Typical Inrush Limiting and Transient Immunity Characteristics
Inrush Limiting
Tek
Stop:
Single Seq. 5.00MS/s
[
T
Ch1 Zoom:
Transient Immunity
]
Tek Run: 10.0MS/s
1.0X Vert 0.005X Horz
@ 200.0V
INPUT CURRENT
INPUT VOLTAGE
Ch1=Vdc in
©
INPUT TRANSIENT
Ch1=Input
Ch2=Output
Ch2=Vdc out
Ch3=Idc in
@0.2A/mV
4
©
©
OUTPUT VOLTAGE
2
©
OUTPUT VOLTAGE
48V offset
2
©
Ch1
10.0 V
Ch2
Ch4
10.0 V
10.0mVΩ
M2.00ms
Ch1
31.8 V
Ch1
25.0V
Ch2
25.0V
M5.00µs Ch4
8.2A
Figure 1—
I
nrush current with 330µF
on the IAM4820C12.
Figure 2—
Output response to a transient on the
48V input of a FM48-FiltMod/IAM48 combination.
Typical Transient, Surge Protection and Filtering Solution
Note:
The IAM48 is shown in the on state.
To disable, open the connection to pin 3.
–IN
–IN
5
– IN
NC
NC
+IN
– OUT
– IN
NC
+ IN
– OUT
1
2
4
3
2
7
NC
–OUT
PR
PC
+IN
3
FM48
GND
+ OUT
IAM48
Off/On
IAM2
7
+IN
+OUT
4
2nd Generation
48Vdc Input
DC-DC Converters
–S
SC
+S
+OUT
6
6
1
5
Figure 3
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