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MB3874PFV データシートの表示(PDF) - Fujitsu

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MB3874PFV Datasheet PDF : 28 Pages
First Prev 11 12 13 14 15 16 17 18 19 20 Next Last
MB3874/MB3876
s APPLICATION EXAMPLE
R10
2
R11
30 k
INE1
6800 pF 8
C8
R8
47 k
FB1
7
3900 pF
INE2
3
C9 +INC1
R16
A 24
22 k
B1
R14
R9 INC1
5.6 k
150 k4
R19
0.1 µF +INE2
200 k
C13
FB2
Q2
SW1
2
3900 pF
33 k
R12
C7
R17
INE3
10
+INC2
C 13
22 k
D 12
R18
200 k
R15
5.6 k
Q3
R7 INC2
150 k9
0.1 µF +INE3
C12
FB3
11
VIN SW2
3
33 k
R13
INE4
16
C6
3900 pF
R4
200 k
INE5
14
C5
3900 pF
R3
200 k
FB4
15
<Error Amp.1> VREF
208 k
VCC
+
42 k
<Current Amp.1>
+ 100 k
× 25
<Error
Amp.2>
VREF
+
<Current Amp.2>
+ 100 k
× 25
<Error
Amp.3>
VREF
+
1
50 k
1
50 k
<SOFT>
VREF
1 µA
<Error
Amp.4>
VREF
+
+
<Error
Amp.5>
VREF
+
+
VREF
(4.2 V)
<MASK Comp.>
+
2.5 V
(2.8 V)
R6
330 k
18
OUTM
VCC
<PWM
Comp.>
++++−
<OUT>
Drive
VCC
21
C14
0.1 µF
OUT
20
C1 C2
22 µF 22 µF
++
−−
C10
0.1 µF
Pin 24 Pin 1
Q1
AB
VCC
L1
Bias voltage
VH
19
block
(VCC 5 V)
27 µH
C3
100 µF
+
<VH>
D1
I1
BATT1
RS1 4
C4 D2 0.075
100 µF
+
Battery 1
<UVLO>
VCC
(VCC UVLO) 215 k
35 k
0.91 V
(0.77 V)
VREF
ULVO
Pin 13 Pin 12
CD
I2
BATT2
RS2 4
0.075
D3
Battery 2
CS
2200 pF
CS
22
2.5 V
1.5 V
<OSC>
(45 pF)
bias
<Ref>
<CTL>
17
5
RT VREF
RT 47 k
23
GND
CTL
6
1 : MB3874 100 k
MB3876 150 k
2 : MB3874 22 k
MB3876 15 k
3 : MB3874 16 V
MB3876 19 V
4 : MB3874 12.6 V
MB3876 16.8 V
20

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