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LSUM 051R3C 0166F EA
User Manual
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Pin 4 is connected with monitoring connector output signals receiver circuit’s ground.
The output signals are isolated from the capacitor voltage and from chassis ground.
The recommended voltage is 5V DC.
When a cell in the module goes into over voltage condition, pin 3 has alarm signal.
When every cell voltage is not over voltage state, the output of Pin 3 is high. If any cell
in the module is exceeding normal voltage, the voltage balancing circuit becomes
active and starts to discharge the cell to become normal voltage range. Then the
output of Pin 3 goes low. At this time, user should stop charging. However, in order to
use the signal, the user needs to attach a pull-up resistor(typically 1kΩ) to pin 3 and a
5V supply.
When the cell voltage is below the threshold, the output of Pin 3 goes high. And if the
cell voltage is drop more, the balancing circuit becomes inactive and the cell stop
discharging.
It is possible that the output of Pin 3 is indicated by LED. The output signal receiver
circuit is as following.
<Fig. 5> Typical output signal receiver circuit to the Output connector
Pin 1-2 are connected with a PTC thermistor for temperature monitoring.According to
temperature variation in the module, the resistance of the thermistor is determined.
The resistance is approximately 470Ω±50% , when the internal temperature in the
module is 25 ℃.
