MB39A115 Datasheet, PDF (32/42 Pages) Fujitsu Component Limited. – 5 ch DC/DC Converter IC with Synchronous Rectification

MB39A115
■ APPLICATION EXAMPLE
R14 R15
510 Ω 4.3 kΩ −INE1
A
37
R16
24 kΩ
CS1
38
C18
1.5 µF
R17
1 kΩ
FB1 ₃₆
C19
0.1 µF
VIN
(5.5 V to 8.5 V)
R18 R19
510 Ω 15 kΩ ^−INE2
B
2
R20
15 kΩ
CS2
1
C20
1.5 µF
R21
1 kΩ
C21 ^FB2 3
0.1 µFDTC2 ₄
R24 R25
3.3 kΩ 22 kΩ
C
R26
15 kΩ
−INE3
18
CS3
19
C22
0.15 µF
R27
1 kΩ
FB3
C23
17
0.1 µF DTC3
16
R30 R31
3 kΩ 43 kΩ −INE4
D
21
R32
15 kΩ
CS4
20
C24
0.15 µF
R33
1 kΩ
FB4
C25
22
0.1
µF
DTC4
23
R36 R37
12 kΩ 100 kΩ −INE5
E
26
R38
10 kΩ
CS5
27
C26
R39
0.15 µF 1 kΩ
R40
FB5
C27
25
33 kΩ 0.1 µF DTC5
24
R41
20 kΩ
Short-circuit
−INS
detection signal
10
(L : at short-circuit)
Charge
current
1 µA
CSCP
15
C28
2200 pF
CTL3 ₇
CTL4 ₈
CTL5 ₉
H : ON
L : OFF
VTH = 1.0
<<ch.1>>
<<ch.2>>
<<ch.3>>
<<ch.4>>
<<ch.5>>
Step down
(synchronous
rectification)
35 ^VCCO
Q1
C17 0.1µF
C1
34 ^OUT1-1
1 µF
Q2
A
L1
4.7 µH
D1
Vo1
1.2 V/600 mA
C2
2.2 µF
33 ^OUT1-2
32 ^OUT2
31 ^OUT3
Step down
Q3
C3
1 µF
B
L2
10 µH
D2
Vo2
2.5 V/400 mA
C4
2.2 µF
Step down
Q4
C5
1 µF
C
L3
22 µH
D3
Vo3
3.3 V/200 mA
C6
2.2 µF
30 ^OUT4
Step down
Q5
C7
1 µF
D
L4
47 µH
D4
DVo4
5.0 V/100 mA
C8
2.2 µF
29 ^OUT5
28 ^GNDO
Transformer E
D7
T2
TVo5-1
15 V/40 mA
C12
1 µF
TVo5-3
Q7
D9 _C13
−15 V/−10 mA
C15
2.2 2.2
µF
µF
12
RT
R42
6.2 kΩ
13
CT Accuracy
C29
±5%
100 pF _{(2.0 MHz)}
11
VREF
C30
0.1
Accuracy
µF
± 1%
14
GND
5 ^VCC
6 ^CTL
C16
0.1 µF
H : ON (Power ON)
L : OFF (Standby state)
VTH = 1.0 V
32