參數(shù)資料
型號(hào)： AN8814SB
廠商： PANASONIC CORP
元件分類： 光電元器件
英文描述： 4-channel driver IC for optical disk drive
中文描述： CD MOTOR DRIVER, PDSO30
封裝： 0.400 INCH, PLASTIC, HSOP-42/28
文件頁(yè)數(shù)： 5/5頁(yè)
文件大?。?/td> 51K
代理商： AN8814SB
ICs for Compact Disc/CD-ROM Player
AN8814SB
5
I
Application Circuit Example
1
2
R
V
REF
RL1
2
2
3
2
4
2
5
2
6
2
7
SV
CC
2
F
F
8
2
9
2
1
1
1
1
1
1
1
1
1
1
V
4
R
V
3
R
V
2
R
V
1
RL2
RL4
RL3
PV
CC1
PV
CC2
When the AN8814SB is use, take into account the following cautions and follow the power dissipation characteristic curve.
1. Load current I
P1
flowing into load RL1, RL2 is supplied through pin 20.
I
P1
=|
V
18
V
17
|
+
R
L1
R
L2
2. Load current I
P2
flowing into load RL3, RL4 is supplied through pin 9.
I
P2
=|
V
14
V
13
|
+
R
L3
R
L4
3. Dissipation increase (
P
D
) inside the IC (power output stage) caused by loads RL1, RL2, RL3 and RL4 is as follows:
P
D
=
(PV
CC1
|
V
18
V
17
|
)
×|
V
18
V
17
|+
(
PV
CC1
|
V
16
V
15
|
)
+|
V
16
V
15
|
R
L1
=
(PV
CC2
|
V
14
V
13
|
)
×|
V
14
V
13
|+
(
PV
CC2
|
V
12
V
11
|
)
×|
V
12
V
11
|
R
L3
4. Dissipation increase (
P
S
) inside the IC (signal block supplied from pin 7) caused by loads RL1, RL2, RL3 and RL4
comes roughly as follows:
P
S
=
3
× {
V
1
×
(2
×
SV
CC
+
|
V
18
V
17
|
) +V
2
×
(2
×
SV
CC
+
|
V
16
V
15
|
)
R
1
R
2
+
V
3
×
(2
×
SV
CC
+
|
V
14
V
13
|
) +V
4
×
(2
×
SV
CC
+
|
V
12
V
11
|
)}
R
3
R
4
|
V
16
V
15
|
|
V
12
V
11
|
R
L2
R
L4
5. Dissipation increase in a driver operating mode is
P
D
+
P
S
.
6. Allowable power dissipation without load (P
D1
) can be found as follows:
P
D1
=
SV
CC
×
I
SVCC
+
PV
CC1
×
I
PVCC1
+
PV
CC2
×
I
PVCC2
7. Allowable power dissipation in a load operating mode (P
D
) comes roughly as follows:
P
D
=
P
D1
+
P
D
+
P
S
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