MB39A113 Datasheet, PDF (27/51 Pages) Fujitsu Component Limited. – ASSP for Power Supply Applications (Secondary Battery)

MB39A113
s APPRICATION EXAMPLE
D2
VIN
(8 V to 25 V)
R4
180 kΩ
R5
330 kΩ
R6
30 kΩ
R10
120 kΩ
C8
10000 pF
−INE1
8
R11
30 kΩ
R7
22 kΩ
OUTC1
10
+INC1
13
−INC1
12
<Current Amp 1>
+
×20
−
R16
200 kΩ
+INE1
9
C10
4700 pF
R9
10 kΩ
A
B
R12
30 kΩ
R13
20 kΩ
Q2
SW
R14
1 kΩ
R15
120 Ω
R19
100 kΩ
R18
200 kΩ
−INE2
4
R8
100 kΩ
OUTC2
2
+INC2
24
−INC2
1
+INE2
3
FB12
7
−INE3
16
<Current Amp 2>
+
−ײ⁰
C6
1500 pF
R3
330 kΩ
OUTD
R17
11
100 kΩ
FB3
15
<SOFT>
VREF
10 µA
C11
0.022 µF
CS
22
VREF
<Error Amp 1>
−
+
+
<CV Comp.>
−
+
2.6 V
<OV Comp.>
+
−
1.4 V
CVM
5
OVP
18
<Error Amp 2>
−
+
+
0.2 V
+
−
<UV Comp.>
−INC2
(VO)
<PWM Comp.>
++
−
VCC
21
C12
0.1 µF
C7
0.1
µF
<OUT>
OUT
Drive
20
VREF
<Error Amp 3>
−
+
+
4.2 V
−2.5 V
−1.5 V
VH
19
VCC − 6 V
VH
Bias
Voltage
UVLO
VREF
UVLO
C1
C2
4.7 4.7
µF
µF
Q1
AB
L1
15 µH
+
D1
C3
22
µF
I1
R27
100 kΩ
VO Q3
R1
0.033 Ω
C4
4.7 µF
Battery
4.2 V
bias
VCC
<OSC>
500 kHz
CT
45 pF
<REF> <CTL>
VREF
5.0 V
17
RT
R2
47 kΩ
6
VREF
23
GND
C9
0.1 µF
CTL
14
27