(888) IPD-CONVerters

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10 20 30 40 50 60 70 80 90 100

LOAD %

EFFICIENCY

EFF. (36v)

EFF. (48v)

EFF. (75v)

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.

· 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

FEATURES

VWS SERIES - 300 WATT

TECHNICAL SPECIFICATIONS

Voltage Range

24 VDC Nominal

18 - 36 VDC

48 VDC Nominal

36 - 72 VDC

Input Reflected Ripple Current

50 mA Pk-Pk

Undervoltage Lockout - Turn on / Turn off

17-15 VDC /35-32 VDC

Input

Output

Setpoint Accuracy ±

Line Regulation V

min. - V

max., I

out

rated

0.2% V

out

Load Regulation I

out

min. - I

out

max., V

nom.

0.2% V

out

Remote Sense Headroom

0.5 VDC

Minimum Output Current

10 % I

out

Rated

Dynamic Regulation, Loadstep

25% I

out

Pk Deviation

4% V

out

Settling Time

500

µs

Voltage Trim Range

±10%

Current Limit Threshold Range, % of I

out

Rated

110 - 140%

OVP Trip Range

120 - 140% V

out

Nom.

OVP Type

Self Recovering

Short Circuit/Overcurrent Protection

Shutdown/Hiccup

Turn-On Time

10 ms

Remote Shutdown

Positive Logic

Remote Shutdown Reference

Negative

Switching Frequency

500 kHz

Isolation

Input - Output

1500 VDC

Input - Case

1050 VDC

Output - Case

500 VDC

Temperature Coefficient

0.03 %/°C

Case Temperature

Operating Range

-40 To +100°C

Storage Range

-40 To +125°C

Thermal Shutdown Range

105 - 115°C

Vibration, 3 Axes, 5 Min Each

5 g, 10 - 55 Hz

MTBF

(Bellcore TR-NWT-000332)

Consult Factory

Safety

UL, CUL, TUV

Weight (Approx.)

6.0 oz

General

Efficiency vs. Load (48V Input)

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.

Notes

Rev. 0

8/01

MECHANICAL DRAWING

Thermal Impedance

Natural Convection

5.4 °C/W

100 LFM

3.8 °C/W

200 LFM

2.5 °C/W

300 LFM

1.7 °C/W

400 LFM

1.6 °C/W

Tolerances

Note:
Thermal impedance data is dependent on
many environmental factors. The exact
thermal performance should be validated for
specific application.

VWS SERIES - 300 WATT

-V

Gate out

Gate in

-V

out

-Sense

Trim

+Sense

out

Inches: (Millimeters)
.XX ± 0.020 .X ± 0.5
.XXX ± 0.010 .XX ± 0.25

Pin:
± 0.002 ± 0.05

( Dimensions as listed unless otherwise
specified.)

Pin

Function

MODELS - (See the last page of Section for options.)

VWS

DIA 0.080"

(2.0mm)

DIA 0.040"

(1.0mm)

1.700"(43.2mm)

1.000"(25.4mm)

1.400"(35.6mm)

0.400"(10.2mm)

0.700"(17.8mm)

(4.6mm)

0.18"

0.50"

(12.7mm)

(0.6mm)

0.025" REF.

-0.50"(-12.7mm)

-0.300"(-7.6mm)

4.60"

(116.8mm)

2.40"

(61.0mm)

MOUNTING INSERTS

M3X.5 THROUGH 4PL

BOTTOM VIEW

-0.19"

(-4.8mm)

4.200"

(106.7mm)

Vin

(Volts)

Vin Range

(Volts)

Iin Max.*

(Amps)

Vout

(Volts)

Iout Rated

(Amps)

Ripple & Noise

Pk-Pk (mV)

Efficiency

Typ. **

Model

24
24
24
24
24
48
48
48
48

18 - 36
18 - 36
18 - 36
18 - 36
18 - 36
36 - 72
36 - 72
36 - 72
36 - 72

21.0
21.0
21.0
21.0
21.0
10.5
10.5
10.5
10.5

12
15
24
28
48
12
15
24
28

20.8
16.7
10.4

8.9
5.2

25.0
20.0
12.5
10.7

120
150
200
200
200
120
150
200
200

81%
81%
82%
82%
84%
85%
84%
85%
86%

VWS250YH-A
VWS250YJ-A
VWS250YK-A
VWS250Y28-A
VWS250YL-A
VWS300ZH-A
VWS300ZJ-A
VWS300ZK-A
VWS300Z28-A

Denotes advanced product release. Consult factory for product availability.
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.

OPTIONS

When ordering equipment options, use the following suffix information. Select the option(s) that you prefer and

add them to the model number. Example ordering options are located below the options table.

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 President of Power-One, Inc.

TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manu-
factured. Specifications are subject to change without notice.

OPTIONS

SUFFIX

APPLICABLE SERIES

REMARKS

Negative Logic

HAS, HBD, HBS, HES, HLS, LES,

TTL "Low" Turns Module ON

QBS, QES, QLS, TES, TQD

TTL "High" Turns Module OFF

Lucent Compatible Trim

HAS, HBD, HBS, HES, HLS, QBS, QES,
QLS

Terminal Strip

XWS, XWD, XWT

Trim

IAS, LES

Enable

IAD, IAS, LES, SMS

Trim and Enable

IAS, LES

Current Share

SMS

Headerless

Encapsulated EWS, IWS, OWS

PIN LENGTH AND HEATSINK
OPTIONS

Standard Pin Length is 0.180"
(4.6mm)

0.110" (2.8mm) Pin Length

All Units (Except SMS)

0.150" (3.8mm) Pin Length

All Units (Except SMS)

0.24" (6.1mm) Horizontal Heatsink