ADCs: One-per-Cell Voltage, Plus Separate Temperature, Current, and SafetyPowerLAN, PowerPump, bqWizard are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
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.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing datasheet (Rev. B) | 30 Apr 2009 | |
| Application note | Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. B) | PDF | HTML | 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 | bq78PL114 and bq78PL114S12 Technical Reference Manual (Rev. B) | 25 May 2010 | ||
| Application note | Quick-Start Guide for BQ78PL114 with BQ76PL102 Family Gas Gauges | 26 Apr 2010 | ||
| Application note | Chemistry Selection for the bq78PL114 (Rev. B) | 12 Feb 2010 | ||
| EVM User's guide | bq78PL114 8S EVM (Rev. A) | 14 Jan 2010 | ||
| Application note | bq78PL114 System Design Guidelines | 01 Dec 2009 | ||
| Application note | Configuring the bq78PL114 Cell Count (Rev. A) | 20 May 2009 |
For additional terms or required resources, click any title below to view the detail page where available.
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 (...)
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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.