Datasheet

C1
R
SENSE
POWER
SWITCH
INDUCTIVE
LOAD
24V
-+
+IN
-IN
+
-
Preamplifier
Output Buffer
Gain = K2
A1
A2
Gain = 10
OFFSET
Internal
Resistor
100 k:
OUT
Level
shift
1
5
3
4
7
8
C1
R
SENSE
POWER
SWITCH
INDUCTIVE
LOAD
24V
-+
+IN
-IN
+
-
Preamplifier
Output Buffer
Gain = K2
A1
A2
Gain = 10
OFFSET
Internal
Resistor
100 k:
OUT
Level
shift
1
5
3 4
7
8
LMP8602, LMP8602Q, LMP8603, LMP8603Q
SNOSB36D –JULY 2009–REVISED MARCH 2013 www.ti.com
Figure 51. Low Side Current Sensing Application with Large Common Mode Transients
HIGH SIDE CURRENT SENSING APPLICATION WITH NEGATIVE COMMON MODE TRANSIENTS
Figure 52 illustrates the application of the LMP8602/LMP8603 in a high side sensing application. This application
is similar to the low side sensing discussed above, except in this application the common mode voltage on the
shunt drops below ground when the driver is switched off. Because the common mode voltage range of the
LMP8602/LMP8603 extends below the negative rail, the LMP8602/LMP8603 is also very well suited for this
application.
Figure 52. High Side Current Sensing Application with Negative Common Mode Transients
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