ATA6870N_14 Datasheet, PDF (1/50 Pages) ATMEL Corporation – Li-Ion, NiMH Battery Measuring, Charge Balancing and Power-supply Circuit

ATA6870N
Li-Ion, NiMH Battery Measuring, Charge Balancing and
Power-supply Circuit
Features
DATASHEET
● 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
● Cost-efficient solution due to cost-optimized 30V CMOS technology
● 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
● Package QFN48 7mm ×7mm
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
Benefits
● Cost reduction due to integrated measurement circuit and high voltage
power-supply
9317B-AUTO-06/14