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參數(shù)資料
| 型號： | TDA7278 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | High-Efficiency CD Actuator Driver(高效率CD驅(qū)動器) |
| 中文描述： | 高效率的CD驅(qū)動器（高效率光盤驅(qū)動器） |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 141K |
| 代理商： | TDA7278 |
OSCILL
VBAT
DRIV
VCPU
VHIGH
+
-
Vbg
STEP
LP
or
STEP DOWN
STRUCTURE
(see fig.3)
OUT1
OUT2
IRC
INP
AUXIL.
STEP UP
VREF (2)
VHIGH
OUT
SYNC
SSCAP
ST CAP
V bg
ER
+
-
S
R
Q
VBAT
-
+
DRIV
VHIGH
DRIV
VHIGH
FL IN 1
H IN 1
H OUT 1A
H OUT 1B
FOCUS
ACTUATOR
DRIV
VHIGH
ER
+
-
S
R
Q
VBAT
-
+
DRIV
VHIGH
DRIV
VHIGH
FL IN 3
H IN 3
H OUT 3A
H OUT 3B
TRACKING
ACTUATOR
DRIV
VHIGH
ER
+
-
S
R
Q
VBAT
-
+
DRIV
VHIGH
DRIV
VHIGH
FL IN 2
H IN 2
H OUT 2A
H OUT 2B
SPINDLE
MOTOR
DRIV
VHIGH
ER
+
-
S
R
Q
VBAT
-
+
DRIV
VHIGH
DRIV
VHIGH
FL IN 4
H IN 4
H OUT 4A
H OUT 4B
SLEDGE
MOTOR
M
M
DRIV
VHIGH
REFERENCE
and
THERMAL
VBG
ENABLE
Vbg
RESET
CONTROL
CRES
WD INP
VCPU
Vbg/2
Vbg/2
-
+
-
+
VBAT
BEMP
BLOW
VCON
GND
E
E
V
E
E
VBAT
D94AU111A
22
470pF
10
μ
F
38
11
10
23
4
30
37
43
35
10
μ
F
47
μ
H
13
14
FEEDBAKC
&
COMPENSATION
NETWORK
(see fig.4)
15
16
17
VBAT
12
2
μ
F
18
24
100nF
19
1
μ
F
20
21
41
40
39
6
28
42
36
34
32
33
31
44
2
1
3
25
27
26
29
9
7
8
5
100
μ
H
10
μ
F
100
μ
H
10
μ
F
100
μ
H
10
μ
F
100
μ
H
10
μ
F
Vbg
Figure 2:
TestCircuit
TDA7278
6/15
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