VWS300 DC-DC Series Data Sheet
Single-Output, 300 Watts
Features
• 300W standard full-brick
• Industry-standard footprint
• Open-frame packaging
• 100°C baseplate operation
• Planar magnetics
• Superior transient response
• 1500V isolation
• VWB booster modules available
Description
VWS DC/DC converters are industry-standard full-bricks. Featuring a fixed frequency design, the VWS offers
excellent transient response and predictable EMI performance. The VWS can be combined with VWB booster modules
to provide increased power. VWS converters use 100% surface-mount construction, along with planar magnetics, and
are fully compatible with production board washing processes.
Technical Specifications
Input
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Reflected Ripple Current
Undervoltage Lockout - Turn on / Turn off
18 - 36 VDC
36 - 72 VDC
50 mA Pk-Pk
17-15 VDC /35-32 VDC
Output
Setpoint Accuracy
Line Regulation V
in
min. - V
in
max., I
out
rated
Load Regulation I
out
min. - I
out
max., V
in
nom.
Remote Sense Headroom
Minimum Output Current
Dynamic Regulation, Loadstep
Pk Deviation
Settling Time
Voltage Trim Range
Current Limit Threshold Range, % of I
out
Rated
OVP Trip Range
OVP Type
Short Circuit/Overcurrent Protection
±1%
0.2% V
out
0.2% V
out
0.5 VDC
10 % I
out
Rated
25% I
out
4% V
out
500 ms
±10%
110 - 140%
120 - 140% V
out
Nom.
Self Recovering
Shutdown/Hiccup
Efficiency vs. Load (48V Input)
90
EFFICIENCY%
85
EFF. (36v)
EFF. (48v)
EFF. (75v)
80
75
10 20
General
Turn-On Time
Remote Shutdown
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Input - Case
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Thermal Shutdown Range
Vibration, 3 Axes, 5 Min Each
MTBF
†
(Bellcore TR-NWT-000332)
Safety
Weight (Approx.)
REV. APR 16, 2004
10 ms
Positive Logic
V
in
Negative
500 kHz
1500 VDC
1050 VDC
500 VDC
0.03 %/°C
-40 To +100°C
-40 To +125°C
105 - 115°C
5 g, 10 - 55 Hz
Consult Factory
UL, cUL, TUV
6.0 oz
30 40 50
60 70 80
90 100
LOAD %
Notes
† MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load, unless
otherwise stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model. Please consult
factory for specific model information.
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OPTIONS
This page is offered as a reference. Consult factory for actual availability of options. When ordering
equipment options, use the following suffix information. Select preferred option(s) and add the suffix to the
model number. Ordering option examples are located below the options table.
OPTION
Negative Logic
Lucent-Compatible Trim
Trim
Enable
Trim and Enable
SUFFIX
N
T
1
2
3
APPLICABLE SERIES
HAS, HBD, HBS, HES, HLS, HLD, LES,
QBS, QES, QLS, TES, TQD
HAS, HBD, HBS, HES, HLS, QBS, QES,
QLS
IAS, LES
IAD, IAS, LES, SMS
IAS, LES
REMARKS
TTL "Low" Turns Module ON
TTL "High" Turns Module OFF
Pin Length and Heatsink Options
0.110" (2.8mm) Pin Length
0.150" (3.8mm) Pin Length
0.24" (6.1mm) Horizontal Heatsink
0.24" (6.1mm) Vertical Heatsink
0.45" (11.4mm) Horizontal Heatsink
0.45" (11.4mm) Vertical Heatsink
0.95" (24.1mm) Horizontal Heatsink
0.95" (24.1mm) Vertical Heatsink
8
9
1H
1V
2H
2V
3H
3V
All Leaded Models
All Leaded Models
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
All 1/4-Bricks, 1/2-Bricks, 3/4-Bricks, Full-Bricks
(Except HLS, HLD, QLS, TLD, and TKD Packages)
Standard Pin Length is 0.180" (4.6mm)
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Example Options:
HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent-compatible trim, and 0.95” vertical heatsink.
LES015YJ-3N = LES015YJ with optional trim and enable, negative logic.
QBS066ZG-AT8 = QBS066ZG-A with Lucent-compatible trim and 0.110” pin length.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not authorized for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of
Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
REV. APR 16, 2004
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