MB3825A Fujitsu Microelectronics, Inc., MB3825A Datasheet - Page 29

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

APPLICATION EXAMPLE
• General view
V
(6 V)
IN
13.5 k
23.5 k
42.5 k
13.5 k
9.3 k
3.5 k
2.5 k
7.5 k
15 k
12 k
15 k
30 k
15 k
30 k
15 k
Over voltage
5 k
threshold
A
B
C
D
E
F
voltage
setting
120 k
30 k
0.033 F
0.033 F
0.033 F
0.033 F
0.033 F
0.033 F
H ON(CH3)
L OFF
0.1 F
0.1 F
OVP5, 6
IN(C)2
IN(C)3
IN(C)4
IN(C)5
IN(C)6
IN(E)6
V
IN(E)5
CSCP
IN(E)1
IN(C)1
IN(E)2
IN(E)3
DTC3
IN(E)4
IN(E)5
IN(E)6
CTL2
FB1
FB1
SCP
FB2
FB3
FB4
FB5
FB6
CS
35
32
34
20
18
17
16
12
10
13
38
39
40
36
37
33
29
31
19
14
15
11
26
23
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.1
SCP
Comp.1
Error
Amp.2
Error
Amp.3
SCP
Comp.3
Error
Amp.4
SCP
Comp.4
Error
Amp.5
SCP
Comp.5
Error
Amp.6
SCP
Comp.6
SCP
Comp.
SCP
Amp.2
UVLO
70 mV
70 mV
PWM
Comp.4-2
PWM
Comp.1-2
39 k
PWM
Comp.4-1
PWM
Comp.6
PWM
Comp.2
PWM
Comp.3
PWM
Comp.5
PWM
Comp.1-1
RT
21
OSC
CT
22
100 pF
1.5 V
V
Comp.
Ref
CC
27
VREF
<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
2
3
5
6
ON/OFF
Power
24
V
GND1
CT
25
0.65 V
GND2
42
44
45
46
41
43
51
48
49
50
47
54
55
56
52
53
63
59
58
57
62
60
64
61
28
30
1
5
4
2
3
6
7
VCC(O)1, 3
VCC(O)2
GND(O)1, 2, 3
VCC
VB1
CB2-2
CB1-2
OUT1-2
VB2
CB1-3
CB2-3
OUT1-3
VB3
CB1-4
CB2-4
OUT1-4
VB4
OUT2-4
CB1-5
CB2-5
OUT1-5
VB5
CB1-6
CB2-6
OUT1-6
VB6
GND(O)4, 5, 6
CB1-1
CB2-1
OUT1-1
OUT2-1
VCC(O)4, 5, 6
CTL1
560 pF
560 pF
560 pF
560 pF
560 pF
560 pF
22 k
22 k
22 k
22 k
22 k
22 k
H : ON (CH1, 2, 4 to 6)
L : OFF (standby state)
V
OUT
10 H
10 H
1-1
FMMT717 : ZETEX plc.
2SB1121 : SANYO Electric Co., Ltd.
2SK2316 : SANYO Electric Co., Ltd.
1SS196 : TOSHIBA CORPORATION
U1FWJ44N : TOSHIBA CORPORATION
10 H
10 H
4.7 F
4.7 F
4.7 F
2SK2316
2SK2316
4.7 F
FMMT717
FMMT717
2SB1121
FMMT717
FMMT717
V
OUT
FMMT717
2-1
V
C
1
U1FWJ44N
U1FWJ44N
U1FWJ44N
U1FWJ44N
U1FWJ44N
1SS196
68 H
33 H
47 H
6.8 F
6.8 F
33 H
A
B
C
2.2 F
D
6.8 F
E
2.2 F
F
47 H
2.2 F
750
100
100
V
V
V
V
V
V
30
50
50
O
O
O
O
O
O
1(3.2 V)
2(5.05 V)
3(15 V)
4(4.89 V)
5(4.5 V)
6(4.5 V)
V
O
1
MB3825A
A
B
C
29