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ADuM4471CRIZ Datasheet(PDF) 21 Page - Analog Devices

Part # ADuM4471CRIZ
Description  Isolated Switching Regulator with Quad-Channel Isolators
PDF  36 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADuM4471CRIZ Datasheet(HTML) 21 Page - Analog Devices

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Data Sheet
ADuM4470/ADuM4471/ADuM4472/ADuM4473/ADuM4474
Rev. 0 | Page 21 of 36
70
60
50
40
30
20
10
0
0
200
175
150
125
100
75
50
25
LOAD CURRENT (mA)
+25°C
–40°C
+105°C
Figure 19. Typical Efficiency at 3.3 V In to 5 V Out over Temperature with 1:3
Coilcraft Transformer (CR7984-CL) at 500 kHz fsw
80
70
60
50
40
30
20
10
0
0
140
130
120
110
100
90
80
70
60
50
40
30
20
10
LOAD CURRENT (mA)
fSW = 1MHz
fSW = 700kHz
fSW = 500kHz
fSW = 200kHz
Figure 20. 5 V Input to 15 V Output Efficiency at Various Switching
Frequencies with 1: 3 Coilcraft Transformer (CR7984-CL)
90
80
70
60
50
40
30
20
10
0
0
140
130
120
110
100
90
80
70
60
50
40
30
20
10
LOAD CURRENT (mA)
fSW = 1MHz
fSW = 700kHz
fSW = 500kHz
fSW = 200kHz
Figure 21. 5 V Input to 15 V Output Efficiency at Various Switching
Frequencies with 1:3 Halo Transformer (TGSAD-290V8LF)
80
70
60
50
40
30
20
10
0
0
140
130
120
110
100
90
80
70
60
50
40
30
20
10
LOAD CURRENT (mA)
+25°C
–40°C
+105°C
Figure 22. 5 V Input to 15 V Output Efficiency over Temperature with Coilcraft
Transformer (CR7984-CL) at 500 kHz fSW
80
70
60
50
40
30
20
10
0
0
70
65
60
55
50
45
40
35
30
25
20
15
10
5
LOAD CURRENT (mA)
5V IN TO 12V OUT
5V IN TO 15V OUT
Figure 23. Double-Supply Efficiency with Coilcraft Transformer (CR7985-CL)
at 500 kHz fSW
15
10
5
0
0
25
20
15
10
5
DATA RATE (Mbps)
VCC = 5V, VISO = 5V
VCC = 5V, VISO = 3.3V
VCC = 3.3V, VISO = 3.3V
Figure 24. Typical Single-Supply ICH Supply Current per Forward Data
Channel (15 pF Output Load)



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