Datasheet for LTC6812-1:
- Manufacturer Part Number : LTC6812-1
- Manufacturer : AD
- Description : 15-Cell Battery Stack Monitor with Daisy Chain Interface
- Series : LTC6812-1
- Reference Price : USD 0
- 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 : LTC6812-1
- 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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- Measures Up to 15 Battery Cells in Series
- 2.2mV Maximum Total Measurement Error
- Stackable Architecture for High Voltage Systems
- Built-In isoSPI™ Interface
- 1Mb Isolated Serial Communications
- Uses a Single Twisted Pair, Up to 100 Meters
- Low EMI Susceptibility and Emissions
- Bidirectional for Broken Wire Protection
- 245μs to Measure All Cells in a System
- Synchronized Voltage and Current Measurement
- 16-Bit Delta-Sigma ADC with Programmable 3rd Order Noise Filter
- Engineered for ISO 26262-Compliant Systems
- Passive Cell Balancing Up to 200mA (Max) with Programmable Pulse-Width Modulation
- 9 General Purpose Digital I/O or Analog Inputs
- Temperature or Other Sensor Inputs
- Configurable as an I2C or SPI Master
- 6μA Sleep Mode Supply Current
- 64-Lead eLQFP Package
- AEC-Q100 Qualified for Automotive Applications
The LTC6812-1 is a multicell battery stack monitor that measures up to 15 series connected battery cells with a total measurement error of less than 2.2mV. The cell measurement range of 0V to 5V makes the LTC6812-1 suitable for most battery chemistries. All 15 cells can be measured in 245μs, and lower data acquisition rates can be selected for high noise reduction.
Multiple LTC6812-1 devices can be connected in series, permitting simultaneous cell monitoring of long, high voltage battery strings. Each LTC6812-1 has an isoSPI interface for high speed, RF immune, long distance communications. Multiple devices are connected in a daisy chain with one host processor connection for all devices. This daisy chain can be operated bidirectionally, ensuring communication integrity, even in the event of a fault along the communication path.
The LTC6812-1 can be powered directly from the battery stack or from an isolated supply. The LTC6812-1 includes passive balancing for each cell, with individual PWM duty cycle control for each cell. Other features include an onboard 5V regulator, nine general purpose I/O lines and a sleep mode, where current consumption is reduced to 6μA.
Applications
- Electric and Hybrid Electric Vehicles
- Backup Battery Systems
- Grid Energy Storage
- High Power Portable Equipment
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.
