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MB3883 Datasheet(Fiches technique) 6 Page - Fujitsu Component Limited.

Numéro de pièce MB3883
Description  6-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down
Télécharger  39 Pages
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Fabricant  FUJITSU [Fujitsu Component Limited.]
Site Internet  http://edevice.fujitsu.com/fmd/en/index.html
Logo 

 6 page
background image
MB3883
6
s
s
s
s BLOCK DIAGRAM
PWM
Comp.
5-2
+
+
+
+
+
+
+
CH5
CH6
Drive
5-1
Drive
5-2
PWM
Comp.
5-1
VB1
Error
Amp.5
1.25 V
1.0 V
1.26 V
62.5 k
37 k
0.9 V
+
+
+
+
+
Drive
6
SW
Drive
PWM
Comp.6
Power
Comp.
0.9V
21
CTL1, 2
22
CTL3
23
CTL4
24
CTL5
1 SWOUT
44 GND (O)
2 SWIN
19 VCC
20
17
GND
16
VREF
18
CSCP
26
CT
25
RT
27
VB
15
CS
CTL
3
FB6
4
5
−IN6
C
+IN6
7
8
6
FB5
−IN5
DTC5
45
46
OUT5-1
OUT5-2
47
48
OUT6
RB6
SCP
Comp.5
Error
Amp.6
37.5 k
(VB : 2 V)
(VB : 2 V)
0.74 V
63 k
CT1
CT2
CT
1.8 V
1.1 V
1.8 V
1.1 V
0.8 V
0.3 V
CS CTL
Logic
2 V
2.49 V
OSC
SCP
Ref
Power
ON/OFF
CTL
UVLO
(48 Pin)
PWM
Comp.
1-2
+
+
+
+
+
+
+
CH1
Drive
1-1
Drive
1-2
+
+
+
+
+
+
+
CH2
Drive
2-1
Drive
2-2
+
+
+
+
+
+
CH3
Drive
3
+
+
+
+
+
+
+
CH4
Drive
4
35
34
36
32
31
33
29
28
30
9
10
11
12
13
14
FB1
−IN1
DTC1
FB2
−IN2
DTC2
FB3
−IN3
DTC3
−IN (A) 4
OUT (A) 4
FB4
−IN4
−IN (S) 4
DTC4
42
37
38
39
40
41
43
VCC (O)
OUT1-1
OUT1-2
OUT2-1
OUT2-2
OUT3
OUT4
PWM
Comp.
1-1
VB1
PWM
Comp.
2-2
PWM
Comp.3
PWM
Comp.4
PWM
Comp.
2-1
VB1
Error
Amp.1
SCP
Comp.1
1.25 V
1.0 V
Error
Amp.2
1.25 V
1.0 V
SCP
Comp.2
Error
Amp.3
1.25 V
1.0 V
SCP
Comp.3
1.25 V
1.0 V
SCP
Comp.4
Error
Amp.4
INV
Amp.4
SCP
Comp.6
H : ON (Power/CH6)
L : OFF (Standby mode)




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Datasheet Download



Numéro de composants électroniques

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