Product details

Cell chemistry Li-Ion/Li-Polymer Number of series cells 2-4 Cells, >4 Cells Communication interface SMBus Battery capacity (Min) (mAh) 1000 Battery capacity (Max) (mAh) 32767 Implementation Pack External capacity indication EPD, LCD Features Coulomb Counter Operating temperature range (C) -40 to 85 Cell balancing
Cell chemistry Li-Ion/Li-Polymer Number of series cells 2-4 Cells, >4 Cells Communication interface SMBus Battery capacity (Min) (mAh) 1000 Battery capacity (Max) (mAh) 32767 Implementation Pack External capacity indication EPD, LCD Features Coulomb Counter Operating temperature range (C) -40 to 85 Cell balancing
VQFN (RGZ) 48 49 mm² 7 x 7
  • bq78PL116 Designed for Managing 3- to 16-Series-Cell Battery Systems
    • 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:
    • Impedance
    • Cell Temperature
  • PowerPump Technology Transfers Charge Efficiently From Cell to Cell
    During All Operating Conditions, Resulting in Longer Run Time and Cell Life
    • Includes 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
    • < 400 µA Active, < 185 µA Standby, < 85 µA Ship,
      and < 1 µA Undervoltage Shutdown
  • Accurate, Advanced Temperature Monitoring of Cells and MOSFETs
    With up to 4 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.

  • bq78PL116 Designed for Managing 3- to 16-Series-Cell Battery Systems
    • 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:
    • Impedance
    • Cell Temperature
  • PowerPump Technology Transfers Charge Efficiently From Cell to Cell
    During All Operating Conditions, Resulting in Longer Run Time and Cell Life
    • Includes 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
    • < 400 µA Active, < 185 µA Standby, < 85 µA Ship,
      and < 1 µA Undervoltage Shutdown
  • Accurate, Advanced Temperature Monitoring of Cells and MOSFETs
    With up to 4 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.

The bq78PL116 master gateway battery controller is part of a complete Li-Ion control, monitoring, and safety solution designed for large series cell strings.

The bq78PL116 along with bq76PL102 PowerLAN™ dual-cell monitors provide complete battery-system control, communications, and safety functions for a structure of three up to 16 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 4 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 bq78PL116 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 bq78PL116 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 bq78PL116 for the desired display type.

The bq78PL116 master gateway battery controller is part of a complete Li-Ion control, monitoring, and safety solution designed for large series cell strings.

The bq78PL116 along with bq76PL102 PowerLAN™ dual-cell monitors provide complete battery-system control, communications, and safety functions for a structure of three up to 16 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 4 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 bq78PL116 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 bq78PL116 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 bq78PL116 for the desired display type.

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Technical documentation

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Type Title Date
* Data sheet PowerLAN Master Gateway Controller With PowerPump Cell Balancing Technology datasheet (Rev. B) 05 Jan 2011
Application note Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. B) 12 Jul 2019
Application note PowerPump(TM) Balancing (Rev. B) 26 Oct 2011
Application note SBData Commands For PowerLAN(TM) Master Gateway Controller 14 Apr 2011
Application note What is a .tmap File? (Rev. A) 10 Mar 2011
User guide bq78PL116 Technical Reference Manual 21 Feb 2011
User guide bqWizard™ Application Software (Rev. C) 25 Jan 2011
User guide bq78PL116EVM Evaluation Module 19 Jan 2011
Application note Chemistry Selection for the bq78PL114 (Rev. B) 12 Feb 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Application software & framework

BQWIZARD — bqWizard™ Application Software

The bqWizard™ application software allows the user to evaluate the condition, or state, of the battery Pack and Cells in the system. This software gives detailed insight into the workings of evaluation modules and user custom battery packs. The software is used to configure and setup (...)
Driver or library

BQ78PL11XAPI-SW — BQ78PL11X Application Programming Interface Software

This Application Programming Interface (API) is designed to support the production flow ofa PowerLAN Master Gateway controller based hardware. The methods provide a rich interfacefor calibrating, configuring, and updating firmware. This API is built on the .NET framework andcontains a COM visible (...)
Support software

bqWizard Application Software v3.2

SLUC444.ZIP (15025 KB)
Package Pins Download
VQFN (RGZ) 48 View options

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