Datasheet

Æ
1
Æ
2
Æ
2
Æ
1
Æ
2
Æ
2
Æ
1
Æ
1
Æ
1
Æ
1
V
IN+
V
IN-
Æ
1
Æ
2
Æ
2
Æ
1
Æ
2
Æ
2
V
IN+
V
IN-
V
REF
Output
+2.7V to
+18V
+2.7V to
+18V
Q
1
Q
2
D1
D2
Motor
Supply
(< 80V)
MOSFET
Drive
Circuits
INA282, INA283
INA284, INA285
INA286
www.ti.com SBOS485B –NOVEMBER 2009–REVISED SEPTEMBER 2012
NOTE: By sensing totem-pole current on both the positive and negative rail and summing, dynamic common-mode issues
can be avoided entirely. Note that IC
2
is connected with inverting inputs because it should report current with an
opposite polarity to that of IC
1
.
Figure 43. Sensing and Summing Totem Pole Current
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Product Folder Links: INA282 INA283 INA284 INA285 INA286