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MB39A104
22
APPLICATION EXAMPLE
A
B
B
+ +
A
+
+
R10R11
R9
68 k
220
k
C16
0.1
µF
C12
1000 pF
C14
1000 pF
C21
1000 pF
150 k
56 k
R15R16
R14
68 k
220
k
R13
C17
0.1
µF
13 k
100 k
R8
VIN
(7 V to 19 V)
R1
24 k
C1
100 pF
C20
0.1 µF
C10
0.1 µF
R5
C6
10
µF
C8
82 µF
C7
10
µF
C11
0.1 µF
2.7 k
Q2 L2
V
O2
(3.3 V)
15 µF
D2
R4
C2
10
µF
C4
82 µF
C3
10
µF
2.7 k
Q1 L1
V
O1
(5.0 V)
15 µF
D1
+
+
+
+
+
+
+
+
+
+
+
+
10
VREF
VREF
11
9
6
15
14
16
19
8
INE1
CS1
FB1
DTC1
INE2
CS2
FB2
DTC2
CSCP
12 13
1817
RT CT
GNDVREF
24
7
23
2
20
21
22
5
4
3
1
CTL
VCC
GNDO
VH
ILIM2
VS2
OUT2
ILIM1
VS1
OUT1
VCCO
10 µA
1.24 V
1.24 V
3.1 V
SCP
Comp.
SCP
Logic
UVLO
OSC
VREF
Bias
Voltage
Current
Protection
Logic
Current
Protection
Logic
I
O = 200 mA
at VCCO = 12 V
IO = 200 mA
at VCCO = 12 V
VR1
VH
V
CC 5 V
1.24 V
2.5 V
1.5 V
5.0 V
bias
Power
ON/OFF
CTL
10 µA
Pch
Drive2
Pch
Drive1
PWM
Comp.1
PWM
Comp.2
Error
Amp2
Error
Amp1
CH1
CH2
Step-
down
Step-
down
L priority
L priority
L priority
L priority
H priority
accuracy
± 1%
H:
UVLO release
H:
at OCP
H:
at SCP
Charging
current (1 A)
Error Amp Reference
Error Amp Power Supply
CH1 ON/OFF signal
(Hiz : ON, L : OFF)
CH2 ON/OFF signal
(Hiz : ON, L : OFF)
H : ON (Power ON)
L : OFF (Standby mode)
V
TH = 1.4 V