Issue Date:
2008-07-17
Page 1 of 8
Report Reference #
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2014-03-14
UL TEST REPORT AND PROCEDURE
Standard:
Certification Type:
CCN:
Product:
Model:
UL 60950-1, 2nd Edition, 2011-12-19 (Information Technology
Equipment - Safety - Part 1: General Requirements)
CSA C22.2 No. 60950-1-07, 2nd Edition, 2011-12 (Information
Technology Equipment - Safety - Part 1: General Requirements)
Component Recognition
QQGQ2, QQGQ8 (Power Supplies for Information Technology
Equipment Including Electrical Business Equipment)
DC/DC Converter
VTM Series
VTM2 Series
See Miscellaneous Enclosure for model nomenclature.
Input: 36V or 48V
Output: 48V Max
Power: 300W Max.
Rating:
See Miscellaneous Enclosure for model nomenclature.
Applicant Name and Address:
VICOR CORP
25 FRONTAGE RD
ANDOVER MA 01810-5499
UNITED STATES
This is to certify that representative samples of the products covered by this Test Report have been investigated in accordance with the
above referenced Standards. The products have been found to comply with the requirements covering the category and the products are
judged to be eligible for Follow-Up Service under the indicated Test Procedure. The manufacturer is authorized to use the UL Mark on
such products which comply with this Test Report and any other applicable requirements of UL LLC ('UL') in accordance with the FollowUp Service Agreement. Only those products which properly bear the UL Mark are considered as being covered by UL's Follow-Up
Service under the indicated Test Procedure.
The applicant is authorized to reproduce the referenced Test Report provided it is reproduced in its entirety.
UL authorizes the applicant to reproduce the latest pages of the referenced Test Report consisting of the first page of the Specific
Technical Criteria through to the end of the Conditions of Acceptability.
Any information and documentation involving UL Mark services are provided on behalf of UL LLC (UL) or any authorized licensee of UL.
Prepared by:
Gerard Soprych
Reviewed by: Daniel Pirozzi
Copyright © 2014
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2008-07-17
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Report Reference #
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2014-03-14
Supporting Documentation
The following documents located at the beginning of this Procedure supplement the requirements of this Test
Report:
A. Authorization - The Authorization page may include additional Factory Identification Code markings.
B. Generic Inspection Instructions i. Part AC details important information which may be applicable to products covered by this Procedure.
Products described in this Test Report must comply with any applicable items listed unless otherwise
stated in the body of this Test Report.
ii. Part AE details any requirements which may be applicable to all products covered by this Procedure.
Products described in this Test Report must comply with any applicable items listed unless otherwise
stated in the body of each Test Report.
iii. Part AF details the requirements for the UL Certification Mark which is not controlled by the technical
standard used to investigate these products. Products are permitted to bear only the Certification
Mark(s) corresponding to the countries for which it is certified, as indicated in each Test Report.
Product Description
The full size VI Chip VTM is an isolating DC-DC back end voltage Transformation module that is designed to
be used with a VI Chip PRM to make a complete regulated DC-DC converter but may be used as a
standalone device. the VTM DC-DC converters are designed for building-in and the input is intended to be
derived from the output of a VI chip PRM, a TNV-2, SELV, or other non-hazardous secondary circuit. The
VTM is a current rated device. The VTM output is rated for a max current as opposed to a max power. The
max current rating is valid for the entire output voltage range for each model.
Model Differences
See Miscellaneous Enclosure for model nomenclature.
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2008-07-17
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2014-03-14
Technical Considerations
Equipment mobility : for building-in
Connection to the mains : N/A
Operating condition : continuous
Access location : building-in
Over voltage category (OVC) : OVC II
Mains supply tolerance (%) or absolute mains supply values : No direct connection
Tested for IT power systems : No
IT testing, phase-phase voltage (V) : -
Class of equipment : Class II (double insulated)
Considered current rating of protective device as part of the building installation (A) : -
Pollution degree (PD) : PD 2
IP protection class : IP X0
Altitude of operation (m) : 2000
Altitude of test laboratory (m) : 150
Mass of equipment (kg) : 0.0125
The product was submitted and evaluated for use at the maximum ambient temperature (Tma)
permitted by the manufacturer’s specification of: semiconductor junction temperature of the VI Chip
not exceeding 125°C
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2008-07-17
Page 4 of 8
Report Reference #
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2014-03-14
Engineering Conditions of Acceptability
For use only in or with complete equipment where the acceptability of the combination is determined by UL
LLC. When installed in an end-product, consideration must be given to the following:
The input to the VTM is intended to be supplied from the output of a VI chip PRM, a TNV-2 circuit, or
other non-hazardous secondary circuit
The VTM provides 2250 Vdc of isolation from input to output.
The output of the VTM is considered SELV.
A standalone VTM used without a PRM should be protected by Littelfuse Nano²Fuse rated 10A or
less.
The following Production-Line tests are conducted for this product: Electric Strength
The end-product Electric Strength Test is to be based upon a maximum working voltage of: PrimarySELV: 57.6 Vrms, 88 Vpk
The following secondary output circuits are SELV: All
The following secondary output circuits are at non-hazardous energy levels: All
The power supply terminals and/or connectors are: Not investigated for field wiring
The investigated Pollution Degree is: 2
The following end-product enclosures are required: Mechanical , Fire , Electrical
Max Temperature: Keep the maximum semiconductor junction temperature of the VI Chip at 125°C
or less. There are two three methods to demonstrate compliance. Method 1: Keep T casemax <
100°C under all conditions where T casemax is the maximum case temp of the VI chip. Method 2:
Keep T casemax < 125°C - (P dissmax X 1.5) under all conditions where P dissmax = P inputmax - P
outputmax. P dissmax is the amount of power in Watts dissipated within the device. The thermal
resistance of the full size VI Chip from the internal semiconductor junction to the case is 1.5°C/Watts.
Method Three: Maintain the internal semiconductor junction temperature at Tj = 125°C or less. This
can be achieved by measuring the dc voltage at the TM (temperature monitor) lead and converting
the voltage to temperature The TM has a nominal +27C set point of 3.0 Vdc and a nominal gain of
10mV / °C. Example; TM = 3.4Vdc, Tj = (27 + 40) 67°C
The VTM is designed to be used with the VI Chip PRM. The PRM/VTM combination should be
protected by Littelfuse Nano²Fuse rated 15A or less when the PRM is rated 400W or less.
The VTM is designed to be used with the VI Chip PRM. The PRM/VTM combination should be
protected by Littelfuse Nano²Fuse rated 10A or less in front of when the PRM is rated 320W or less.
Issue Date:
2008-07-17
Page 5 of 8
Report Reference #
2014-03-14
VI CHIP VTM Model Number:
Vbbbcdddefffx
Sample model number: V048F480T006A
V = Constant
VTM Family (Voltage Transformation Module)
V
Standard VTM
bbb = 048
Input Voltage
036
048
Nominal (range)
36 Vdc (26-50)
48 Vdc (26-55)
c= F
Package
Size
Full VIC
On Board
J-Lead
F
In Board
BGA
K
Through
Hole
T
ddd = 480
Output Voltage Designator (Vdc)
010
1.0
072
7.2
011
1.1
080
8.0
015
1.5
090
9.0
020
2.0
096
9.6
022
2.2
120
12.0
024
2.4
160
16.0
030
3.0
180
18.0
033
3.3
240
24.0
040
4.0
320
32.0
045
4.5
360
36.0
060
6.0
480
48.0
e= T
Product Grade
T
M
-40 to 125° C
-55 to 125° C
fff = 006
Output Current Designator (Amps)
003
3 A
013
13 A
005
5 A
015
15 A
006
6 A
017
17 A
007
7 A
020
20 A
009
9 A
025
25 A
010
10 A
027
27 A
012
12 A
030
30 A
x= A
Revision (optional non-safety related)
x
Any alphanumeric character
040
050
055
060
070
080
100
40 A
50 A
55 A
60 A
70 A
80 A
100 A
E135493-A4-UL
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2008-07-17
Page 6 of 8
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Customer Special Models:
Customer Special
Equivalent Standard
Model Numbers
Model Numbers
MV036F011M100x
V036F011M100
MV036F015M080x
V036F015M080
MV036F022M055x
V036F022M055
MV036F030M040x
V036F030M040
MV036F045M027x
V036F045M027
MV036F060M020x
V036F060M020
MV036F072M017x
V036F072M017
MV036F090M013x
V036F090M013
MV036F120M010x
V036F120M010
MV036F180M007x
V036F180M007
MV036F240M005x
V036F240M005
MV036F360M003x
V036F360M003
VIZ0033, VIZ0033x
V048F120T025
VIZ0034, VIZ0034x
V048F040T050
VIZ0039, VIZ0039x
V048F020T080
VIZ0040, VIZ0040x
V048F030T070
VIZ0041, VIZ0041x
V048F040T050
VIZ0042, VIZ0042x
V048F120T025
VIZ0052, VIZ0052x
V048F120T025
VIZ0068, VIZ0068x
V048F080T030
VIZ0069, VIZ0069x
V048F060T040
VIZ0077, VIZ0077x
V048F020T080
VIZ0078, VIZ0078x
V048F096T025
F = J Lead, F may be replace by T for thru-hole
x = revision, optional, any letter A through Z, non-safety related
E135493-A4-UL
Issue Date:
2008-07-17
Page 7 of 8
Report Reference #
E135493-A4-UL
2014-03-14
VI CHIP VTM2 Model Number:
VTMbbbcdddefffxzz
Example: VTM48EF240T009A00
VTM = Constant
VTM Family (Voltage Transformation Module)
VTM Standard version
MVTM Mil-COTS version
bbb = 48E
Input
Nominal (range)
Voltage
36B
36 Vdc (26-50)
48E
48 Vdc (26-55)
48F
48 Vdc (26-48)
48G
48H
48 Vdc (26-53)
48 Vdc (32-55)
c= F
Package Size and Lead Designator
F
Full VI Chip J-Lead
T
Full VI Chip Though-hole
ddd = 240
Output Voltage Designator (can be any three digits from 010 to 480)
Vout = (designator / 10), non-inclusive list of examples below
010
1.0 Vdc
030
3.0 Vdc
096
011
1.1 Vdc
033
3.3 Vdc
120
012
1.2 Vdc
040
4.0 Vdc
160
015
1.5 Vdc
045
4.5 Vdc
240
020
2.0 Vdc
072
7.2 Vdc
320
022
2.2 Vdc
080
8.0 Vdc
360
024
2.4 Vdc
090
9.0 Vdc
480
9.6 Vdc
12.0 Vdc
16.0 Vdc
24.0 Vdc
32.0 Vdc
36.0 Vdc
48.0 Vdc
e= T
Product Grade
T
-40 to 125C
M
-55 to 125C
fff = 009
Output Current Designator (can be any three digits from 001 to 100)
non-inclusive list of examples below
003
3 A
010
10 A
020
20 A
050
50 A
005
006
007
009
5
6
7
9
012
013
015
017
12
13
15
17
025
027
030
040
25
27
30
40
055
060
070
080
55
60
70
80
A
A
A
A
A
A
A
A
x= A
Revision (non-safety related)
x
Any alphanumeric character
A
A
A
A
A
A
A
A
100
100
A
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2008-07-17
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zz = 00
Customer reference (non-safety related)
Any alphanumeric character or
zz
Blank
VTM2 Customer Special Models:
Customer Special
Model Numbers
VIZ0080, VIZ0080x
VIZ0084, VIZ0084x
VIZ0085, VIZ0085x
VIZ0086, VIZ0086x
VIZ0087, VIZ0087x
x = revision, optional, any letter A
Equivalent Standard
Model Numbers
VTM48EF020T070A00
VTM48EF060T040A00
VTM48EF080T030A00
VTM48EF120T025A01
VTM48EF040T050B00
through Z, non-safety related
E135493-A4-UL