45 Data Sheet
IAM48TM
Features
•Wide input voltage range
•High surge withstand
•97% Efficiency
•Input reverse polarity protection
•On/Off control feature
•MicroMod Package
Primary Function
•Inrush current limiting
•Input transient protection
Products Highlights
The 2nd Generation IAM48 is a component level, DC input front-end designed to occupy minimum board space while providing maximum transient protection for today’s sophisticated electrical systems. The IAM48, in combination with Vicor’s 48V input 2nd Generation DC-DC converters, provides a highly efficient, high density power system with outputs from 1 to 100Vdc.
When the IAM48 is used with the Vicor FM48-FiltMod, the combination meets the conducted EMI specifications of Telcordia, FCC and European Norms.
Compatible Products
•FM48-FiltMod
•2nd Generation 48V input DC-DC converters
Part Numbers
IAM 48 10 C 1 1
Output |
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Current |
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10=10Amp |
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20=20Amp |
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Pin Style |
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Baseplate |
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1= Short Pin |
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Product Grade |
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1=Slotted |
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C=-20° to 100°C |
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2= Long Pin |
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2=Threaded |
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S= Short ModuMate |
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T=-40° to 100°C |
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3=Thru-hole |
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N= Long ModuMate |
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Input Power
Conditioning Module
Shown actual size: 2.28 x 1.45 x 0.5 in 57,9 x 36,8 x 12,7 mm
Absolute Maximum Rating
Parameter |
Rating |
Unit |
Notes |
+In to –In |
80 |
Vdc |
Continuous |
+In to –In |
100 |
V |
100ms |
+Out to –Out |
75 |
Vdc |
Continuous |
Mounting torque |
5(0.57) |
in-lbs |
6 each, #4-40 or M3 |
Pin soldering temperature |
500 (260) |
°F(°C) |
<5 sec; wave solder |
Pin soldering temperature |
750 (390) |
°F(°C) |
<7 sec; hand solder |
Storage temperature C–,T–Grade |
-40 to +125 |
°C |
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Operating temperature C–Grade |
-20 to +100 |
°C |
Baseplate |
Operating temperature T–Grade |
-40 to +100 |
°C |
Baseplate |
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IAM48 Specifications
(typical at TBP = 25°C, nominal line, unless otherwise specified)
Parameter |
Min |
Typ |
Max |
Remarks |
Input voltage |
36Vdc |
48Vdc |
76Vdc |
Continuous |
Inrush limiting |
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14mA/µF |
6A with 330µF capacitor (See Fig 1) |
Safety approvals |
UL 1950, CSA 22.2-950, EN 60950 |
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Transient immunity |
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Telcordia-GR-499-CORE Section 132 |
200V |
1µsec duration |
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ETS 300 386-1 Class 2 |
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200V |
5.0µsec rise time, 50µsec duration surge |
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250V |
1-100 nsec burst |
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When used with Vicor |
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FM-48 filter module |
Dielectric withstand |
1,500Vrms |
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Input/Output to base |
Output current |
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Delivered current to any |
IAM4810C12 |
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10A |
combination of Vicor’s 2nd Generation |
IAM4820C12 |
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20A |
48Vin DC-DC converters |
Efficiency |
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97% |
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Internal voltage drop is 1.1V max. |
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@ 20A, 100°C baseplate |
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ON/OFF control |
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ENABLE(ON) |
0.0Vdc |
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1.0Vdc |
Referenced to –Vout. |
DISABLE(OFF) |
3.5Vdc |
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5.0Vdc |
100KΩ internal pull-up resistor |
Reverse polarity protection |
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No damage to module, external |
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fuse required |
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External capacitance |
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See Fig 3 |
IAM4810C12 |
10µF |
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150µF |
100V |
IAM4820C12 |
100µF |
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330µF |
100V |
Weight |
1.7 ounces (50 grams) |
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Warranty |
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2 years |
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Set your site on VICOR at www.vicorpower.com
Typical Inrush Limiting and Transient Immunity Characteristics
Inrush Limiting |
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Transient Immunity |
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Tek Stop: Single Seq. 5.00MS/s |
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Tek Run: 10.0MS/s |
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[ T |
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Ch1 Zoom: |
1.0X Vert 0.005X Horz |
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INPUT CURRENT |
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@ 200.0V |
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INPUT TRANSIENT |
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INPUT VOLTAGE |
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Ch1=Input |
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Ch2=Output |
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Ch1=Vdc in |
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4 |
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Ch2=Vdc out |
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Ch3=Idc in |
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@0.2A/mV |
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OUTPUT VOLTAGE |
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OUTPUT VOLTAGE |
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48V offset |
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2 |
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2 |
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Ch1 25.0V Ch2 25.0V M5.00 s Ch4 |
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Ch1 10.0 V Ch2 |
10.0 V |
M2.00ms Ch1 |
31.8 V |
8.2A |
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Ch4 |
10.0mVΩ |
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Figure 1—Inrush current with 330µF |
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Figure 2— Output response to a transient on the |
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on the IAM4820C12. |
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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 |
4 |
– IN |
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– OUT |
5 |
7 |
– IN |
– OUT |
1 |
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3 |
NC |
FM48 |
GND |
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6 |
NC |
IAM48IA 2 NC |
2 |
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6 |
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2 |
NC |
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Off/On |
3 |
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+IN |
1 |
+IN |
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+ OUT |
7 |
5 |
+ IN |
+OUT |
4 |
Figure 3
–IN –OUT
PR |
2nd Generation |
–S |
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48Vdc Input |
SC |
PC |
DC-DC Converters |
+S |
+IN |
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+OUT |
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