MB3875_03 Datasheet, PDF (5/26 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging

MB3875/3877
s ABSOLUTE MAXIMUM RAGINGS
Parameter
Symbol
Conditions
Rating
Unit
Min
Max
Power supply voltage
VCC
VCC,VCC(O)
—
28
V
Output current
IOUT
—
—
60
mA
Peak output current
IOUT Duty ≤ 5% (t =1 / fOSC × Duty)
—
500
mA
Power dissipation
PD Ta ≤ +25°C
—
740*
mW
Storage temperature
Tstg
—
–55
+125
°C
*: The package is mounted on the dual-sided epoxy board (10 cm × 10 cm).
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
s RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Conditions
Value
Unit
Min
Typ
Max
Power supply voltage
VCC VCC,VCC(O)
7
—
25
V
Reference voltage output
current
IREF
—
–1
—
0
mA
VH pin output current
IVH
—
0
—
30
mA
VIN IN3
0
—
17
V
Input voltage
VINE –INE1,–INE2,+INE1,+INE2
0
—
VCC – 1.8
V
VINC +INC1,+INC2,–INC1,–INC2,
0
—
VCC
V
CTL pin input voltage
VCTL
—
0
—
25
V
Output current
IOUT
—
–45
—
45
mA
Peak output current
IOUT Duty ≤ 5% (t =1 / fOSC × Duty) –450
—
450
mA
Oscillator frequency
fOSC
—
100
290
500
kHz
Timing resistor
RT
—
33
47
130
kΩ
Soft-start capacitor
CS
—
—
2200
100000 pF
VH pin capacitor
CVH
—
—
0.1
1.0
µF
Reference voltage output
capacitor
CREF
—
—
0.1
1.0
µF
Operating temperature
Ta
—
–30
+25
+85
°C
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the
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.
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