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IC BLOCK DIAGRAM & DESCRIPTION
DVD U3 AT5654H
VINFC
1
CFCerr1
2
CFCerr2
3
V
SL+
4
IN
5
V
SL-
IN
6
VOSL
VNFFC
7
Vcc
8
9
PV
CC1
PGND
10
VOSL-
11
VOSL+
12
VOFC-
13
VOFC+
14
28
1
Pin
Name
1.
VINFC
2.
CFCerr1
3.
CFCerr2
4.
VINSL +
5.
VINSL -
6.
VOSL
7.
VNFFC
+
20K
10K
7.5K
7.5K
+
X2
DET AMP.
10K
Vcc
PV
CC1
25K
PGND
SLED
DRIVER
ACTUATOR
DRIVER
25
27
26
24
23
2
3
4
5
6
Pin
Name
8.
V
CC
9.
PV cc1
10.
PGND
11.
VOSL -
12.
VOSL +
13.
COFC -
14.
VOFC +
THERMAL
SHUT DOWN
+
7.5K
DET AMP.
Vcc
PV cc2 PV cc1
22
21
AT5654
8
7
Pin
15.
VOTK +
16.
VOTK -
17.
VOLD +
18.
VOLD -
19.
PGND
20.
VNFTK
21.
PV
CC2
-27-
STAND
-BY
OET1
OET2
10K
20K
7.5K
Pre GND
10K
X2
PV
CC2
15K
PGND
LOADING
DRIVER
ACTUATOR
DRIVER
20
19
18
17
16
11
9
10
12
13
Name
Pin
22.
23.
24.
25.
26.
27.
28.
28
STBY
BIAS
27
V TK
IN
26
CTKerr1
25
CTKerr2
24
23
V LD
IN
GND
22
21
PV
CC2
20
VNFTK
19
PGND
18
VOLD-
17
VOLD+
VOTK-
16
15
VOTK+
15
14
Name
GND
VINTK
CTKerr2
CTKerr1
VINTK
BIAS
MUTE
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