MB3825A Fujitsu Microelectronics, Inc., MB3825A Datasheet - Page 6

• Manufacturer Part Number: MB3825A
• Description: 6-ch DC/DC Converter ic With Synchronous Rectifier
• Manufacturer: Fujitsu Microelectronics, Inc.

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