概览
优势和特点
- 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
产品详情
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
产品生命周期
量产
该产品系列中至少有一个型号已量产并可供采购。该产品适合用于新设计，但也可能有更新的替代产品。
评估套件 (2)
参考资料
-
R525 Reliability Data3/26/2018
设计资源
ADI始终把满足您可靠性水平的产品放在首要位置。我们通过在所有产品、工艺设计和制造过程中引入高质量和可靠性检查实践这一承诺。发运的产品实现“零缺陷”始终是我们的目标。
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LTC6803HG-4#3ZZPBF | 材料声明 | 质量和可靠性 | 44-Lead SSOP | |
| LTC6803HG-4#3ZZTRPBF | 材料声明 | 质量和可靠性 | 44-Lead SSOP | |
| LTC6803HG-4#PBF | 材料声明 | 质量和可靠性 | 44-Lead SSOP | |
| LTC6803HG-4#TRPBF | 材料声明 | 质量和可靠性 | 44-Lead SSOP | |
| LTC6803IG-4#3ZZPBF | 材料声明 | 质量和可靠性 | 44-Lead SSOP | |
| LTC6803IG-4#3ZZTRPBF | 材料声明 | 质量和可靠性 | 44-Lead SSOP | |
| LTC6803IG-4#PBF | 材料声明 | 质量和可靠性 | 44-Lead SSOP | |
| LTC6803IG-4#TRPBF | 材料声明 | 质量和可靠性 | 44-Lead SSOP | |
| Wafer Fabrication Data | R525 Reliability Data |
PCN-PDN信息
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
样片申请及购买
订购常见问题解答
有关在线订单、付款选项等问题的答案，请参阅我们的订购常见问题解答。
立即购买报价
(**)显示的立即购买报价和报价范围基于少量订单。
报价单
(*)所列的千片报价单仅供预算参考，指美元报价（规定订量的单价，美国离岸价），如有修改，恕不另行通知。由于地区关税、商业税、汇率及手续费原因，国际报价可能不同。对于指定订量报价或交货报价，请联系当地的ADI授权代理商。对于评估板和套件的报价是指单片价格。
交付周期
请参见我们的首席客户官关于交付周期的最新沟通说明。
采样
选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后，所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站，请创建一个新帐户。有关此样片网站的任何问题，请联系SampleSupport@analog.com。
购买评估板
所示报价为单片价格
以上评估板报价仅供人民币结算及大陆购买使用， ADI均提供正规发票，如需美金结算及其他地区购买请直接跳转至英文页面进行购买。