LMP8602MA NSC [National Semiconductor], LMP8602MA Datasheet - Page 21

• Manufacturer Part Number: LMP8602MA
• Description: 60V Common Mode, Fixed Gain, Bidirectional Precision Current Sensing Amplifier
• Manufacturer: NSC [National Semiconductor]

BATTERY CURRENT MONITOR APPLICATION
This application example shows how the LMP8602/
LMP8603 can be used to monitor the current flowing in and
out a battery pack. The fact that the LMP8602/LMP8603 can
measure small voltages at a high offset voltage outside the
parts own supply range makes this part a very good choice
FIGURE 11. Battery Current Monitor Application
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for such applications. If the load current of the battery is higher
then the charging current, the output voltage of the
LMP8602/LMP8603 will be above the “half offset voltage” for
a net current flowing out of the battery. When the charging
current is higher then the load current the output will be below
this “half offset voltage”.
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