MB3785A Datasheet, PDF (8/29 Pages) Fujitsu Component Limited. – Switching Regulator Controller (4 Channels plus High-Precision, High-Frequency Capabilities)

MB3785A
s ABSOLUTE MAXIMUM RAGINGS (See WARNING)
Parameter
Symbol
Conditions
Power supply voltage
Control input voltage
Power dissipation
Operating ambient
temperature
VCC
VICTL
PD
TOP
—
—
Ta ≤ +25°C
—
Storage temperature
Tstg
—
* : The packages are mounted on the epoxy board (4 cm × 4 cm).
Rating
20
20
550*
–30 to 85
–55 to 125
(Ta = +25°C)
Unit
V
V
mW
°C
°C
WARNING: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded.
Functional operation should be restricted to the conditions as detailed in the operational sections of
this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
s RECOMMENDED OPERATING CONDITIONS
Parameter
Power supply voltage*
Error amp. input voltage
Comparator input voltage
Control input voltage
Output current
Timing capacitance
Timing resistance
Oscillation frequency
Operating ambient
temperature
Symbol
VCC
VI
VI
VICTL
IO
CT
RT
fOSC
TOP
Conditions
—
—
—
—
—
—
—
—
—
Min.
4.5
–0.2
–0.2
–0.2
3.0
68
5.1
100
–30
Value
Typ.
6.0
—
—
—
—
—
—
500
25
(Ta = +25°C)
Max.
18
VCC –0.8
VCC
18
30
1500
100
1000
85
Unit
V
V
V
V
mA
pF
kΩ
kHz
°C
* : The minimum value of the recommended supply voltage is 3.6 V except when the device operates with constant
output sink current.
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