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Número de pieza
componentes Descripción
MB3825A Ver la hoja de datos (PDF) - Fujitsu
Número de pieza
componentes Descripción
Fabricante
MB3825A
6-ch DC/DC Converter IC With Synchronous Rectifier
Fujitsu
MB3825A Datasheet PDF : 39 Pages
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MB3825A
s
BLOCK DIAGRAM
•
General view
6
FB1
38
39
−
IN(E)1
40
IN(C)1
Error
Amp.1
−
+
+
1.5 V
SCP
Comp.1
−
+
1.5 V
PWM
Comp.1-1
+
−
70 mV
+
−
PWM
Comp.1-2
FB2
35
36
−
IN(E)2
37
IN(C)2
Error
Amp.2
−
+
+
1.5 V
SCP
−
Comp.2
+
1.5 V
PWM
Comp.2
+
−
FB3
32
33
−
IN(E)3
CTL2
29
34
IN(C)3
DTC3
31
Error
Amp.3
−
+
1.5 V
−
+
SCP
Comp.3
1.5 V
PWM
Comp.3
+
+
−
FB4
20
19
−
IN(E)4
18
IN(C)4
Error
Amp.4
−
+
+
1.5 V
SCP
Comp.4
−
+
1.5 V
PWM
Comp.4-1
+
−
70 mV
+
−
PWM
Comp.4-2
FB5
17
16
−
IN(E)5
Error
Amp.5
−
+
+
IN(C)5
14
15
+
IN(E)5
0.6 V
SCP
Comp.5
−
+
PWM
Comp.5
+
−
<CH1>
Drive
1-1
Drive
1-2
<CH2>
Drive
2
<CH3>
Drive
3
<CH4>
Drive
4-1
Drive
4-2
<CH5>
Drive
5
VCC(O)1, 3
42
CB1-1
44
45
CB2-1
46
OUT1-1
41
VB1
43
OUT2-1
A
VCC(O)2
51
CB1-2
48
49
CB2-2
50
OUT1-2
47
VB2
CB1-3
54
55
CB2-3
56
OUT1-3
52
VB3
GND(O)1, 2, 3
53
B
VCC(O)4, 5, 6
63
CB1-4
59
58
CB2-4
57
OUT1-4
62
VB4
60
OUT2-4
CB1-5
2
1
CB2-5
64
OUT1-5
3
VB5
FB6
12
11
−
IN(E)6
Error
Amp.6
−
+
+
IN(C)6
9
10
+
IN(E)6
OVP5, 6
8
13
SCP
CS
26
0.6 V
−
SCP
Comp.6
+
SCP
−
Comp.
+
1.5 V
1
µ
A
Buff
<CH6>
PWM
Comp.6
CB1-6
6
5
+
−
Drive
6
CB2-6
4
C
OUT1-6
7
VB6
V
CC
Comp.
GND(O)4, 5, 6
61
0.65 V
Soft Start
Comp.
1
µ
A
CSCP
23
1.5 V
SCP
UVLO
−
1.35 V
−
0.65 V
−
1.35 V
−
0.65 V
OSC
Ref
Power
ON/OFF
1.5 V
21 22
27 24 25
RT CT VREF
GND1 GND2
VCC
28
CTL1
30
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