LTC6804IG-1#TRPBF

LTC6804IG-1#TRPBF is a 3rd-generation multicell battery stack monitor that measures up to 12 series-connected battery cells with a total measurement error of less than 1.2mV. The cell measurement range of 0V to 5V makes the LTC6804 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. It has an isoSPI interface for high-speed, RF-immune, local area communications. Using the LTC6804-1, multiple devices are connected in a daisy chain with one host processor connection for all devices. Additional features include passive balancing for each cell, an onboard 5V regulator, and 5 general-purpose I/O lines. The LTC6804 can be powered directly from the battery or from an isolated supply. Applications include electric and hybrid electric vehicles, backup battery systems, grid energy storage, high power portable equipment.

• Stackable architecture supports 100s of cells
• Built-in isoSPI™ interface:1Mbps isolated serial communications
• Uses a single twisted pair, up to 100meters, low EMI susceptibility and emissions
• Synchronized voltage and current measurement
• 16-bit delta-sigma ADC with frequency programmable 3rd order noise filter
• Engineered for ISO26262 compliant systems, passive cell balancing with programmable timer
• 5 general purpose digital I/O or analogue inputs
• Measurement resolution is 0.1mV/bit at TA=25°C, V+=39.6V, VREG=5.0V
• 48-lead plastic SSOP package
• Specified temperature range from -40°C to 85°C