LTC6820

量产

isoSPI 隔离式通信接口

数据手册 (Rev. C) 产品选型表
产品模型
12
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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产品详情

  • AEC-Q100通过汽车应用认证
  • 1Mbps隔离式SPI数据通信
  • 使用标准变压器实现简单的电气隔离
  • 单条双绞线上的双向接口
  • 支持长达100米的电缆
  • 极低EMI敏感性和辐射
  • 针对高抗噪能力或低功耗应用可配置
  • 设计用于ISO26262兼容系统
  • 在大多数SPI系统中无需软件变更
  • 超低2µA空闲电流
  • 自动唤醒检测
  • 工作温度范围：−40°C至125°C
  • 2.7V至5.5V电源供电
  • 支持1.7V至5.5V的所有逻辑接口
  • 提供16引脚QFN和MSOP封装
LTC6820
isoSPI 隔离式通信接口
LTC6820 Application Circuit LTC6820 Pin Configuration LTC6820 Pin Configuration LTC6820 Performance Graph
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参考资料

数据手册 1

可靠性数据 1

用户手册 4

技术文章 6

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硬件生态系统

部分模型 产品周期 描述
电芯平衡器 2
LT8584
推荐新设计使用 具遥测接口的 2.5A 单片式主动电池电荷平衡器
LTC3300-1
推荐新设计使用 高效率双向多节电池的电池组平衡器
多节电池组监控器 1
LTC6804-1
不推荐用于新设计 多节电池的电池组监视器
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工具及仿真模型

IBIS 模型 1

评估套件

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AD-CELLPACKBM-SL

Cell and Pack Monitoring Kit for Broad Market Applications

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特性和优点

  • Accurate voltage and current measurement
  • Highly scalable and ease of integration
  • Robust isoSPI capability implementable in daisy chain high count
  • Inclusive passive balancing with individual pulse-width modulation
  • Isolated power supply between microcontroller and battery monitoring devices
  • High voltage and current supply measurement
  • Fast overcurrent (OC) measurement
  • Redundancy measurement
  • Modular BMS Solution
  • Ready to use Broadmarket BMS GUI for Evaluation

产品详情

The AD-CELLPACKBM-SL is a complete BMS kit consisting of the EVAL-ADBMS6830BMSW 16-channel cell monitoring module, the EVAL-ADBMS2950-BASIC pack monitoring module, EVAL-ADBMS6822 isoSPI adapter, and a microcontroller board.​

The AD-CELLPACKBM-SL can operate either in embedded mode or through a PC-based graphical user interface. Complete with working software and hardware, as well as software examples, this kit makes it easier for customers to prototype and create connected systems and solutions for BMS applications.​

This package comes with the SDP-K1 as its MCU module, but the BMS components included in this kit are also compatible for use with other controller boards such as the AD-APARD32690-SL or MAX32690EVKIT.​

Upon purchase, the AD-CELLPACKBM-SL kit comes with the following boards and accessories:​.

Boards​

  • 2x EVAL-ADBMS6830BMSW 16-Channel Battery Cell Monitor (can be purchased separately)​
  • 1x EVAL-ADBMS2950-BASIC Battery Pack Monitor (can be purchased separately)​
  • 1x EVAL-ADBMS6822 Dual isoSPI Adapter (can be purchased separately)​
  • 1x EVAL-SDP-CK1Z (SDP-K1) Controller Board (can be purchased separately)​
  • 2x DC2472A Battery Cell Emulator (can be purchased separately)​
  • 1x MAX32625PICO Programming Adapter with 10-pin SWD cable (can be purchased separately)​

Cables and Other Accessories​

  • 2x Cell Connector Block (18-cell connector)​
  • 3x DuraClik isoSPI Twisted Pair Cables​
  • 3x USB Type A to Micro-B Cable​
  • 3x Alligator Clip / Test Lead​

APPLICATIONS

  • IoT Battery Management
  • Industrial Machine Vision
  • Power Tools
  • Mobile Robotics Battery Management
  • Industrial Equipment Battery Monitoring
  • Adaptive Battery Type System Monitoring
  • Portable Energy Storage Systems
  • Electric Two-Wheelers (E2W such as E-scooter, E-bikes)
  • Light Electric Vehicles

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DC2792A

停产：LTC6820演示板 | 双通道主isoSPI适配器

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产品详情

该评估板已停产且不再推荐使用。替代板为DC2792B。

演示电路DC2792A是一款SPI串行转双端口isoSPI适配器，使用一对多路复用的LTC6820 isoSPI收发器。评估isoSPI电池管理(BMS)器件时，该电路板可替代DC1941，但提供第二个isoSPI主机以执行可逆的isoSPI功能（如果可用）。可通过传统的14触头扁平电缆从DC590或DC2026 USB适配器提供SPI接口，或作为Linduino“扩展板”直接安装在DC2026上。两个isoSPI端口为MAIN和AUXiliary，其活动由蓝色LED指示。如果替代DC1941使用，必须使用MAIN端口。DC2792A直接通过主机控制器的USB端口和所使用的USB转串行适配器供电。

eval board
schematic 6
DC2617A

LTC6820 Demo Board | Arduino Interface for isoSPI or Isolated CAN

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产品详情

演示电路 2617A 在单个 Arduino 扩展板上实现了 isoSPI 和隔离式 CAN 接口硬件。它支持 Arduino 兼容控制器板与 isoSPI 和/或 CAN 总线网络通信。

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DC2792B

LTC6820演示板 | 双通道主isoSPI适配器

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产品详情

演示电路DC2792B是一款SPI串行转双端口isoSPI适配器，使用一对多路复用的LTC6820 isoSPI收发器和微型isoSPI连接器（双触点DuraClik）。评估isoSPI电池管理(BMS)器件时，该电路板可在功能上替代DC1941，但提供第二个isoSPI主机以执行可逆的isoSPI功能（如果可用）。可通过传统的14触点扁平电缆从DC590或DC2026 USB适配器提供SPI接口，或作为Linduino扩展板直接安装在DC2026上。两个isoSPI端口为MAIN和AUXiliary，其活动由蓝色LED指示。如果替代DC1941或不可逆的isoSPI网络使用，必须使用MAIN端口。DC2792B直接通过主机控制器的USB端口和所使用的USB转串行适配器供电。

eval board
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DC1941D

LTC6820 isoSPI演示板（需要DC590B）

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产品详情

演示电路1941是一款基于LTC6820的isoSPI™收发器板。LTC6820提供一种通过单双绞线连接实现标准串行外设接口(SPI)器件互连的方法。这种专有2线式接口称为isoSPI。LTC6820将高达1Mbps的SPI信号编码为通过双绞线和简单脉冲变压器传输的差分isoSPI信号。在双绞线的另一端，isoSPI信号可转换回为SPI（使用另一个LTC6820）。


 


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DC2100B-C

12 Cell 4A Controller Board Bi-Directional Active Cell Balancer with LTC3300-1, LTC6804-2 and LTC6820

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产品详情

Demonstration Circuit DC2100B-D is a stackable, bidirectional cell balancer slave board using the LTC6804-2 and the LTC3300-1 ICs to achieve active balancing of up to 12 Li-Ion cells. It requires the DC2100B-C for proper operation. The DC2100B-D uses a single LTC6804-2 Multi-Cell Addressable Battery Stack Monitor IC to measure cell voltages and two LTC3300-1 Synchronous Flyback ICs to provide active cell balancing. The DC2100B-C controller board contains a PIC18F47J53 microcontroller, the LTM2884 isolated USB transceiver, the LTC6804-2, two LTC3300-1 ICs, and the LTC6820 isoSPI Interface IC to facilitate isolated communication. Up to seven DC2100B-D boards can be connected to a DC2100B-C to build a stacked system of eight total boards.
AD-CELLPACKBM-SL
Cell and Pack Monitoring Kit for Broad Market Applications
AD-CELLPACKBM-SL Board Photo Angle View AD-CELLPACKBM-SL Board Photo Top View AD-CELLPACKBM-SL Block Diagram
DC2792A
停产：LTC6820演示板 | 双通道主isoSPI适配器
DC2792A-1 DC2792A-2
DC2617A
LTC6820 Demo Board | Arduino Interface for isoSPI or Isolated CAN
DC2617A
DC2792B
LTC6820演示板 | 双通道主isoSPI适配器
Figure 1. Proper Demo Board Connection (with Ribbon Cable) Figure 2. Proper Demo Board Connection (as Linduino Shield)
DC1907A
OBSOLETE: LTC6820 isoSPI 2-Wire Serial Analyzer
DC1907A Demo Board DC1907A Demo Board DC1907A Demo Board DC1907A Demo Board DC1907A Demo Board DC1907A - Schematic
DC1941D
LTC6820 isoSPI演示板（需要DC590B）
DC1941D Demo Board DC1941D Demo Board DC1941D Demo Board DC1941D Demo Board DC1941D - Schematic
DC2100B-C
12 Cell 4A Controller Board Bi-Directional Active Cell Balancer with LTC3300-1, LTC6804-2 and LTC6820
DC2100B-C Demo Board DC2100B-C Demo Board DC2100B-C Demo Board DC2100B-C Demo Board DC2100B-C Demo Board DC2100B-C Demo Board DC2100B - Demo Board Image DC2100B - Schematic

参考电路
CN0410
集成isoSPI中继器的可编程、3通道LED电流源驱动器
EVAL-CN0410-ARDZ Evaluation Board
EVAL-CN0410-ARDZ Evaluation Board - Top View
EVAL-CN0410-ARDZ Evaluation Board - Bottom View

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