13

Figure 21. Optocoupler Input to Output Capacitance Model

for Unshielded Optocouplers.

Figure 22. Optocoupler Input to Output Capacitance Model

for Shielded Optocouplers.

Figure 23. Equivalent Circuit for Figure 17 During Common Mode Transient.

Figure 24. Not Recommended Open Collector Drive Circuit.

Figure 25. Recommended LED Drive Circuit for Ultra-High CMR IPM

Dead Time and Propagation Delay Specifications.

1

3

2

4

8

6

7

5

1

3

2

4

8

6

7

5

SHIELD

Rg

1

3

VSAT

2

4

8

6

7

5

+

VCM

SHIELD

* THE ARROWS INDICATE THE DIRECTION

+5 V

+

–

VCC = 18 V

• • •

• • •

0.1

µF

+

–

–

1

3

2

4

8

6

7

5

SHIELD

+5 V

Q1

1

3

2

4

8

6

7

5

SHIELD

+5 V