DESCRIPTION

· The 9317B-AUTO-06/14 is a battery measurement, supply, and monitoring IC designed for Li-ion and NiMH battery systems in Electric (EV) and Hybrid Electrical (HEV) Vehicles. It features a cost-efficient solution using 30V CMOS technology and supports reliable communication between stacked ICs with level shifters and checksum monitoring. The IC is daisy-chainable, with each IC monitoring up to 6 battery cells, and supports up to 16 ICs (96 cells) per string with no limit on the number of strings. It comes in a QFN48 7mm × 7mm package.

FEATURES

· 12-bit battery-cell voltage measurement
· Simultaneous battery cells measurement in parallel
· Cell temperature measurement
· Charge Balancing Capability
· Parallel balancing of cells possible
· Integrated power supply for MCU
· Undervoltage detection
· Less than 10µA standby current
· Low cell imbalance current (< 10µA)
· Hot plug-in capable
· Interrupt timer for cycling MCU wake-ups
· Reliable communication between stacked ICs due to level shifters with current sources and checksum monitoring of data
· Daisy-chainable
· Each IC monitors up to 6 battery cells
· 16 ICs (96 cells) per string
· No limit on number of strings

APPLICATIONS

· Battery measurement, supply, and monitoring IC for Li-ion and NiMH battery systems in Electric (EV) and Hybrid Electrical (HEV) Vehicles
· Electrical and hybrid electrical vehicles
· Li-Ion batteries as 12V lead-acid battery replacement
· Ebike, scooters
· Uninterruptible power supply (UPS)
· Smart grid