M62255FP
Charge current of current detect R is multiplied by 10 and outputted from DOUT.
M62255 is for the floating detection type. Current detect R is connected to + terminal of battery. So M62255 is best fit
for SM-bus system, because the common GND can be given between PC system and the charger circuit.
Discharge current is detected by the same method as charge current. Detecting discharge current can be used for
monitoring the current consumption and the remnant of the battery.
To 10 times
amplifier
Current
detect
circuit
ISENSE+
ISENSE−
Charge current
Detect R
To 4 times
amplifier
Multiplexer
circuit
IN1 to IN4
Figure 3 Detector Circuit of Battery Voltage/Charge Current
REJ03F0245-0200 Rev.2.00 Sep 14, 2007
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