AIC1647 查看數據表（PDF） - Analog Intergrations
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AIC1647 Datasheet PDF : 11 Pages
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AIC1647
TYPICAL PERFORMANCE CHARACTERISTICS
1.6
95.0
1.4
94.5
94.0
1.2
93.5
1.0
93.0
92.5
92.0
-50
0
50
100
150
Temperature (°C)
Fig. 2 Feedback Voltage vs. Temperature
0.8
0.6
0.4
-50
Fig. 3
0
50
100
150
Temperature (°C)
Switching Frequency vs. Temperature
70
60
FB=VIN
50
40
Non-Switching
30 2
3
4
5
6
Supply Voltage (V)
Fig. 4 Supply Current vs. Supply Voltage
1.6
FB=GND
1.4
1.2
1.0
0.8
0.6
2
Fig. 5
Switching
3
4
5
6
Supply Voltage (V)
Supply Current vs. Supply Voltage
1.4
1.3
1.2
1.1
1.0
0.9
0.8
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Supply Voltage (V)
Fig. 6 RDS-ON vs. Supply Voltage
100
VIN=3.6V; L=10µH
80 CIN=1µF, COUT=0.22µF
3LEDs
60
100Hz & 200Hz
40
500Hz
20 1KHz
2KHz
00
Fig. 7
3KHz
20
40
60
80
100
SHDN PIN PWM Duty (%)
Dimming Control by Shutdown PIN
4
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