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MB39A123 Datasheet(PDF) 6 Page - Fujitsu Component Limited.

No. de Pieza. MB39A123
Descripción  6 ch DC/DC Converter IC with Synchronous Rectification
Descarga  44 Pages
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Fabricante  FUJITSU [Fujitsu Component Limited.]
Página de inicio  http://edevice.fujitsu.com/fmd/en/index.html
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MB39A123 Datasheet(HTML) 6 Page - Fujitsu Component Limited.

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MB39A123
6
■ BLOCK DIAGRAM
−INE2
OUT2
VIN
(5 V-11 V)
OSC
0.9 V
0.4 V
Power
ON/OFF
CTL
VR
1.0 V/1.23 V
VREF
VCC
bias
2.0 V
CTL
GND
CS2
FB2
DTC2
−INE3
OUT3
CS3
FB3
DTC3
−INE5
OUT5
CS5
FB5
DTC5
1 V
−INE6
CS6
FB6
DTC6
GNDO
OUT6
VREF
SCP
Comp.
−INS
CSCP
RT
CT
VREF
Drive3
Error
Amp3
1.23 V
PWM
Comp.3
<<ch.3>>
VREF
UVLO2
Drive6
Error
Amp6
PWM
Comp.6
<<ch.6>>
N-ch
VREF
−INE1
VCCO
OUT1-1
Vo1
(1.2 V)
CS1
FB1
A
Error
Amp1
(1.0 V)
PWM
Comp.1
<<ch.1>>
P-ch
VREF
1.1
µA
Drive2
Error
Amp2
1.23 V
PWM
Comp.2
<<ch.2>>
VREF
Drive5
Error
Amp5
1.23 V
PWM
Comp.5
<<ch.5>>
VREF
N-ch
1.23 V
F
Vo6-2
(5.0 V)
Vo6-1
(15 V)
SCP
UVLO1
1.1
µA
1.1
µA
1.1
µA
1.1
µA
N-ch
OUT1-2
P-ch
P-ch
Vo2
(2.5 V)
B
Vo3
(3.3 V)
C
CHCTL
CTL1
CTL2
CTL3
41
40
42
43
33
46
47
45
32
21
20
22
30
26
27
25
28
29
48
1
10
8
13
9
12
11
38
39
37
36
35
44
23
24
34
3
4
2
CTL4
5
CTL5
6
−INE4
OUT4
D
CS4
FB4
DTC4
Drive4
Error
Amp4
1.23 V
PWM
Comp.4
<<ch.4>>
VREF
1.1
µA
P-ch
Vo4
(
−7.5 V)
D
16
17
15
31
14
<< 48 Pin >>
PKG:BCC-48++
:LQFP-48P
7
CTL6
19
18
−INA
OUTA
INVAmp
E
Vo5
(15 V)
A
B
C
E
F
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Reference voltage
1.0 V
± 1 %
Reference voltage
1.23 V
± 1 %
Reference voltage
1.23 V
± 1 %
Reference voltage
1.23 V
± 1 %
Reference voltage
1.23 V
± 1 %
Reference voltage
1.23 V
± 1 %
Io = 300 mA
at VCCO = 7 V
Io = 300 mA
at VCCO = 7 V
Io = 300 mA
at VCCO = 7 V
Io = 300 mA
at VCCO = 7 V
Io = 300 mA
at VCCO = 7 V
H:ON (Power ON)
L:OFF(Standby mode)
VTH = 1.0 V
Transformer
Step-down
(Synchronous
Rectification)
Step-down
Step-up
Inverting
Step-down
Precision
± 1 %
Precision
± 0.8 %
Precision
± 0.5 %
(2.0 MHz)
Max Duty
92 %
± 5 %
Max Duty
92 % ± 5 %
Max Duty
92 % ± 5 %
H:UVLO release
H:at SCP
Dead Time
(td = 50 ns)
L priority
VREF
L priority
VREF
L priority
VREF
L priority
VREF
L priority
VREF
L priority
L priority
L priority
L priority
L priority
L priority
Charge current
1
µA
H:ON
L:OFF
VTH = 1.0 V
Io = 300 mA
at VCCO = 7 V
Io = 300 mA
at VCCO = 7 V
F
Error Amp power supply
SCP Comp. power supply
Error Amp
reference
Short-circuit
detection signal
(L: at short-circuit)
Drive1-1
Drive1-2
Max Duty
92 %
± 5 %
Max Duty
92 %
± 5 %


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