D97IN507

+

-

EA

+

1.3mA

R

2R

12

6

5

2.5V

+

-

EA

+

1.3mA

R

2R

12

6

5

2.5V

Error Amp compensation circuit for stabilizing any current-mode topology except

for boost and flyback converters operating with continuous inductor current.

Error Amp compensation circuit for stabilizing current-mode boost and flyback

topologies operating with continuous inductor current.

VFB

VFB

COMP

COMP

SGND

SGND

Figure 39. Typical E/A compensation networks.

L5991

COMP

D97IN759

TL431

VFB

6

5

Figure 40. Feedback with optocoupler.

L5991

OPTIONAL

D97IN760A

I

SGND

RCT

ISEN

L5991

OPTIONAL

I

SGND

RCT

ISEN

L5991

OPTIONAL

OUT

SGND

R

ISEN

4

2

13

12

4

2

13

12

13

12

10

16

ST-BY

16

ST-BY

Figure 41. Slope compensation techniques.

L5991 - L5991A

18/23