LTC6804HG-2#PBF

LTC6804-2 is a 3rd generation multicell battery stack monitor. It measures upto 12 series connected battery cells with a total measurement error of less than 1.2mV. The cell measurement range of 0V to 5V makes this device suitable for most battery chemistries. All 12 cell voltages can be captured in 290µs, and lower data acquisition rates can be selected for high noise reduction. Each device has an isoSPI interface for high speed, RF-immune, local area communications. Using this device, multiple devices are connected in parallel to the host processor, with each device individually addressed. It is widely used in application such as electric and hybrid electric vehicles, backup battery systems, grid energy storage, high power portable equipment etc.

• Stackable architecture supports 100s of cells
• Uses a single twisted pair, upto 100 meters
• Low EMI susceptibility and emissions, 5 general purpose digital I/O or analogue inputs
• Total measurement error is 1.2mV maximum, temperature or other sensor inputs
• 290µs to measure all cells in a system, configurable as an I²C or SPI interface
• Synchronized voltage and current measurement
• Engineered for ISO26262 compliant systems
• Passive cell balancing with programmable timer
• Sleep mode supply current is 4μA maximum
• Operating temperature is -40°C to 125°C, packaging style is 48-lead plastic SSOP

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