response, Low Quiescent Current LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS40200 Wide Input Non-Synchronous Buck DC/DC Controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS40055 Wide Input (8V-40V) up to 1MHz Frequency Synchronous Buck Controller, source/sink NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS3809K33 3-Pin Supply Voltage Supervisor POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.
TPS65150 5V/2A(I/O), 4-CH Multi-Converter w/ VCOM Op-Amp & GPM for LCD Bias, 24 QFN/TSSOP LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS TI customers also evaluated this product.
TPS70345 Dual-Output Low-Dropout (LDO) Voltage Regulators LINEAR REGULATORS-DUAL CHANNEL LDO TI customers also evaluated this product.
REF3140 20ppm/Degrees C Max, 100uA, SOT23-3 Series Voltage Reference REFERENCES-SERIES VOLTAGE REFERENCES TI customers also evaluated this product.
TPS54386 Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
LM337 3 Pin 1.5A Adjustable Negative Voltage Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.

Support and Community

Customer Tags Help

Most Popular Tags for BQ2050:

View All Tags

Other Support



Click 

Here