Datasheet

ISO124
8
SBOS074C
www.ti.com
FIGURE 5. Battery Monitor for a 600V Battery Power System. (Derives input power from the battery.)
FIGURE 4. Optional π Filter to Minimize Power-Supply Feedthrough Noise; Output Filter to Remove 500kHz Carrier Ripple. For
more information concerning output filters refer to Application Notes SBOA012 and SBFA001.
V
IN
V
OUT
= V
IN
Isolation Barrier
ISO124
+V
S2
+V
S1
–V
S1
±V
S1
–V
S2
Gnd2
Gnd1
R
1
4.75kΩ
R
2
9.76kΩ
1µF1µF
1µF1µF
10µH
10µH
±V
S2
10µH
10µH
1µF1µF1µF1µF
C
1
220pF
C
2
1000pF
OPA237
15
1
9
10
7
2
e
50
= 12V
8
–V
16
+V
15
1
9
10
7
2
10kΩ
8
–V
16
+V
10kΩ
e
49
= 12V
e
2
= 12V
e
1
= 12V
10kΩ
10kΩ
Charge/Discharge Control
INA105
25kΩ
25kΩ
25kΩ
25kΩ
2
3
1
e
50
V =
2
+V –V
74
5
6
e
1
V =
2
Multiplexer
Control
Section
ISO124
This Section Repeated 49 Times.
ISO124