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

• 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

LTC6803HG-4#3ZZPBF，封装：44-Lead SSOP，包装形式及数量：管装，37，工作温度：-40 to 125C，AD官网报价：14.56（100-499个）；12.54（1000+个）

LTC6803HG-4#3ZZTRPBF，封装：44-Lead SSOP，包装形式及数量：卷带，2000，工作温度：-40 to 125C，AD官网报价：14.56（100-499个）；12.54（1000+个）

LTC6803HG-4#PBF，封装：44-Lead SSOP，包装形式及数量：管装，37，工作温度：-40 to 125C，AD官网报价：14.39（100-499个）；12.32（1000+个）

LTC6803HG-4#TRPBF，封装：44-Lead SSOP，包装形式及数量：卷带，2000，工作温度：-40 to 125C，AD官网报价：14.39（100-499个）；12.32（1000+个）

LTC6803IG-4#3ZZPBF，封装：44-Lead SSOP，包装形式及数量：管装，37，工作温度：-40 to 85C，AD官网报价：13.04（100-499个）；11.23（1000+个）

LTC6803IG-4#3ZZTRPBF，封装：44-Lead SSOP，包装形式及数量：卷带，2000，工作温度：-40 to 85C，AD官网报价：13.04（100-499个）；11.23（1000+个）

LTC6803IG-4#PBF，封装：44-Lead SSOP，包装形式及数量：管装，37，工作温度：-40 to 85C，AD官网报价：12.86（100-499个）；11.01（1000+个）

LTC6803IG-4#TRPBF，封装：44-Lead SSOP，包装形式及数量：卷带，2000，工作温度：-40 to 85C，AD官网报价：12.86（100-499个）；11.01（1000+个）

DC2064A：停产：LTC3300ILXE-1 | LTC6803IG-2 高频率双向多节电池平衡器——配套板 DC590B

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

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DC1835A：LTC6803-4（需要 DC590B）| 演示板

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。