adum3471 Analog Devices, Inc., adum3471 Datasheet - Page 22

• Manufacturer Part Number: adum3471
• Description: Pwm Controller And Transformer Driver With Quad-channel Isolators Adum3470/adum3471/adum3472/adum3473/adum3474
• Manufacturer: Analog Devices, Inc.

ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474
Figure 28. Typical V
Figure 27. Typical V
Figure 29. Typical V
18
16
14
12
10
5
4
3
2
1
0
5
4
3
2
1
0
8
6
4
2
0
0
0
0
5
5
5
ISO
ISO
ISO
Startup 3.3 V In to 3.3 V Out with 10 mA, 50 mA, and
Startup 5 V In to 3.3 V Out with 10 mA, 50 mA, and
Startup 5 V In to 15 V Out with 10 mA, 20 mA, and
400 mA Output Load
250 mA Output Load
100 mA Output Load
10
10
10
TIME (ms)
TIME (ms)
TIME (ms)
15
15
15
20
20
20
V
V
V
V
V
V
V
V
V
ISO
ISO
ISO
ISO
ISO
ISO
ISO
ISO
ISO
AT 10mA
AT 50mA
AT 400mA
AT 10mA
AT 50mA
AT 250mA
AT 10mA
AT 20mA
AT 100mA
25
25
25
30
3
30
0
Rev. 0 | Page 22 of 32
Figure 32. Typical V
Figure 30. Typical V
Figure 31. Typical V
6.0
5.5
5.0
4.5
6.0
5.5
5.0
4.5
1.0
0.5
4.0
3.5
3.0
4.0
3.5
3.0
1.0
0.5
4.0
3.5
3.0
4.0
3.5
3.0
1.0
0.5
0
0
0
–2
–2
–2
10% to 90% Load of 400 mA Load at 500 kHz f
C
C
C
C
OUT
OUT
OUT
OUT
0
0
0
to 90% of 250 mA Load at 500 kHz f
= 47µF, L1 = 100µH
= 47µF, L1 = 100µH
ISO
90% of 400 mA Load at 500 kHz f
ISO
= 47µF, L1 = 47µH
ISO
= 47µF, L1 = 47µH
Load Transient Response 3.3 V In to 3.3 V Out at 10%
Load Transient Response 5 V In to 5 V Out at 10% to
Load Transient Load Response 5 V In to 3.3 V Out at
90% LOAD
90% LOAD
90% LOAD
2
2
2
C
C
OUT
OUT
= 47µF, L1 = 47µH
= 47µF, L1 = 100µH
4
4
4
TIME (ms)
TIME (ms)
TIME (ms)
6
6
6
10% LOAD
10% LOAD
10% LOAD
8
8
8
10
10
10
SW
SW
SW
12
12
12
14
14
14