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ACT4514 датащи(PDF) 12 Page - Active-Semi, Inc

номер детали ACT4514
подробное описание детали  Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
PDF  16 Pages
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производитель  ACTIVE-SEMI [Active-Semi, Inc]
домашняя страница  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4514 датащи(HTML) 12 Page - Active-Semi, Inc

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ACT4514
Rev 1, 21-Jul-11
Active-Semi
Innovative Power
TM
- 12 -
www.active-semi.com
Copyright © 2011 Active-Semi, Inc.
TYPICAL PERFORMANCE CHARACTERISTICS
Load Current (mA)
10
100
1000
10000
Input Voltage (V)
10
12
18
24
30
32
Switching Frequency vs. Input Voltage
240
220
200
180
160
140
120
100
Switching Frequency vs. Feedback Voltage
250
200
150
100
50
0
Feedback Voltage (mV)
0
100
200
300
400
500
600
700
800
900
1000
900
800
700
600
500
400
Temperature (°C)
-40
-25
0
25
50
75
80
CC Current vs. Input Voltage
1000
900
800
700
600
500
400
Peak Current Limit vs. Duty Cycle
2500
2250
2000
1750
1500
1250
1000
750
500
250
0
Duty Cycle
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
100
90
80
70
60
50
40
Efficiency vs. Load Current
CC Current vs. Temperature
VIN = 10V
VIN = 12V
VOUT = 5V
Input Voltage (V)
10
12
18
24
30
32
VIN = 12V
RISET = 33kΩ
RISET = 33kΩ
VIN = 24V
(Circuit of Figure 7, IISET = 0.9A, L = 82µH, CIN = 10µF, COUT = 22µF, TA = 25°C, unless otherwise specified.)



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