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ACT4515 Datenblatt(PDF) 12 Page - Active-Semi, Inc

Teilenummer ACT4515
Bauteilbeschribung  Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
PDF  16 Pages
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Hersteller  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4515 Datenblatt(HTML) 12 Page - Active-Semi, Inc

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ACT4515
Rev 4, 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
1000
900
800
700
600
500
400
Temperature (°C)
-20
10
40
70
100
130
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
15
20
25
30
35
Switching Frequency vs. Input Voltage
250
230
210
190
170
150
130
110
VIN = 12V
RISET = 33kΩ
CC Current vs. Input Voltage
1000
900
800
700
600
500
400
Input Voltage (V)
10
14
18
22
26
30
34
RISET = 33kΩ
VIN = 24V
(Circuit of Figure 7, IISET = 0.9A, L = 82µH, CIN = 10µF, COUT = 22µF, TA = 25°C, unless otherwise specified.)
Switching Frequency vs. Feedback Voltage
260
210
160
110
60
10
Feedback Voltage (mV)
0
100
200
300
400
500
600
700
800
900



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