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Features
•EMI filtering-Class B
•Transient protection
•Low profile mounting options
•10 and 20 Ampere versions
•UL, CSA, EN compliance
•Mini-size package
•Inrush current limiting
Product Highlights
The FIAM is a DC front-end module providing transient protection, inrush current limiting and Class B EMI filtering in a Minisize package. The FIAM enables designers using Vicor 2nd Generation, 48Vin DC-DC converters to meet the transient immunity and EMI requirements of Bellcore, FCC, ETSI and European Norms while protecting system hardware from inrush current. The FIAM accepts an input voltage of 36-76Vdc, is available in 10 or 20A versions and provides reverse polarity protection and remote on/off.
FIAM is housed in an industry standard "half brick" module measuring 2.28" x 2.2" x 0.5" and depending upon model selected, may be mounted on-board or in-board for height critical applications.
Compatible Products
•2nd Generation 48V Input DC-DC converters
Part Number Format
FIAM |
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1 |
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C |
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1 |
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1 |
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Product |
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Pin Style |
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1 = Short |
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2 = Long |
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Type |
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Product Grade |
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Baseplate |
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1 = 10A |
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C = –20 to +100 |
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1 = Slotted |
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2 = 20A |
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T = –40 to +100 |
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2 = Threaded |
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3 = Thru-hole |
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Thermal Resistance |
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Parameter |
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Typ |
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Baseplate to sink; flat, greased surface |
0.16°C/Watt |
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Baseplate to sink; thermal pad (P/N 20264) |
0.1°C/Watt |
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Baseplate to ambient |
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7.9°C/Watt |
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Baseplate to sink; 1000 LFM |
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2.2°C/Watt |
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PRELIMINARY
Data Sheet
FIAMTM
Filter Input Attenuator Module
Shown actual size: 2.28 x 2.2 x 0.5 in 57,9 x 55,9 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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Specifications
(typical at TBP = 25C, nominal line, 75% load, unless otherwise specified)
Parameter |
Min |
Typ |
Max |
Remarks |
Input voltage |
36Vdc |
48Vdc |
76Vdc |
Continuous |
Output current |
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FIAM1xxx |
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10A |
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FIAM2xxx |
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20A |
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Inrush limiting |
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.014A/µF |
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Transient immunity |
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1µsec duration |
Bellcore TR-NWT-000499 |
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200V |
5.0µsec rise time, 50µsec duration surge |
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ETS 300 386-1 Class 2 |
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200V |
1-100nsec burst |
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250V |
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EMI |
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When used with Vicor 2nd Generation |
Bellcore GR-001089-Core |
Issue 2 |
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48Vin DC-DC converters |
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EN 55022 |
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Level B |
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FCC Part 15 |
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Level B |
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Dielectric withstand |
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1,500Vrms |
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Input/Output to Base |
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2,121Vdc |
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Input/Output to Base |
Efficiency |
96 |
97.5 |
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Internal voltage drop is 1.4 max. |
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@ 20A, 100°C baseplate |
Reverse polarity protection |
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No damage to module, |
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external fuse required |
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 |
External capacitance |
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See illustration on page 2. |
FIAM1xxx |
10µF |
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150µF |
100V |
FIAM2xxx |
100µF |
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330µF |
100V |
Safety approvals |
UL 1950, CSA 22.2-950, EN 60950 |
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Weight |
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3.1 (88) |
4 (113) |
ounces (grams) |
Warranty |
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2 |
years |
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Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 |
FIAM, Filter Input Attenuator Module |
Rev. 1.1 |
Page 1 of 4 |
Set your site on VICOR at www.vicorpower.com
PRELIMINARY
Conducted Noise
Figure 1—FIAM and Model V48A12C500A DC-DC converter. Figure 2—FIAM and Model V48B24C250A DC-DC converter.
Inrush Limiting Transient Immunity
Tek Stop: Single Seq. 5.00MS/s
[ T |
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Ch1 Zoom: |
1.0X Vert 0.005X Horz |
INPUT CURRENT
INPUT VOLTAGE
Ch1=Vdc in
4 Ch2=Vdc out
Ch3=Idc in
@0.2A/mV
OUTPUT VOLTAGE
2
Ch1 |
10.0 V |
Ch2 10.0 V |
M2.00ms Ch1 |
31.8 V |
Ch4 10.0mVΩ
Figure 3—Inrush Limiting: Inrush current with 330µF external capacitance.
Tek Run: 10.0MS/s
@ 200.0V
INPUT TRANSIENT
Ch1=Input
Ch2=Output
OUTPUT VOLTAGE |
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48V offset |
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Ch1 25.0V Ch2 25.0V M5.00 s Ch4 |
8.2A |
Figure 4—Transient Immunity: FIAM output response to an input transient.
Transient and Surge Protection
Note: The FIAM is shown in the on state. To disable, open the connection between ON/OFF and –Out.
–IN |
–IN |
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–OUT |
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EMI |
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ON |
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OFF |
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TRANSORB P/N |
GND |
FIAM |
NC |
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20461-120 |
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NC |
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NC |
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+IN |
+IN |
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+OUT |
–IN |
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–OUT |
PR |
2nd Generation |
–S |
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48Vdc Input |
SC |
PC |
DC-DC Converters |
+S |
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+IN |
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+OUT |
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 |
FIAM, Filter Input Attenuator Module |
Rev. 1.1 |
Page 2 of 4 |
Set your site on VICOR at www.vicorpower.com