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

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”.

30083454

FIGURE 11. Battery Current Monitor Application

21

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