MB39A112 Datasheet, PDF (5/35 Pages) Fujitsu Component Limited. – 3-ch DC/DC Converter IC

MB39A112
s ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Conditions
Rating
Unit
Min
Max
Power supply voltage
Vcc VCC, VCCO terminal

28
V
Output current
Io OUT1, OUT2, OUT3 terminal

20
mA
Peak output current
IOP Duty ≤ 5 % (t = 1/fosc × Duty)

400
mA
Power dissipation
PD Ta ≤ + 25 °C

1280*
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, VCCO terminal
7
12
25
V
Input voltage
Output current
Oscillation frequency
Timing capacitor
Timing resistor
VH terminal capacitor
Soft-start capacitor
VIN
− INE terminal
0
IO
OUT1, OUT2, OUT3 terminal − 15
IVH
VH terminal
0
fosc

250
CT

22
RT

4.7
CVH VH terminal

CS
CS1, CS2, CS3 terminal

-


1200
100
10
0.1
0.1
Vcc − 1.8 V
15
mA
30
mA
2600
kHz
1000
pF
22
kΩ
1.0
µF
1.0
µF
Short-circuit detection
capacitor
CSCP CSCP terminal

0.01
1.0
µF
Operating ambient
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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