The LTC6801HG#TRPBF from Analog Devices is a dedicated battery monitor IC for lithium-ion stacks, handling 1 to 12 series cells in a single 36-SSOP package. It integrates fault protection for over-temperature and over/under-voltage conditions, making it a fit for battery management systems in automotive, industrial, and energy-storage applications where the pack voltage and temperature need continuous supervision.
Temperature grade and environment
Rated for -40°C to 125°C ambient, this part covers the full automotive under-hood temperature range and industrial enclosures where internal temperatures climb. The 125°C upper limit means it can sit on a BMS board near the battery pack without thermal derating concerns at typical operating points.
Fault monitoring scope
The over-temperature and over/under-voltage fault flags let the system controller isolate a cell or trigger a contactor before a condition escalates. No separate ADC or comparator chain is needed for these thresholds — the LTC6801 handles them internally, which simplifies the BOM for a 12-cell monitor.
Package and mounting
Surface-mount 36-SSOP (5.30 mm body width) fits standard reflow profiles. The tape-and-reel option (TR) suits volume pick-and-place; cut-tape (CT) is available for prototype or low-volume builds.
Sourcing and lifecycle
Listed as active with no end-of-life notice in the current record. ROHS3 compliant.