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BQ78PL114 状态: ACTIVE

具有 PowerPump 电池平衡的 PowerLAN 网关电池管理控制器

      
         
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数据表

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 BQ76PL102 BQ78PL114
Battery Capacity(Min)(mAh)1000  1000  
Battery Capacity(Max)(mAh)650000  650000  
Communication InterfaceSMBus, SPI  SMBus, SPI  
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  
 样片样片
 无库存库存

产品信息

特性

  • 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.

说明

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.

    

定价/封装/CAD 设计工具/样片

价格（美元）封装样片
器件状态温度 (oC)价格（美元） | Quantity封装 | 引脚顶端标记封装数量 | 封装载体样片
BQ78PL114RGZRACTIVE-40 to 854.50 | 1kuQFN (RGZ) | 48 查看 2500 | LARGE T&R采购样片
BQ78PL114RGZTACTIVE-40 to 854.95 | 1kuQFN (RGZ) | 48 查看 250 | SMALL T&R采购样片

建议零售价格仅用于预算，以美元为单位，并且价格是浮动的。 若要查询有关批量价格、本地货币价格或交付报价的信息，请与当地德州仪器 (TI) 销售办事处或授权经销商联系。

库存

  TI 库存状态 已报告的分销商库存
BQ78PL114RGZR截至 6:52 PM GMT, 2009年 7月 3日截至 6:52 PM GMT, 2009年 7月 3日
 交货周期地区公司库存采购
 4 Weeks无报告
查看经销商		   
BQ78PL114RGZT截至 6:52 PM GMT, 2009年 7月 3日截至 6:52 PM GMT, 2009年 7月 3日
 交货周期地区公司库存采购
 6 Weeks无报告
查看经销商		   

查看中国经销商

**目前尚无法提供交货时间信息。 但是，由于我们的信息每天都会更新，如有疑问，请马上与我们联系。 有关附加信息，请与首选的 TI 授权分销商 联系。

质量与无铅数据

 产品目录DPPM / MTBF / FIT 率
器件环保计划* 铅/焊球涂层MSL 等级/回流焊峰详细信息详细信息
BQ78PL114RGZR  TBD Call TI Call TI查看查看
BQ78PL114RGZT  TBD Call TI Call TI查看查看

* 计划的环保分级：无铅 (RoHS)、无铅（RoHS 豁免）或绿色环保（RoHS 和无 Sb/Br）- 请单击上表中产品目录明细的“查看”链接，以获得最新供货信息和附加产品目录明细。

如果此时没有在线提供您所请求的信息，则请联系 我们的产品信息中心， 以了解关于此信息可用性的信息。

技术文档

BQ78PL114 最新技术文档 Help

数据表

应用手册

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用户指南

工具与软件

名称型号 公司 工具/软件类型
BQ78PL114 + BQ76PL102 评估套件BQ78PL114EVM-001Texas Instruments开发电路板/EVM
bqWizard™ 应用软件BQWIZARD Texas Instruments 应用软件 

型号 名称 产品系列 注释
BQ76PL102   具有 PowerPump 电池平衡的 PowerLAN 双节锂离子电池监视器   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
查看文献 slus850b , see Figure 2 in the BQ78PL114 datasheet.    

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