MB3882 Fujitsu Media Devices, MB3882 Datasheet - Page 8

• Manufacturer Part Number: MB3882
• Description: 2-channel DC/DC Converter IC with Synchronous Rectifier
• Manufacturer: Fujitsu Media Devices

8
MB3882
* : Typical setting value
Error Amp
Block
[Error Amp.]
8.
PWM
Comparator
Block
[PWM Comp.]
9.
Dead time
Adjustment
Block
[DTC]
10. Output
Block
[Drive]
7.
Parameter
Frequency
band width
Output voltage
Output source
current
Output sink
current
Threshold
voltage
Maximum
duty cycle
Output current
Output voltage
Output current
rectifier side)
Output voltage
rectifier side)
Diode voltage
(main side)
(main side)
(synchronous
(synchronous
Symbol Pin No.
I
I
I
SOURCE1
SOURCE2
SOURCE
I
I
V
V
V
I
V
V
BW
V
V
SINK1
SINK2
V
Dtr
SINK
V
OH1
OH2
FBL
OL1
OL2
FBH
TH
TL
D
11, 14
11, 14
11, 14 OUT2
11, 14 OUT2
10, 15 VB
6, 19
6, 19
6, 19
6, 19
6, 19
6, 19
6, 19
8, 17
8, 17
8, 17
8, 17
8, 17
AV
FB
FB
Duty cycle
Duty cycle
RT
CT
Duty
Duty
OUT1
CB
OUT1
CB
Duty
Duty
(t
(t
(t
(t
1 f
1 f
1 f
1 f
1.6 V
1.6 V
0 dB
10 k ,
470 pF
10 mA
17 V, VS
17 V, VS
Conditions
5
5
5
5
(VCC
OSC
OSC
OSC
OSC
100 mA,
100 mA
100 mA,
100 mA
0
Dtr
Duty)
Duty)
Duty)
Duty)
12 V, VB
12 V
12 V
0 mA, VREF
CB
Min.
2.2
1.5
1.2
2.5
2.5
85
Value
CB
VS
800*
900*
900*
Typ.
1.81
700*
750*
2.5
0.8
9.0
1.3
0.9
0.9
4.1
1.0
0.9
100
90
0 mA, Ta
Max.
VS
1.0
2.0
1.4
1.4
1.1
95
45
(Continued)
25 C)
Unit
kHz
mA
mA
mA
mA
mA
V
V
V
V
V
V
V
V
V
A