VICOR IAM4820C2N, IAM4820C2S, IAM4820C31, IAM4820C32, IAM4820C3S Datasheet

Parameter Min Typ Max Remarks

Input voltage 36Vdc 48Vdc 76Vdc Continuous
Inrush limiting 14mA/µF 6A with 330µF capacitor (See Fig 1)
Safety approvals UL 1950, CSA 22.2-950, EN 60950
Transient immunity

Telcordia-GR-499-CORE Section 132 200V 1µsec duration
ETS 300 386-1 Class 2 200V 5.0µsec rise time, 50µsec duration surge

250V 1-100 nsec burst

When used with Vicor

FM-48 filter module
Dielectric withstand 1,500Vrms Input/Output to base
Output current Delivered current to any

IAM4810C12 10A combination of Vicor’s 2nd Generation
IAM4820C12 20A 48Vin DC-DC converters

Efficiency

97%

Internal voltage drop is 1.1V max.

@ 20A, 100°C baseplate
ON/OFF control

ENABLE(ON) 0.0Vdc 1.0Vdc Referenced to –Vout.
DISABLE(OFF) 3.5Vdc 5.0Vdc 100KΩ internal pull-up resistor

Reverse polarity protection

No damage to module, external

fuse required
External capacitance See Fig 3

IAM4810C12 10µF 150µF 100V

IAM4820C12 100µF 330µF 100V
Weight 1.7 ounces (50 grams)
Warranty 2 years

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

45

Shown actual size:

2.28 x 1.45 x 0.5 in

57,9 x 36,8 x 12,7 mm

IAM48 Specifications

(typical at TBP= 25°C, nominal line, unless otherwise specified)

Data Sheet

IAM48

TM

Input Power
Conditioning Module

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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
Operating temperature C–Grade -20 to +100 °C Baseplate
Operating temperature T–Grade -40 to +100 °C Baseplate

Absolute Maximum Rating

IAM 48 10 C 1 1

Output

Current

10=10Amp
20=20Amp

Pin Style

1= Short Pin
2= Long Pin
S= Short ModuMate
N= Long ModuMate

Baseplate

1=Slotted
2=Threaded
3=Thru-hole

Product Grade

C=-20° to 100°C
T=-40° to 100°C

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IAM2

2nd Generation

48Vdc Input

DC-DC Converters

–IN
PR

PC

+IN

–OUT

–S

SC

+S

+OUT

FM48

–IN

+IN

IAM48

4 3 2 1

7 6 5

4 3 2 1

7 6 5

Note: The IAM48 is shown in the on state.

To disable, open the connection to pin 3.

– IN
NC
NC
+IN

– OUT

GND

+ OUT

– OUT

NC

Off/On

+OUT

– IN

NC

+ IN

Typical Transient, Surge Protection and Filtering Solution

Transient ImmunityInrush Limiting

Typical Inrush Limiting and Transient Immunity Characteristics

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.

Figure 3

Tek Stop: Single Seq. 5.00MS/s

[ T ]

Ch1 Zoom: 1.0X Vert 0.005X Horz

INPUT CURRENT

INPUT VOLTAGE

4

➞

OUTPUT VOLTAGE

2

➞

Ch1 10.0 V Ch2 10.0 V M2.00ms Ch1 31.8 V

Ch4 10.0mVΩ

Ch1=Vdc in
Ch2=Vdc out
Ch3=Idc in

@0.2A/mV

Tek Run: 10.0MS/s

INPUT TRANSIENT

➞

OUTPUT VOLTAGE

2

➞

Ch1 25.0V Ch2 25.0V M5.00µs Ch4 8.2A

➞

@ 200.0V

Ch1=Input

Ch2=Output

48V offset