mb3881pff Fujitsu Microelectronics, Inc., mb3881pff Datasheet - Page 32

• Manufacturer Part Number: mb3881pff
• Description: 8-ch Dc/dc Converter Ic With Synchronous Rectifier For Voltage Step-up And Step-down
• Manufacturer: Fujitsu Microelectronics, Inc.

32
MB3881
• Enlarged view of B
(3.6 V)
Vin
Motor control
Motor control
Overvoltage
threshold
voltage
switching signal
setting
signal
signal
luminousity
Back light
R37
15 k
75 k
R43
R25
R27
R29
R30
5.1
k
k
G
E
F
15
24 k
24 k
R26
20 k
R28
20 k
0.1 F
0.1 F
0.1 F
R38
47 k
C25
C26
C27
R13
1 k
IN5(C)
R14
1 k
IN6(C)
R15
1 k
DTC5
DTC6
R44
47 k
FB5
FB6
FB7
DTC7
IN7
IN5
IN6
OVP
IN5
IN6
IN7
20
21
23
22
19
14
15
17
16
18
13
10
11
12
9
CH7
CH5
CH6
59
60
63
61
62
OUT5
OUT6
OUT7
VCC(O)-2
470 pF
VSS(O)-2
680 pF
2200 pF
R5
3 k
R6
1 k
R7
100
C17
C18
C19
1 F
1 F
1 F
C37
C38
C39
Q5
Q6
Q7
15 H
L10
C11
2.2 F
D5
D6
D7
E
G
F
2.2 F
2.2 F
2.2 F
33 H
33 H
15 H
L8
L9
L11
C5
C6
C7
(DRUM)
(CAP)
(B.L)
Vo5
Vo6
Vo7