isl28005 Intersil Corporation, isl28005 Datasheet - Page 10

• Manufacturer Part Number: isl28005
• Description: Micropower, Rail-to-rail Input Current Sense Amplifier With Voltage Output
• Manufacturer: Intersil Corporation

I
I
LOAD
LOAD
S
S
+
-
+
-
R
R
S
S
OPTIONAL
FILTER
CAPACITOR
OPTIONAL
TRANSIENT
PROTECTION
OPTIONAL
FILTER
CAPACITOR
OPTIONAL
TRANSIENT
PROTECTION
10
V
V
SENSE
SENSE
FIGURE 17. LOW-SIDE CURRENT DETECTION
FIGURE 16. HIGH-SIDE CURRENT DETECTION
R
R
R
R
S+
S-
S+
S-
I = 2.86µA
I = 2.86µA
V
V
1.35V
1.35V
R
R
R
R
R
R
R
R
SENSE
SENSE
1
2
3
1
2
3
4
4
ISL28005
gm
gm
gm
gm
I
I
MIRROR
MIRROR
LO
HI
HI
LO
V
CC
‘V
SENSE
HIGH-SIDE
SENSING
V
LOW-SIDE
SENSING
V
‘V
RS+
RS+
SENSE
= 2V TO 28V
= 0V TO 2V
R
R
5
5
+
-
+
-
GND
GND
V
V
CC
CC
R
R
R
R
f
g
f
g
OUT
OUT
V
V
CC
CC
= 2V TO 28V
= 2V TO 28V
February 3, 2010
FN6973.1