TI Home > Semiconductors > Power Management > Battery Management > Battery Fuel Gauges >

BQ78PL114 Status: ACTIVE

PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing


      
         
Alert me about changes<br/>to this product

 BQ76PL102 BQ78PL114
Battery Capacity(Min)(mAh)1000  1000  
Battery Capacity(Max)(mAh)650000  650000  
Communication InterfaceSMBus  SMBus  
Capacity Indication LED,LCD,EPD  
# Series Cells1, 2  3,4,5,6,7,8,9,10,11,12  
Pin/Package16QFN  48QFN  
Approx. Price (US$)  4.50 | 1ku  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ76PL102: PowerLAN Dual-Cell Li-Ion Battery Monitor with PowerPump Cell Balancing
  • BQ20Z40: SBS Compliant Gas Gauge with Impedance Track Technology for use with BQ29330
  • BQ6400: Single Chip Smart Battery Solution with PowerPump™ Cell Balancing Technology
  • BQ77PL900: 5-10 cell Li-ion Battery protection & AFE
  • BQ29330: Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE
  • BQ2954: Switch-mode Li-Ion Charge Controller

More Related Products

Product Information

Features

  • bq78PL114 Designed for Managing 3- to 8-Series-Cell Battery Systems
  • bq78PL114S12 Firmware Upgrade Supports 3- to 12-Series-Cell Battery Systems
    • Adds Support for LCD and Electronic Paper Displays or EPDs
    • Configurable for 11-A, 26-A, or 110-A Operating Currents
  • Systems With More Than Four Series Cells Require External bq76PL102 Dual-Cell Monitors
  • SmartSafety Features:
    • Prevention: Optimal Cell Management
    • Diagnosis: Improved Sensing of Cell Problems
    • Fail Safe: Detection of Event Precursors
  • Rate-of-Change Detection of All Important Cell Characteristics:
    • Voltage
    • Impedance
    • Cell Temperature
  • PowerPump Technology Transfers Charge Efficiently From Cell to Cell During All Operating Conditions, Resulting in Longer Run Time and Cell Life
    • bq78PL114S12 Adds User-Configurable PowerPump Cell-Balancing Modes
  • High-Resolution 18-Bit Integrating Delta-Sigma Coulomb Counter for Precise Charge-Flow Measurements and Gas Gauging
  • Multiple Independent ADCs: One-per-Cell Voltage, Plus Separate Temperature, Current, and Safety
  • Simultaneous, Synchronous Measurement of Pack Current and Individual Cell Voltages
  • Very Low Power Consumption
    • bq78PL114: < 250 µA Active, < 150 µA Standby, < 40 µA Ship, and < 1 µA Undervoltage Shutdown
    • bq78PL114S12: < 300 µA Active, < 185 µA Standby, < 85 µA Ship, and < 1 µA Undervoltage Shutdown
  • Accurate, Advanced Temperature Monitoring of Cells and MOSFETs With up to 12 Sensors
  • Fail-Safe Operation of Pack Protection Circuits: Up to Three Power MOSFETs and One Secondary Safety Output (Fuse)
  • Fully Programmable Voltage, Current, Balance, and Temperature-Protection Features
  • External Inputs for Auxiliary MOSFET Control
  • Smart Battery System 1.1 Compliant via SMBus
  • APPLICATIONS
    • Portable Medical Instruments and Test Equipment
    • Mobility Devices (E-Bike)
    • Uninterruptible Power Supplies and Hand-Held Tools

PowerLAN, PowerPump, bqWizard are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.

Description

The bq78PL114 master gateway battery controller is part of a complete Li-Ion control, monitoring, and safety solution designed for large series cell strings.

The bq78PL114 and bq78PL114S12 along with bq76PL102 PowerLAN™ dual-cell monitors provide complete battery-system control, communications, and safety functions for a structure of three up to twelve series cells. This PowerLAN system provides simultaneous, synchronized voltage and current measurements using one A/D per-cell technology. This eliminates system-induced noise from measurements and allows the precise, continuous, real-time calculation of cell impedance under all operating conditions, even during widely fluctuating load conditions.

PowerPump technology transfers charge between cells to balance their voltage and capacity. Balancing is possible during all battery modes: charge, discharge, and rest. Highly efficient charge-transfer circuitry nearly eliminates energy loss while providing true real-time balance between cells, resulting in longer run-time and improved cycle life.

Temperature is sensed by up to 12 external sensors and one on-chip sensor. This permits accurate temperature monitoring of each cell individually. Firmware is then able to compensate for the temperature-induced effects on capacity, impedance, and OCV on a cell-by-cell basis, resulting in superior charge/ discharge and balancing control.

External MOSFET control inputs provide user- definable direct hardware control over MOSFET states. Smart control prevents excessive current through MOSFET body diodes. Auxiliary inputs can be used for enhanced safety and control in large multicell arrays.

The bq78PL114 is completely user-configurable, with parametric tables in flash memory to suit a variety of cell chemistries, operating conditions, safety controls, and data reporting needs. It is easily configured using the supplied bqWizard graphical user interface (GUI). The device is fully programmed and requires no algorithm or firmware development.

The bq78PL114 can be upgraded to the bq78PL114S12 by downloading the bq78PL114S12 firmware. The firmware can be downloaded using the bqWizard application or during manufacturing. Upgrading to the bq78Pl114S12 changes the functionality of the LED1-LED5, LEDEN, and N/C pin #29. The bq78PL114S12 pin functions of LED1/SEG1-LED5/SEG5, PSH/BP/TP, and FIELD support LED, LCD, and electronic paper displays (EPDs). The user can configure the bq78PL114S12 for the desired display type.

In this document all descriptions for the bq78PL114 apply to the bq78PL114S12 except where different bq78PL114S12 functionality is specifically described.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
BQ78PL114RGZRACTIVE-40 to 854.50 | 1kuQFN (RGZ) | 48 View 2500 | LARGE T&R
BQ78PL114RGZTACTIVE-40 to 854.95 | 1kuQFN (RGZ) | 48 View 250 | SMALL T&RPurchase 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

Reported Distributor Inventory as of 12:05 PM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksBQ78PL114RGZR
AmericasArrow >1k
WorldwideDigiKey >1k
TI Lead Time*: 20 WeeksBQ78PL114RGZT
AmericasAvnet 250
Newark 70
AsiaFarnell Asia 163
EuropeArrow Northern Europe 250
Arrow Southern Europe 250
Farnell 160
WorldwideDigiKey  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
BQ78PL114RGZR  TBD Call TI Call TIViewView
BQ78PL114RGZT  TBD Call TI Call TIViewView

* 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 BQ78PL114 Help

Datasheet

Application Notes

View Application Notes for Battery Fuel Gauges

User Guides

Tools & Software

NamePart # Company Tool / Software Type
BQ78PL114 + BQ76PL102 Evaluation KitBQ78PL114EVM-001Texas InstrumentsDevelopment Boards/EVMs
bqWizard™ Application SoftwareBQWIZARD Texas Instruments Application Software 

Part # Name Product Family Comments
BQ76PL102   PowerLAN Dual-Cell Li-Ion Battery Monitor with PowerPump Cell Balancing   BATTERY MANAGEMENT - BATTERY FUEL GAUGES   Together with a bq78PL114 Master Gateway Battery Controller, the bq76PL102 forms a complete battery monitoring and management system for higher cell‐count applications
See Literature slus850b , see Figure 2 in the BQ78PL114 datasheet.    
Customers Who Evaluated This Product Also Evaluated...
BQ76PL102 PowerLAN Dual-Cell Li-Ion Battery Monitor with PowerPump Cell Balancing BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ20Z40 SBS Compliant Gas Gauge with Impedance Track Technology for use with BQ29330 BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ6400 Single Chip Smart Battery Solution with PowerPump™ Cell Balancing Technology BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ20Z95 SBS 1.1-Compliant Gas Gauge Enabled w/Impedance Track BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ2084-V143 SBS v1.1 Compliant Gas Gauge for use with the BQ29312A BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ20Z45 SBS 1.1 compliant Gas Gauge with Impedance Track Technology and Advanced Charging Algorithm BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ77PL900 5-10 cell Li-ion Battery protection & AFE BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ29330 Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ2954 Switch-mode Li-Ion Charge Controller BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.

All End-Equipment

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here