Datasheet for LTC6802-1:
- Manufacturer Part Number : LTC6802-1
- Manufacturer : AD
- Description : 12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 1
- Series : LTC6802-1
- Reference Price : USD 8.16
- Our Price : We have a better price, contact us by email
- Product Type : Battery Management
- Function : Multicell Battery Stack Monitor
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC6802-1
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- Qualified for Automotive Applications
- Measures Up to 12 Li-Ion Cells in Series (60V Max)
- Stackable Architecture Enables >1000V Systems
- 0.25% Maximum Total Measurement Error
- 13ms to Measure All Cells in a System
- Cell Balancing:
- On-Chip Passive Cell Balancing Switches
- Provision for Off-Chip Passive Balancing
- Two Thermistor Inputs Plus On-Board Temperature Sensor
- 1MHz Daisy-Chainable Serial Interface
- High EMI Immunity
- Delta Sigma Converter with Built-In Noise Filter
- Open Wire Connection Fault Detection
- Low Power Modes
- 44-Lead SSOP Package
The LTC6802-1 is a complete battery monitoring IC that includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface. Each LTC6802-1 can measure up to 12 series connected battery cells with an input common mode voltage up to 60V. In addition, multiple LTC6802-1 devices can be placed in series to monitor the voltage of each cell in a long battery string. The unique level-shifting serial interface allows the serial ports of these devices to be daisy-chained without optocouplers or isolators.
When multiple LTC6802-1 devices are connected in series they can operate simultaneously, permitting all cell voltages in the stack to be measured within 13ms.
To minimize power, the LTC6802-1 offers a measure mode, which simply monitors each cell for overvoltage and undervoltage conditions. A standby mode is also provided.
Each cell input has an associated MOSFET switch for discharging overcharged cells.
For large battery stack applications requiring individually addressable serial communications, see the LTC6802-2.
| SPI Interface | Features | |
| LTC6802-1 | Daisy Chain | Multiple devices can be connected in serial fashion without digital isolation |
| LTC6802-2 | Addressable | Parallel addressed SPI interface - each device in a chain communicates with a control processor in parallel via external digital isolators |
Applications
- Electric and Hybrid Electric Vehicles
- High Power Portable Equipment
- Backup Battery Systems
- High Voltage Data Acquisition Systems
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
