LT3781 データシートの表示（PDF） - Linear Technology
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LT3781 Datasheet PDF : 20 Pages
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LT3781
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Supply current specification does not include external FET gate
charge currents. Actual supply currents will be higher and vary with
operating frequency, operating voltages, and the type of external switch
elements used. See Applications Information.
Note 3: Guaranteed but not tested.
Note 4: The LT3781E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
ambient temperature range are assured by design, characterization and
correlation with statistical process controls. For guaranteed performance
to specifications over the –40°C to 85°C operating ambient temperature
range, the LT3781I is available.
TYPICAL PERFOR A CE CHARACTERISTICS
Shutdown Mode: VCC vs ICC
18.4
TA = 25°C
18.2
Shutdown Mode: VCC vs
Temperature (ICC = 1mA)
18.20
18.15
18.0
18.10
17.8
18.05
17.6
100µ
300µ
1m
ICC (A)
ICC Supply Current
vs Temperature
20
19
3m
10m
3781 • G01a
VCC = 12V
18
17
16
15
–55 –40
0
40
80
TEMPERATURE (°C)
125
3781 G01
18.00
–55 –40
0
40
80
TEMPERATURE (°C)
125
3781 • G01b
ICC Supply Current
vs VCC Supply Voltage
18
TA = 25°C
17
16
15
9 10
12
14
16
SUPPLY VOLTAGE (V)
18
3781 G03
3781f
4
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