ISO1540
ISO1541
SLLSEB6 –JULY 2012
www.ti.com
PARAMETER MEASUREMENT INFORMATION
-
+
-
VCC2
+
VCC1
R1
R1
R2
R2
SDA1
SCL1
SDA2
SCL2
ISO1540/1
C1
C1
C2
C2
Figure 1. Test Diagram
VCC1
VCC2
VCC1
GND1
R1
R2
+
SDA1 or
tLOOP1
SDA1
SCL1 [ISO1540 Only]
0.3VCC1
C1
C2
SCL1
Output
-
0.4V
GND1
GND2
Figure 2. tLoop1 Setup and Timing Diagram
VCCx
VCCy
2 kW
2 kW
Input
+
Output
-
GNDx
GNDy
VCMTI
Figure 3. Common-Mode Transient Immunity Test Circuit
6
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