MB39A114 Datasheet, PDF (30/54 Pages) Fuji Electric – DC/DC Converter IC for Charging Li-ion Battery

MB39A114
s APPLICATION EXAMPLE
VIN
(8 to 25 V)
D2
R4
180 kΩ
R5
330 kΩ
R6
30 kΩ
R10
120 kΩ
C8
10000 pF
−INE1
8
−
+
2.6 V
<CV Comp.>
CVM
5
R11
30 kΩ
R7
22 kΩ
OUTC1
10
+INC1
13
−INC1
12
<Current Amp 1>
+
−ײ⁰
VREF
<Error Amp 1>
−
++
<OV Comp.>
+
−
1.4 V
OVP
18
+INE1
9
0.2 V ₊ ^{<UV Comp.>}
C10
4700 pF
R9
10 kΩ
A
B
R12
30 kΩ
−INE2
4
R8
100 kΩ
OUTC2
2
+INC2
24
−INC2
1
+INE2
3
<Current Amp 2>
+
−ײ⁰
<Error Amp 2>
−
++
−
−INC2
(VO)
<PWM Comp.>
+
+
−
VCC
21
C12
0.1 µF
C7
0.1
µF
<OUT>
OUT
R16
200 kΩ
R13
20
kΩ
Q2
R14
1 kΩ
R15
120 Ω
FB12
7
VREF
Drive
20
VH
19
<Error Amp 3>
VCC − 6 V
SW
−INE3
R1
16
−
−2.5 V
−1.5 V
VH
Bias
R2
++
Voltage
C6
1500 pF
R3
330 kΩ
FB3
15
SEL
11
H : 4Cell
L : 3Cell
<SOFT>
VREF
10 µA
C11
0.022 µF
CS
22
4.2 V/3.15 V
UVLO
VREF
UVLO
4.2 V
bias
VCC
<OSC>
500 kHz
<REF> <CTL>
CT
45 pF
VREF
5.0 V
CTL
14
17
RT
R2
47 kΩ
6
VREF
23
GND
C9
0.1 µF
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
30