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ELV Series
50~100 Watts
Single Output
Half-Brick DC/DC Converter
Rev. G
FEATURES
APPLICATIONS
● Soft Start
● For use in 12V and 24V Battery Applications
● 100% Burn In
● For use in Intermediate and Distributed
● High Reliability
Bus Architectures (IBA)
● Remote ON/OFF
● Telecommunications Equipment
● Up to 87% Efficient
● Network (LANs/WANs) Equipment
● Cost Efficient Solution
● Next Generation Low Voltage, High
● Fast Transient Response
Current Microprocessors and ICs
● Fixed Switching Frequency
● Optional Heatsink Available
● Economy Version of the LV Series
● Short Circuit and Over Current Protected
● Remote Sense Compensation to 10% Vout
● Optional Encapsulation for Added Ruggedness
DESCRIPTION
The ELV series is an economy version of our LV series. The ELV series consists of high density, low input voltage, isolated
converters with a wide input voltage range. Low input voltage converters are uncommon in the industry and the ELV series
offers the flexibility of operation with both 12V and 24V busses. This state-of-the-art converter’s features include fast transient
response, short circuit protection, over current protection, soft start, and many other features that are required for today’s
demanding applications. This series is available in both encapsulated and open frame designs.
SPECIFICATIONS: ELV Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
GENERAL SPECIFICATIONS
Input Voltage Range ...................................................10 - 36VDC
Efficiency ........................................................................Up to 87%
Remote ON/OFF ........................... Logic Enable referenced to -Vin,
No suffix........................................... Open/High=ON, Low=OFF
“R” suffix .......................................... Open/High=OFF, Low=ON
Switching Frequency ...................................................300KHz typ.
Input Reflected Ripple current..................................... 225mA typ.
Input Surge Voltage .................................. 50VDC max for 100ms
OUTPUT SPECIFICATIONS
Output Voltage ................................................................ see table
Isolation Voltage
Input to Output ...........................................................................1500VDC
Input to Case ...............................................................................500VDC
Output to Case.............................................................................500VDC
Isolation Resistance....................................................... 10MΩ min.
ENVIRONMENTAL SPECIFICATIONS
Voltage Accuracy ................................................................... ±1%
Operating Temperature (case).............................. -40°C ~ +100°C
Output Adjustability .............................................................. ±10%
Storage Temperature............................................. -50°C ~ +125°C
Output Current ................................................................ see table
Humidity............................................................................... to 95%
Output Power .................................................................. see table
MTBF .................................................................... 2,563,116 hours
Line Regulation (LL to HL at FL) ......................................... ±0.2%
PHYSICAL SPECIFICATIONS
Load Regulation (20% to 100% load).................................. ±0.2%
Ripple/Noise (20 MHz BW) ................................................... 1.5%
Remote Sense Compensation ............................................... 10%
Transient Response (50% load step) ..................................250ms
Temperature Coefficient............................................... ±0.2% / °C
Weight .......................................................................... 4oz (113g)
Dimensions
Encapsulated .............2.28 x 2.40 x 0.50 inches [61.0 x 57.9 x 12.7 mm]
Open Frame...............2.18 x 2.30 x 0.53 inches [55.4 x 58.4 x 13.5 mm]
Case Material.......................................................... aluminum alloy
PROTECTION SPECIFICATIONS
Current Limit .................................................................110~140%
Short Circuit Protection ............................................... Continuous
06/09/2010
Due to advances in technology, specifications subject to change without notice
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 1 of 4
ELV Series
50~100 Watts
Single Output
Half-Brick DC/DC Converter
Rev. G
MODEL SELECTION TABLE
Model Number for
Threaded Inserts
Model Number for
Thru-Hole Inserts
Input Voltage Range
Output Voltage
Output Current
Output Power
ELV12S15-50
ELV12S15-50TH
15 VDC
3.33A
50W
ELV12S18-50
ELV12S18-50TH
18 VDC
2.78A
50W
ELV12S3.3-75
ELV12S3.3-75TH
3.3 VDC
21.4A
75W
ELV12S5-100
ELV12S5-100TH
5 VDC
20.0A
100W
ELV12S8-100
ELV12S8-100TH
8 VDC
12.5A
100W
ELV12S12-100
ELV12S12-100TH
12 VDC
8.3A
100W
ELV12S15-100
ELV12S15-100TH
15 VDC
6.67A
100W
ELV12S18-100
ELV12S18-100TH
18 VDC
5.56A
100W
ELV12S20-100
ELV12S20-100TH
20 VDC
5.0A
100W
12 / 24 VDC
(10 - 36 VDC)
NOTES
1. This series is available in both encapsulated and open frame designs. For open frame design add the suffix “O” to the part
number. (Ex: ELV12S15-100O)
2. Pin to pin tolerance: ±0 .01" [± 0.3mm], pin diameter tolerance: ± 0.005" [± 0.13mm].
3. Case material: 0.040" [1.02mm] thick, aluminum alloy 3003-0, per: QQA 250/2.
4. Unit comes with either 3M x 0.5 threaded thru inserts or for 0.125 thru-hole add "TH" suffix to model part number.
(Ex: ELV12S12-100TH)
5. Optional heatsink available. Please call factory for ordering details.
6. Active high enable is standard; for active low enable add the suffix “R” to the part number (Ex: ELV12S15-100R).
ELV12S12-100 Efficiency vs Output Current
89%
87%
85%
Efficiency (%)
83%
81%
79%
77%
75%
Vin=10V
Vin=18V
Vin=27V
Vin=36V
73%
71%
69%
67%
65%
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
Io (A)
06/09/2010
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 2 of 4
ELV Series
50~100 Watts
Single Output
Half-Brick DC/DC Converter
Rev. G
MECHANICAL DRAWING (Standard)
Unit: inches [mm]
LABEL
DATE CODE
WALL INDUSTRIES
R
XXXX
3M x 0.5 THREADED
THRU INSERTS 4X
MAX RECIVING TORQUE:
4-LBf/IN[0.45-N.m]
DC/DC CONVERTER
MODEL NAME
EXETER, NH 03833
+0.5
2.28+.02
-.03 57.9 -0.8
.50 [12.7]
TO STANDOFFS ONLY
2.000 [50.80]
NO PIN
+0.5
2.40+.02
-.03 61.0 -0.8
SERIAL NO:
XXXX
6
1
1.400 [35.56]
7
2
1.000 [25.40]
8
3
.700 [17.78]
9
4
.400 [10.16]
10
5
.000 [0.00]
.30 [7.6]
.50 [12.7]
.19+.02
-.03
1.900 [48.26]
.20 MIN [5.1 MIN]
SEE NOTE-3
PIN LENGTH FROM
STANDOFFS ONLY
4.8+0.5
-0.6
.000 [0.00]
LEXAN INSULATOR 2X
UNLESS OTHERWISE SPECIFIED
ALL DIMENSIONS ARE IN INCHES
[XX] ARE IN MILLIMETERS
APPLIED TOLERANCES:
ANGLES = ±1°
X.XX=±0.02 [0.5] X.XXX=±0.010 [0.25]
DO NOT SCALE DRAWING
INTERPRET DIMENSION AND TOLERACE
PER ASME Y14.5M - 1994
PIN DESIGNATION
1
-OUTPUT
2
-SENSE
3
TRIM
4
+SENSE
5
+OUTPUT
6
-Vin
7
CASE GRD
8
NO PIN
9
ON/OFF
10 +Vin
PIN Ø
Ø.081
Ø.040
Ø.040
Ø.040
Ø.081
Ø.081
Ø.040
Ø.040
Ø.081
NOTES:
TO ORDER:
1. PIN TO PIN TOLERANCE ± .01 [±0.3],
PIN DIAMETER TOLERANCE: ±.005 [±0.13].
4. UNIT COMES WITH EITHER 3M x 0.5 THREADED THRU INSERTS
OR FOR Ø.125 THRU-HOLE ADD: “TH” SUFFIX TO MODEL PART
NUMBER. EXAMPLE: ELV12S15-100TH
2. CASE MATERIAL: .040 [1.02] THICK, ALUMINUM ALLOY 3003-0,
PER: QQA 250/2.
5. CONSULT FACTORY FOR OPTIONAL HEAT SINK.
3. UNLESS OTHERWISE SPECIFIED.
06/09/2010
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 3 of 4
ELV Series
50~100 Watts
Single Output
Half-Brick DC/DC Converter
Rev. G
MECHANICAL DRAWING (Thru-Hole Version)
Unit: inches [mm]
LABEL
DATE CODE
WALL INDUSTRIES
R
XXXX
Ø.125±.005 [3.18±0.13] THRU 4X
SERIAL NO:
DC/DC CONVERTER
MODEL NAME
EXETER, NH 03833
XXXX
+0.5
2.28+.02
-.03 57.9 -0.8
.50 [12.7]
TO STANDOFFS ONLY
2.000 [50.80]
+0.5
2.40+.02
-.03 61.0 -0.8
NO PIN
6
1
1.400 [35.56]
7
2
1.000 [25.40]
8
3
.700 [17.78]
9
4
.400 [10.16]
10
5
.000 [0.00]
.30 [7.6]
.50 [12.7]
.19+.02
-.03
1.900 [48.26]
4.8+0.5
-0.6
.000 [0.00]
LEXAN INSULATOR 2X
PIN DESIGNATION
1
-OUTPUT
2
-SENSE
3
TRIM
4
+SENSE
5
+OUTPUT
6
-Vin
7
CASE GRD
8
NO PIN
9
ON/OFF
10 +Vin
UNLESS OTHERWISE SPECIFIED
ALL DIMENSIONS ARE IN INCHES
[XX] ARE IN MILLIMETERS
APPLIED TOLERANCES:
ANGLES = ±1°
X.XX=±0.02 [0.5] X.XXX=±0.010 [0.25]
DO NOT SCALE DRAWING
INTERPRET DIMENSION AND TOLERACE
PER ASME Y14.5M - 1994
.20 MIN [5.1 MIN]
SEE NOTE-3
PIN LENGTH FROM
STANDOFFS ONLY
PIN Ø
Ø.081
Ø.040
Ø.040
Ø.040
Ø.081
Ø.081
Ø.040
Ø.040
Ø.081
NOTES:
TO ORDER:
1. PIN TO PIN TOLERANCE ± .01 [±0.3],
PIN DIAMETER TOLERANCE: ±.005 [±0.13].
4. UNIT COMES WITH EITHER 3M x 0.5 THREADED THRU INSERTS
OR FOR Ø.125 THRU-HOLE ADD: “TH” SUFFIX TO MODEL PART
NUMBER. EXAMPLE: ELV12S15-100TH
2. CASE MATERIAL: .040 [1.02] THICK, ALUMINUM ALLOY 3003-0,
PER: QQA 250/2.
5. CONSULT FACTORY FOR OPTIONAL HEAT SINK.
3. UNLESS OTHERWISE SPECIFIED.
06/09/2010
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 4 of 4