MB3875 Fujitsu Media Devices, MB3875 Datasheet - Page 19
MB3875
Manufacturer Part Number
MB3875
Description
DC/DC Converter IC for Charging
Manufacturer
Fujitsu Media Devices
Datasheet
1.MB3875.pdf
(27 pages)
- Current page: 19 of 27
- Download datasheet (294Kb)
200 k
VIN
APPLICATION EXAMPLE
R16
Q2
3
330 k
68 k
1.3 k
R14
R4
R5
R6
22 k
2
SW1
R12
3900 pF
110
R15
150 k
R10
22 k
3900 pF
2200 pF
200 k
R11
30 k
R7
C8
C10 3900 pF
R8
30 k
R13
C6
R3
C
A
B
S
OUTC1
150 k
R9
OUTC2
100 k
INE1
INC1
INC1
INE1
INE2
INC2
INC2
INE2
INE3
FB1
FB2
FB3
IN3
CS
11
10
15
13
12
24
16
22
8
9
6
4
1
7
3
2
<Current Amp.1>
<Current Amp.2>
<SOFT>
VREF
1 A
50 k
1
25
25
2.5 V
1.5 V
(4.2 V)
VREF
<Error
<Error
<Error
Amp.1> VREF
Amp.2> VREF
Amp.3> VREF
(45 pF)
<OSC>
RT
R
T
17
47 k
<PWM
VREF
Comp.>
bias
(V
<REF>
Bias voltage
block
CC
5
<UVLO>
<VH>
UVLO)
VREF
ULVO
C9
0.1 F
(0.77 V)
<OUT>
V
0.91 V
CC
GND
<CTL>
215 k
V
23
35 k
(V
Drive
CC
MB3875/MB3877
CC
V
CC
5 V)
21
20
19
18
14
0.1 F
V
OUT
VH
V
CTL
C5
CC
CC
(O)
1 :
2 :
3 :
4 :
D1
C7
0.1 F
MB3875
MB3877
Vin = 16 V
Vin = 19 V
MB3875
MB3877
MB3875
MB3877
27 H
Q1
L1
100 F
C1
22 F
C2
100 k
150 k
0
82 k
16 V/19 V
19 V
12.6 V
16.8 V
100 F
0.033
A
C3
R
S
B
BATT
4
19
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