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CONSONANCE
Low Power Window Detector
CN305
General Description
The CN305 is a single adjustable window detector
with separate under/overvoltage outputs. It
consists of 2 comparators and a voltage reference,
and is specially designed for monitoring single or
multi lithium-ion (Li+) cells, multi-cell alkaline,
NiCd, NiMH and multi-cell lead acid batteries.
The comparators’ threshold accuracy is ±2%, and
offers 7.5% hysteresis which eliminates the output
chatter sometimes associated with battery voltage
monitors, usually due to input voltage noise or
battery terminal voltage recovery after load
removal. The CN305 has 2 inputs that can be
configured by the external resistor divider. When
the voltage at OVIN rises above the rising
overvoltage threshold,
goes low.