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MAX11080,pdf datasheet(Battery-Pack Fault Monitor)

消耗积分:5 | 格式:rar | 大小:322 | 2009-07-25

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The MAX11080 is a battery-pack fault-monitor IC capable
of monitoring up to 12 lithium-ion (Li+) battery
cells. This device is designed to provide an overvoltage
or undervoltage fault indication when any of the
cells cross the user-selectable threshold for longer
than the set program-delay interval. The overvoltage
levels are pin selectable from +3.3V to +4.8V in 100mV
increments, and have a guaranteed accuracy of
±25mV over the entire temperature range. The undervoltage
level is also user selectable from +1.6V to
+2.8V in 200mV increments. These levels are guaranteed
to ±100mV over the entire temperature range.
Undervoltage detection can be disabled as one of the
user-configuration options.
The MAX11080 has a built-in level-shifter that allows up
to 31 MAX11080 devices to be connected in a daisychain
fashion to reduce the number of interface signals
needed for large stacks of series batteries. Each cell is
monitored differentially and compared to the overvoltage
and undervoltage thresholds. When any of the cells
exceed this threshold for longer than the set program
delay interval, the MAX11080 inhibits the heartbeat signal
from being passed down the daisy chain. Built-in
comparator hysteresis prevents threshold chattering.
The MAX11080 is designed to be the perfect complement
to the MAX11068 high-voltage measurement IC
for redundant fault-monitoring applications. This device
is offered in a 9.7mm x 4.4mm, 38-pin TSSOP package
with 0.5mm pin spacing. The package is lead-free and
RoHS compliant with an extended operating temperature
range of -40°C to +105°C.
Applications
High-Voltage, Multicell-Series-Stacked Battery
Systems
Electric Vehicles
Hybrid Electric Vehicles
Electric Bikes
High-Power Battery Backup
Solar Cell Battery Backup
Super-Cap Battery Backup

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