Data Sheet

©2004 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD2741A, FOD2741B, FOD2741C Rev. 1.0.1 6
FOD2741A, FOD2741B, FOD2741C — Optically Isolated Error Amplifier
Test Circuits
I
(LED)
V
(LED)
V
COMP
V
COMP
I
CEO
V
CE
V
REF
V
CE
I
(LED)
V
F
V
REF
V
REF
82
3
2
3
V
V
V
6
7
5
I
(LED)
I
(LED)
I
C
I
(OFF)
I
REF
8
6
2
3
2
3
2
3
V
V
7
5
8
6
7
5
8
6
7
5
8
6
2
3
7
5
R1
8
6R1
R2
7
5
Figure 1. V
REF
, V
F,
I
LED
(min.) Test Circuit
Figure 3. I
REF
Test Circuit
Figure 5. I
CEO
Test Circuit Figure 6. CTR, V
CE(sat)
Test Circuit
Figure 4. I
(OFF)
Test Circuit
Figure 2. ∆V
REF /
∆V
COMP
Test Circuit