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Data Sheet
VI-IAM ™, VE-IAM ™
Input Attenuator Modules
Features
• Inputs: 24, 48 and 300 Vdc
• High surge withstand:
– Bellcore
– British Telecom BTR 2511
– IEC-60801-5
• EMI/RFI specifications:
– Bellcore TR-TSY-000513
– British Telecom BTR 2511
– FCC Level “A”
– EN55022 Level “B”
• cULus, CTÜVus
• 97% efficiency
• Logic disable
• Expansion output for arrays
• Size: 2.28" x 2.4" x 0.5"
(57,9 x 61,0 x 12,7)
• CE Marked
• RoHS Compliant (VE-IAM)
VI-IAM Specifications
(Typical at TBP = 25°C, nominal line, 75% load, unless otherwise specified)
Input Characteristics
Parameter
21
24
Input spike limit
Input surge limit
Overvoltage shut down[a]
34
Recommended fuse
Steady state input
18
Input surge limit
Overvoltage shut down [a]
Units
Notes
32
Vdc
300
Vdc
–A11– models
2500
Vdcpk
Per BTNR2571 issue 4
Ringwave 0.5 µs rise 100 kHz
100
Vdc
Figure 1
38
Vdc
100 ms, automatic recovery
20
Amps
32 V ACG-20
37
Recommended fuse
36
Vdc
300
Vdc
–AWW– models
2500
Vdcpk
Per BTNR2571 issue 4
Ringwave 0.5 µs rise 100 kHz
100
Vdc
Figure 1
42
Vdc
100 ms, automatic recovery
20
Amps
36 V ACG-20
48 Vdc modules
Input spike limit
42
Input surge limit
Overvoltage shut down [a]
62
Recommended fuse
60
Vdc
–A33– models
300
Vdc
Per BTNR2571 issue 4
2500
Vdcpk
160
Vdc
Figure 1
67
Vdc
100 ms, automatic recovery
20
Amps
Ringwave 0.5 µs rise 100 kHz
60 V 3AB-20
48 Vdc modules
Steady state input
36
Input spike limit
Input surge limit
Overvoltage shut down [a]
77
Recommended fuse
76
Vdc
–ANN– models
300
Vdc
Per BTNR2571 issue 4
2500
Vdcpk
276
Vdc
Figure 1
83
Vdc
100 ms, automatic recovery
20
Amps
Ringwave 0.5 µs rise 100 kHz
80 V 3AB-20
300 Vdc modules
Steady state input
200
Input spike limit
Input surge limit
Overvoltage shut down [a]
402
Recommended fuse
400
Vdc
–A66– models
1000
Vdc
DM, 2 Joule, IAW IEC-801-5
2000
Vdc
CM, 2 Joule, IAW IEC-801-5
800
Vdc
Figure 1
424
Vdc
100 ms, automatic recovery
5
Amps
250 V Bussman PC-Tron
All models
[a]
No load power dissipation
0.5
1.5
Watts
Inrush current
110
125
% IIN
Steady state, l IN 10 ms
The VI-IAM disables downstream converters and clamps the converter input voltage at a safe level.
Model Selection Chart
For additional information see Section 14
of the VI-200 & VI-J00 Design Guide.
24
Input spike limit
The Input Attenuator Module (VI-IAM) is
a component-level, DC input front end
filter designed to occupy minimum board
space while providing maximum protection
for today’s sophisticated electrical systems.
The VI-IAM, in combination with Vicor
24, 48 and 300 Vdc input modules,
provides a highly efficient, high density
power system with outputs from 1 to 95 Vdc
and power expandable from 25 to 800 W.
Your system will benefit from the small
size, efficiency and inherent reliability of
Vicor’s component-level converters, while
meeting the toughest demands of
Telecommunications and Industrial
power applications.
• VI-200, VE-200, VI-J00, VE-J00
(Inputs: 1, W, 3, N and 6)
• Mega Modules
(Inputs: 1, W, 3, N and 6)
Max
24 Vdc modules
Steady state input
Compatible Products
Typ
Steady state input
Product Highlights
This combination provides compliance
with the transient requirements of
Bellcore, British Telecom and IEC
standards, and meets the EMI/RFI
specifications of Bellcore, British Telecom
and FCC Part 15, Subpart B and EN55022.
Min
24 Vdc modules
Model Number
Input Range
Compatible DC-DC Converter
Converter
VI-A11-CU/VE-A11-CU
Nominal Input Voltage
24 Vdc
21 – 32 Vdc
VI-21x-Cx and VI-J1x-Cx
C–grade
VI-AWW-CU/VE-AWW-CU
24 Vdc
18 – 36 Vdc
VI-2Wx-Cx and VI-JWx-Cx
C–grade
VI-A33-CQ/VE-A33-CQ
48 Vdc
42 – 60 Vdc
VI-23x-Cx and VI-J3x-Cx
C–grade
VI-ANN-CQ/VE-ANN-CQ
48 Vdc
36 – 76 Vdc
VI-2Nx-Cx and VI-JNx-Cx
C–grade
VI-A66-CQ/VE-A66-CQ
300 Vdc
200 – 400 Vdc
VI-26x-Cx and VI-J6x-Cx
C–grade
Note: For alternative product grades change the “C” in the part number to “E”, “I”, or “M”.
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
VI-IAM Input Attenuator Modules
Set your site on VICOR at www.vicorpower.com
Rev. 1.2
Page 1 of 5
SPECIFICATIONS
(typical at TBP = 25°C, nominal line and 75% load, unless otherwise specified)
OUTPUT CHARACTERISTICS
Parameter
Clamp voltage
Min
Typ
36.0
40.5
62.0
80.0
400
24 Vdc input
48 Vdc input
300 Vdc input
Output power
24 V models
48 V models
300 V models
Internal voltage drop
24 Vdc
48 Vdc
300 Vdc
Overload protection
24 Vdc input –AWW–
–A11–
48 Vdc input –ANN–
–A33–
300 Vdc input –A66–
0.6
0.6
1.7
Max
Units
44.0
50.0
71
90.0
435
Vdc
Vdc
Vdc
Vdc
Vdc
250
510
510
Watts
Watts
Watts
0.85
0.95
3.5
Vdc
Vdc
Vdc
20
15
20
15
4
ISOLATION CHARACTERISTICS
Parameter
Input to base
Output to base
Min
Parameter
Min
THERMAL CHARACTERISTICS
Efficiency
Baseplate to sink
Test Conditions/Notes
–A11– models
–AWW– models
–A33– models
–ANN– models
–A66– models
Output of IAM
Output of IAM
Output of IAM
Amps
Amps
Amps
Amps
Amps
Foldback threshold; auto recovery
with latched shut down after 2 ms
Typ
1,500
1,500
Max
Units
Vrms
Vrms
Test Conditions
1 minute
1 minute
Typ
Max
Units
Test Conditions
97
%
0.14
°C/Watt
Operating temperature,
baseplate
100
°C
See product grade specifications
Storage temperature
125
°C
See product grade specifications
Max
Units
MECHANICAL SPECIFICATIONS
Parameter
Min
Weight
PRODUCT GRADE SPECIFICATIONS
Parameter
Storage Temp. (Baseplate)
Operating Temp. (Baseplate)
Typ
3.0 (85)
E
–20°C to +105°C
–10°C to +100°C
EMI CHARACTERISTICS
EMI/ RFI (conducted emissions)
TRANSIENT PROTECTION
Test Conditions
ounces (grams)
C
–40°C to +105°C
–25°C to +100°C
I
–55°C to +105°C
–40°C to +100°C
M
–65°C to +105°C
–55°C to +100°C
Meets Bellcore TR-TSY-000513, Issue 2, Rev. 1 (24 and 48V Input);
British Telecom BTR 2511, Issue 2 (24 and 48V Input);
FCC Part 15, Class A, EN55022 Class B
Meets Bellcore TA-TSY-001003, Issue 1, 9/89
British Telecom BTR 2511, IEC61000-4-5 Level 2 (VI-A66 only)
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
VI-IAM Input Attenuator Modules
Set your site on VICOR at www.vicorpower.com
Rev. 1.2
Page 2 of 5
Standard
24 V Inputs
48 V Input
Wide Range
R.E.
100V
100V
R.E.
160V
I.S.W.
Full Load
S.D.
100V
36V
32V
Normal Operating Area
21V
0.1
1
10ms
42V
0.1
48 V Wide Range Input
276V
125V
100V
S.D.
76V
100
1000
+IN
C2
Vref 1
EMI Filter
R.E.
D1
OV
U2
Vref
2
OC
–IN
D2
GATE OUT
10V
PARALLEL
GATE IN
Level
Shift
Q2
U1
I.S.W.
Full Load
–OUT
–IN
S.D.
400V
Normal Operating Area
36V
0.1
10ms
800V
500V
+OUT
+IN
Q1
1
300 V Input
R.E.
I.S.W.
Full Load
S.D.
Normal Operating Area
18V
1000
100
I.S.W.
Full Load
60V
1
10ms
100
Normal Operating Area
S.D.
200V
0.1
1000
1
10ms
500ms
100
1000
500ms
I.S.W.: Input surge withstand (no disruption of performance)
R.E.: Ratings exceeded
S.D.: Shut down
Figure 1 — Safe operating area based on input voltage of IAM
(1% duty cycle max., Zs=0.5Ω, for short duration transient
capability refer to specifications.)
Figure 2 — Block diagram of Input Attenuator Module (IAM)
4700 pF
F1
+
–
+In
-In
Gate In
Parallel
Gate Out
-In
-Out
+In
F2
+Out
+In
Gate In
C1
Gate Out
VI-200/J00
-In
4700 pF
VI-IAM
Figure 3 — Typical connection diagram. For recommended fuse
(F2) see VI-200 / VI-J00 application manual.
Input Voltage
24 V
24 V “W”
48 V
48 V “N”
300 V
Input Voltage
Recommended Fuse
20 A / 32
20 A / 36
20 A / 60
20 A / 80
5 A / 250
V
V
V
V
V
(AGC-20)
(AGC-20)
(3AB-20)
(3AB-20)
Bussman PC-Tron
Table 1 — Recommended F1 fusing based on input voltage (see Fig3)
Maximum Capacitance[a]
24 Vdc (21 – 32 V)
24 Vdc (18 – 36 V)
48 Vdc (42 – 60 V)
48 Vdc (36 – 76 V)
300 Vdc (200 – 400 V)
[a]
470 µF
470 µF
220 µF
120 µF
27 µF
Capacitance should be distributed across the input of each
DC-DC converter. (C1, Figure 3)
Table 2 — Recommended distributed capacitance on input of DCDC converter(s)
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
VI-IAM Input Attenuator Modules
Set your site on VICOR at www.vicorpower.com
Rev. 1.2
Page 3 of 5
MECHANICAL DRAWING
2.28
(57,9)
0.49
(12,4)
0.30±.015
(7,6)±(0,38)
0.65
(16,5)
4
Pin #
1
2
3
4
5
6
7
8
9
9
3
2.10
(53,4)
Standard
0.080 Dia (2) places
Solder plate
over copper alloy
1.30
(33,0)
8
MI-IAM
VI-IAM
7
2
6
1
5
1.40
1.00 (35,6)
0.70 (25,4)
0.40 (17,8)
(10,2)
0.35± 0.015
(8,9)±(0,38)
0.15
(3,8)
Function
+In
+In
–In
–In
+Out
Gate In
Parallel
Gate Out
–Out
Standard
0.040 (1,0) Dia (7) places
Solder plate
over copper alloy
FULL R
0.15
(3,8)
2.40
(61,0)
Product ID
this surface
1.90
(48,3)
0.30
(7,6) Min.
0.22
(5,6) Min.
0.50
(12,7)
1.75
(44,4) Max.
+0.030 (0,76)
-0.000 (0)
.01
0.12
(3,0)
Aluminum Base
Note: For alternate packaging options refer to the mechanical drawing page of vicorpower.com
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
VI-IAM Input Attenuator Modules
Set your site on VICOR at www.vicorpower.com
Rev. 1.2
Page 4 of 5
Warranty
Vicor products are guaranteed for two years from date of shipment against defects in material or workmanship when in normal
use and service. This warranty does not extend to products subjected to misuse, accident, or improper application or maintenance.
Vicor shall not be liable for collateral or consequential damage. This warranty is extended to the original purchaser only.
EXCEPT FOR THE FOREGOING EXPRESS WARRANTY, VICOR MAKES NO WARRANTY, EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE.
Vicor will repair or replace defective products in accordance with its own best judgement. For service under this warranty, the
buyer must contact Vicor to obtain a Return Material Authorization (RMA) number and shipping instructions. Products returned
without prior authorization will be returned to the buyer. The buyer will pay all charges incurred in returning the product to the
factory. Vicor will pay all reshipment charges if the product was defective within the terms of this warranty.
Information published by Vicor has been carefully checked and is believed to be accurate; however, no responsibility is assumed
for inaccuracies. Vicor reserves the right to make changes to any products without further notice to improve reliability, function,
or design. Vicor does not assume any liability arising out of the application or use of any product or circuit; neither does it convey
any license under its patent rights nor the rights of others. Vicor general policy does not recommend the use of its components
in life support applications wherein a failure or malfunction may directly threaten life or injury. Per Vicor Terms and Conditions
of Sale, the user of Vicor components in life support applications assumes all risks of such use and indemnifies Vicor against all
damages.
Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC
modules and accessory components, fully configurable AC-DC and DC-DC power supplies,
and complete custom power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its
use. Vicor components are not designed to be used in applications, such as life support systems, wherein a failure or
malfunction could result in injury or death. All sales are subject to Vicor’s Terms and Conditions of Sale, which are available
upon request.
Specifications are subject to change without notice.
Intellectual Property Notice
Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent
applications) relating to the products described in this data sheet. Interested parties should contact Vicor's Intellectual
Property Department.
Vicor Corporation
25 Frontage Road
Andover, MA, USA 01810
Tel: 800-735-6200
Fax: 978-475-6715
email
Customer Service: [email protected]
Technical Support: [email protected]
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
VI-IAM Input Attenuator Modules
Set your site on VICOR at www.vicorpower.com
Rev. 1.2
11/09
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