LTC6803-4

不推荐用于新设计

12 Channel Multicell Battery Monitor with Addressable Interface, Generation 2

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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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概述

  • Measures Up to 12 Battery Cells in Series
  • Stackable Architecture
  • Supports Multiple Battery Chemistries and Supercapacitors
  • Individually Addressable Serial Interface
  • 0.25% Maximum Total Measurement Error
  • Engineered for ISO26262 Compliant Systems
  • 13ms to Measure All Cells in a System
  • Passive Cell Balancing:
    • Integrated Cell Balancing MOSFETs
    • Ability to Drive External Balancing MOSFETs
  • On-board Temperature Sensor and Thermistor Inputs
  • 1MHz Serial Interface with Packet Error Checking
  • Safe with Random Connection of Cells
  • Built-In Self Tests
  • Delta-Sigma Converter With Built-In Noise Filter
  • Open-Wire Connection Fault Detection
  • 12μA Standby Mode Supply Current
  • High EMI Immunity
  • 44-Lead SSOP Package

The LTC6803 is a 2nd generation, complete battery monitoring IC that includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface. Each LTC6803 can measure up to 12 series connected battery cells or supercapacitors. Many LTC6803 devices can be stacked to measure the voltage of each cell in a long battery string. Each LTC6803-2/LTC6803-4 has an individually addressable serial interface, allowing up to 16 LTC6803-2/LTC6803-4 devices to interface to one control processor and operate simultaneously. Each cell input has an associated MOSFET switch for discharging overcharged cells. The LTC6803-2 connects the bottom of the stack to V– internally. It is pin compatible with the LTC6802-2, providing a drop-in upgrade. The LTC6803-4 separates the bottom of the stack from V–, improving cell 1 measurement accuracy.

The LTC6803 provides a standby mode to reduce supply current to 12μA. Furthermore, the LTC6803 can be powered from an isolated supply, providing a technique to reduce battery stack current draw to zero.

The related LTC6803-1 and LTC6803-3 offer a serial interface that allows the serial ports of multiple LTC6803-1 or LTC6803-3 devices to be daisy chained without optocouplers or isolators.

SPI Interface Isolated V– LTC6802 Pin Compatible
LTC6803-1 Daisy Chain No Yes
LTC6803-2 Addressable No Yes
LTC6803-3 Daisy Chain Yes No
LTC6803-4 Addressable Yes No

Applications

  • Electric and Hybrid Electric Vehicles
  • High Power Portable Equipment
  • Backup Battery Systems
  • Electric Bicycles, Motorcycles, Scooters
LTC6803-4
12 Channel Multicell Battery Monitor with Addressable Interface, Generation 2
Supply Current vs Modes of Operation Product Package 2
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评估套件

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
DC1835A

LTC6803-4（需要 DC590B）| 演示板

立即购买 更多内容

产品详情

评估电路DC1835A是一个电池监控系统，用于演示LTC6803-4集成电路的功能操作。该设计能够连接多达10个内置板间扁平电缆互连特性的器件，并可选择性地将阻性负载施加于任何单元以实现“无源平衡”。此外，该板包含DC-DC升压转换部分，可采用隔离式外部5V电源为IC供电。数据隔离器也采用外部5V电源供电，以便用户SPI数据总线相对于监控的电池浮空。



eval board
schematic 6
schematic 7
schematic 8
schematic 9
schematic 10
schematic 11
DC2064A

停产：LTC3300ILXE-1 | LTC6803IG-2 高频率双向多节电池平衡器——配套板 DC590B

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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DC2100B-C。

DC2064A演示板适用于：
LTC3300-1高效率双向多节电池平衡器
LTC6803-2和-4多节电池的电池堆监控器r
DC1835A
LTC6803-4（需要 DC590B）| 演示板
DC1835A Demo Board DC1835A Demo Board DC1835A Demo Board DC1835A Demo Board DC1835A - Schematic
DC2064A
停产：LTC3300ILXE-1 | LTC6803IG-2 高频率双向多节电池平衡器——配套板 DC590B
DC2064A Demo Board DC2064A Demo Board DC2064A Demo Board DC2064A Demo Board DC2064A Demo Board DC2064A - Schematic

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