Texas Instruments: BQ78PL116EVM Evaluation Module

atomar — Wed, 25 Jun 2014 00:52:55 GMT

Current Revision posted to Documents by atomar on 6/25/2014 12:52:55 AM

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Kit Overview

The bq78PL116EVMbq78PL116EVM Evaluation Module can assist users in evaluating the bq78PL116 PowerLAN™ Master Gateway Controller.

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.

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.

Key Applications: Portable Medical Instruments and Test Equipment, Mobility Devices (E-Bike), Uninterruptible Power Supplies and Hand-Held Tools.

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Technical Documents

Learning Center

Type	Description
User Guide	TI: User Guide for BQ78PL116EVM Evaluation Module
User Guide	TI: User Guide for bqWizard Application Software (Rev. C)
User Guide	TI: User Guide for bq78PL11X API (Rev. A)
Datasheet	TI: Datasheet for BQ78PL116 : PowerLAN Master Gateway Controller With PowerPump Cell Balancing Technology (Rev. B)
Solution Guide	TI: Solution Guide for Battery Management Solutions
Application Note	TI: Application Note for Chemistry Selection for the bq78PL114 (Rev. B)
Application Note	TI: Application Note for SBData Commands (PowerLAN(TM) Master Gateway Controller)
Application Note	TI: Application Note for PowerPump(TM) Balancing (Rev. B)

Design Elements

Type	Description
Application Library	TI: Software Code for BQ78PL11X Application Programming Interface
Application Library	TI: Software Code for bqWizard Application

Video

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Kit Features

One bq78PL116 and six bq76PL102 devices with associated support circuitry
Support for 3-to-16 series connected cell packs
- Parallel cell count depends on battery current through sense resistor
Solder bridges on printed-circuit board (PCB) for configuration of odd cell counts
For a typical 3.6-V cell – supports 10.8-V to 57.6-V packs, 72 V maximum
11.2-A discharge and 10-A charge continuous current rating
0.010-Ω (equivalent) shunt resistor, 3 W, 10-mV/A signal to bq78PL116
Supports up to four external (mounted on PCB) and one internal temperature sensor
Header to optionally connect remote temperature sensors
PowerPump™ cell balancing circuitry for all cells. 4.7-μH inductor achieves 70-mA to 90-mA average balancing.
Pack Disconnect MOSFETs – Charge, Discharge, and Precharge
Transient voltage protection of PACK± terminals
Pluggable terminal block connections for cells
SMBus connection compatible with USB-TO-GPIOUSB-TO-GPIO Adapter
EFCI connection for remote disable of Charge and Discharge MOSFETs.
Test points for monitoring of cell voltages and other important circuit nets
High-current, stud-type connections for battery power and pack power
SOC display using five green LEDs and pushbutton switch
Red LED for fuse-blow output indication (SPROT)
EVM Design Files in Mentor Graphics PADs 2009 format available on request
Gerber files available on request

Kit Contents

The Texas Instruments BQ78PL116EVMBQ78PL116EVM Evaluation Module supplied with below contents:

BQ78PL116EVMBQ78PL116EVM Evaluation board

Tags: bq78pl116, bq78pl116evm, texas_instruments