BQ78PL114
- 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.
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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing 数据表 (Rev. B) | 2009-4-30 | |||
| 应用手册 | Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. B) | PDF | HTML | 2019-7-12 | |||
| 应用手册 | PowerPump(TM) Balancing (Rev. B) | 2011-10-26 | ||||
| 应用手册 | SBData Commands For PowerLAN(TM) Master Gateway Controller | 2011-4-14 | ||||
| 应用手册 | What is a .tmap File? (Rev. A) | 2011-3-10 | ||||
| 用户指南 | bq78PL114 and bq78PL114S12 Technical Reference Manual (Rev. B) | 2010-5-25 | ||||
| 应用手册 | Quick-Start Guide for BQ78PL114 with BQ76PL102 Family Gas Gauges | 2010-4-26 | ||||
| 应用手册 | Chemistry Selection for the bq78PL114 (Rev. B) | 2010-2-12 | ||||
| 应用手册 | bq78PL114 System Design Guidelines | 2009-12-1 | ||||
| 应用手册 | Configuring the bq78PL114 Cell Count (Rev. A) | 2009-5-20 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
BQ78PL11XAPI-SW — bq78PL11X Application Programming Interface Software
此应用编程接口 (API) 设计用于支持基于 PowerLAN 主网关控制器的硬件的生产流程。此方法为校准、配置和更新固件提供了富接口。该 API 采用 .NET 框架，并且包含 COM 可视接口。特别要指出的是，该 API 适用于具有 FW5000 升级的 bq78PL114，它称为 bq78PL114S12 和 bq78PL116
USB2GPIO-LOADER-SW — USB-TO-GPIO EVM 固件加载程序
USB-TO-GPIO EVM 附带了一个与 HCE-BMS 产品 (bq78PL114) 不兼容的固件。USB-TO-GPIO EVM 必须进行重新编程以实现与 BMS-HCE 器件配合使用。此固件加载程序用于改造 USB-TO-GPIO EVM 中的固件，从而使其可与 bq78PL114EVM 一起使用。
BQWIZARD — bqWizard Setup Version 3.1
bqWizard™ 应用软件允许用户对系统中电池组和单元的状况或状态进行评估。此软件详细介绍了评估模块和用户定制电池组的工作原理。该软件用于配置和设置参数。它可用于对 TI 的电池管理器件和低速生产进行初始评估。
注意：请始终将您的 bqWizard 软件升级至此页所示版本。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RGZ) | 48 | Ultra Librarian |