MB3873 Datasheet, PDF (5/22 Pages) Fujitsu Component Limited. – Multi-Resonance AC/DC Converter IC

MB3873
s ABSOLUTE MAXIMUM RAGINGS
Parameter
Symbol
Conditions
Rating
Unit
Min.
Max.
Power supply voltage
VCC
VCC, VCC (O) pin
—
30
V
Output current
IO
OUT pin
—
20
mA
Peak output current
IO
OUT pin, Duty ≤ 5 %
—
300
mA
Power dissipation
PD
Ta ≤ +25°C
—
540*
mW
Storage temperature
Tstg
—
−55
+125
°C
* : The packages are 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
Power supply voltage
Reference voltage output current
Input voltage
Output current
Triangular wave
oscillator frequency
Timing capacitor
Timing resistor
Control frequency
OSC control current
Soft start capacitor
Delay time capacitor
Dead time resistor
Operating ambient temperature
VCC
VCC (O)
IOR
VIN
IO
—
—
VCC (O) = VREF
OTP, OVP pin
+IN, –IN pin
OUT pin
fOSC FB = VREF, CS = OPEN
CT
—
RT
—
fOSC FB controlled
IFB
FB pin
CS
—
CD
—
RD
—
Ta
—
Min.
10
5
–10
0
0
–15
10
100
15
10
–1
—
—
36
–30
Value
Typ.
18
VREF
—
—
—
—
105
220
33
105
—
0.1
0.1
120
25
Max.
28
28
0
VCC
VREF
15
300
4700
47
800
—
1.0
1.0
250
105
Unit
V
V
mA
V
V
mA
kHz
pF
kΩ
kHz
mA
µF
µF
kΩ
°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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