mb3881pff Fujitsu Microelectronics, Inc., mb3881pff Datasheet - Page 9

• Manufacturer Part Number: mb3881pff
• Description: 8-ch Dc/dc Converter Ic With Synchronous Rectifier For Voltage Step-up And Step-down
• Manufacturer: Fujitsu Microelectronics, Inc.

* : The packages are mounted on the epoxy board (10 cm
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the
Power supply voltage
Output current
Output peak current
Power dissipation
Storage temperature
Power supply voltage
Reference voltage output current
Reference voltage output current
Input voltage
Control input voltage
SYNC input voltage
Output current
Output current setting resister
Oscillator frequency
Timing capacitor
Timing resistor
VB
Soft-start capacitor
Short detection capacitor
Operating ambient temperature
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
pin
capacitor
Parameter
Parameter
semiconductor device. All of the device’s electrical characteristics are warranted when the device is
operated within these ranges.
Always use semiconductor devices within their recommended operating condition ranges. Operation
outside these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on
the data sheet. Users considering application outside the listed conditions are advised to contact their
FUJITSU representatives beforehand.
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
Symbol
Tstg
V
V
P
I
I
CC
DD
O
O
D
Symbol
V
C
V
V
V
f
C
I
V
Ta
R
OSC
C
R
C
SYNC
OR
I
I
SCP
CTL
CC
DD
B
O
VB
IN
B
T
T
S
OUT pin
OUT pin, Duty
Ta
CH8
CH1 to CH7,
4 V
CH1
VREF pin
VB pin
CTL pin
SYNC pin
OUT pin
RB8 pin
IN5, IN6, IN1 to IN7,
IN5 (C) , IN6 (C) , OVP pin
IN8, IN8, IN8 (C) , IN8 (C) pin
IN7 pin
25 C
Condition
VCC(O) VSS(O)
Condition
5
10 cm).
9 V
Min.
55
Rating
Min.
0.22
100
1.8
0.1
2.4
6.8
47
0.5
0
0
1
30
4
4
0
0
1
Max.
800*
200
17
17
20
125
Value
Typ.
0.39
100
500
0.1
0.1
24
11
9
9
5
2
25
MB3881
V
V
V
CC
CC
CC
Max.
800
680
V
V
1.0
1.0
13
15
51
13
51
9
0
0
85
CC
CC
Unit
mW
mA
mA
1.8
0.9
1.8
V
V
C
Unit
kHz
mA
mA
mA
k
k
pF
V
V
V
V
V
V
V
V
F
F
F
C
9