AIC1650 데이터 시트보기 (PDF) - Analog Intergrations
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AIC1650 Datasheet PDF : 6 Pages
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AIC1650
TYPICAL PERFORMANCE CHARACTERISTICS (Ta=25°C)
VREF Source Current vs VIN
350
Shutdown Current vs VIN
20
300
15
250
10
200
5
150 4
100
90
80
70
60
50
4
8
12
16
20
VIN (V)
Duty Cycle vs VIN Voltage
Ta=0°C
Ta=70°C
Ta=25°C
8
12
16
20
VIN (V)
0
4
6
8
10
12
14
16
18
20
VIN (V)
330
Frequency vs VIN Voltage
280
Ta=0°C
230
180
Ta=25°C
Ta=70°C
130
80
4
8
12
16
20
VIN (V)
BLOCK DIAGRAM
1
VIN
VREF 2
3
SHDN
4
FB
PFM
OSCILLATOR
CURRENT LIMIT
COMPARATOR
+
-
LATCH
V IN
70mV
V IN
1.22V
REFERENCE
VOLTAGE
OUTPUT DRIVER
+
-
ERROR COMPARATOR
8
CL
7
DHI
6
DLOW
5
GND
3
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