W30 Series

DC/DC MODULES

The W30 Family of high efficiency DC/DC converters offer power levels of up to 30 Watts, exceeding that of other products with the same Industry-Standard Pinouts, while providing much smaller

footprints. With a wide input voltage range and single outputs, ranging from 1.5 to 15 Volts, these converters provide versatility without sacrificing the board space. All models feature an input filter

and microcontroller-based protection features. The open frame construction allows very efficient heat transfer with no hot spots. All converters combine creative design practices with highly derated

power devices to achieve superior efficiencies (up to 94%), reliability, high performance and low cost solution to systems designers.

Specifications & Features Summary

• No minimum load required

• On/Off pin control

• -40°C to +85°C ambient operation

• Output adjustment +/-10% range

• 1500V, 10M

Ω input-to-output isolation

• Output overcurrent protection

• Input Under voltage protection

• Input Over voltage protection

• Synchronous rectification topology

• MTBF of up to 1,000,000 hours @ 50°C (Bellcore)

• Over Voltage protection

• Over Temperature protection

• Please add suffix “A” or “B”, depending on Pinout

• Please add suffix “N” for Negative Logic

• Delivers up to 30W in 1” x 2” package with Industry-Standard Pinouts

• UL 60950 pending, TUV EN60950 and CSA C22.2 No. (Pending)

Applications

• Servers, Switches and Data Storage • Networking Gear

• Wireless Communications

• Data Communications

• Distributed Power Architecture

• Telecommunications

• Semiconductor Test Equipment

• Industrial / Medical

Model

Input

Voltage

Range

(Vin)

Iin No

Load

I in

Full

Load

(A)

Output

Voltag

e

(Vo)

Output

Curren

t (Io) A

Eff

(Typ)

%

Regulation

Line/Load

(%)

Ripple

/ Noise

(MV)

pk-pk

W30-12S1.5

9-18

0.030

2.0

1.5

10.0

83

±0.2 / ±0.2

15

W30-12S1.8

9-18

0.035

2.38

1.8

10.0

84

±0.3 / ±0.2

15

W30-12S2.5

9-18

0.040

3.26

2.5

10.0

85

±0.2 / ±0.2

15

W30-12S3.3

9-18

0.040

3.26

3.3

8.0

90

±0.2 / ±0.2

20

W30-12S5

9-18

0.050

3.66

5.0

6.0

91

±0.2 / ±0.2

20

W30-12S12

9-18

0.050

3.58

12.0

2.5

93

±0.2 / ±0.2

50

W30-12S15

9-18

0.050

3.54

15.0

2.0

94

±0.2 / ±0.2

50

U30-12S1.5

9-36

0.030

2.05

1.5

10.0

81

±0.2 / ±0.2

15

U30-12S1.8

9-36

0.035

2.44

1.8

10.0

82

±0.3 / ±0.2

15

U30-12S2.5

9-36

0.040

3.30

2.5

10.0

84

±0.2 / ±0.2

15

U30-12S3.3

9-36

0.040

3.35

3.3

8.0

88

±0.2 / ±0.2

20

U30-12S5

9-36

0.050

3.75

5.0

6.0

89

±0.2 / ±0.2

20

U30-12S12

9-36

0.050

3.70

12.0

2.5

90

±0.2 / ±0.2

50

U30-12S15

9-36

0.050

3.66

15.0

2.0

91

±0.2 / ±0.2

50

W30-24S1.5

18-36

0.025

1.00

1.5

10.0

83

±0.2 / ±0.2

15

W30-24S1.8

18-36

0.028

1.19

1.8

10.0

84

±0.3 / ±0.2

15

W30-24S2.5

18-36

0.032

1.63

2.5

10.0

85

±0.2 / ±0.2

15

W30-24S3.3

18-36

0.035

1.63

3.3

8.0

90

±0.2 / ±0.2

20

W30-24S5

18-36

0.040

1.83

5.0

6.0

91

±0.2 / ±0.2

20

W30-24S12

18-36

0.050

1.81

12.0

2.5

92

±0.2 / ±0.2

50

W30-24S15

18-36

0.050

1.79

15.0

2.0

93

±0.2 / ±0.2

50

W30-48S1.5

36 - 75

0.025

.490

1.5

10.0

85

±0.2 / ±0.2

15

W30-48S1.8

36 - 75

0.028

.581

1.8

10.0

86

±0.3 / ±0.2

15

W30-48S2.5

36 - 75

0.032

.789

2.5

10.0

88

±0.2 / ±0.2

15

W30-48S3.3

36 - 75

0.035

.808

3.3

8.0

91

±0.2 / ±0.2

20

W30-48S5

36 - 75

0.040

.905

5.0

6.0

92

±0.2 / ±0.2

20

W30-48S12

36 - 75

0.050

.896

12.0

6.0

93

±0.2 / ±0.2

50

W30-48S15

36 - 75

0.050

.886

15.0

6.0

94

±0.2 / ±0.2

50

FOR POTTED UNITS AND OTHER AVAILABLE VOLTAGES

AND FEATURES PLEASE CONSULT THE FACTORY

PARAMETER

NOTES

MIN

TYP

MAX

UNIT

Absolute maximum rating

Input voltage

0

75

V

Operating ambient temperature

(see thermal charts)

-40

85

°C

Storage temperature

-55

125

°C

Humidity

95

%

Input characteristics

Operating input voltage range

9-18V,9-36V,18-36V, 36-75V

xx

xx

xx

V

Turn on voltage threshold

17/35

V

Turn off voltage threshold

16/34

V

Transient withstand

Transient duration: 100ms

100

V

Maximum input current

100% load , 18Vin

1.830

A

Off converter input current

10

mA

Output characteristics

Output voltage setpoint accuracy

1.0

%Vo

Output voltage line regulation

Vin =9-18,9-36,18-36,36-75V

±0.2

%

Output voltage load regulation

0%-100%Load

±0.2

%

Output voltage trim range

±10

%

Output voltage ripple / noise

(See notes & charts)

20Mz bandwidth,

100% Load, 12/24/48 Vin

See pinout A notes on charts

35

mV

(pk-pk)

Output over power protection

110

120

140

%

Over-voltage protection

120

135

%Vo

Temperature coefficient

±0.02

%/°C

Capacitive Load

10000

μF

Output characteristics

Startup time

5% to 95% of the Vo

1

ms

Transient recovery time

50% load change

250

μs

Transient peak deviation

50% load change

4

%Vo

Isolation characteristics

Isolation (primary to secondary)

1minute

1500

VDC

Isolation resistance

1500VDC, Primary to secondary

10

M

Ω

Isolation capacitance

Primary to secondary

1000

pF

Feature Characteristics

Switching frequency

(<2.5V = 300) (>3.3V=400)

300

400

KHz

ON/OFF control (Positive logic)

Converter On

Converter Off

All Models

3.5

0.8

V

V

ON/OFF control (Negative logic)

Converter On

Converter Off

All Models

3.5

0.8

V

V

Over Temperature Protection

Maximum component level

130

°C

Calculated MTBF

Bellcore @ 50°C

> 1,000,000 hrs

Hrs

Basic Operations and Functions

W30 Family is a high efficiency, isolated DC/DC converter. Neither heat sink nor airflow is required

when the unit operates at ambient temperature of 25C. The unit has basic control, output

adjustment and protection functions.

Input (Pin 2, Pin 3)

Input power Vin(+) must be connected to Positive input pin 3; Input power Vin(-) must be

connected to Negative input pin2.

Output (Pin 4, Pin 5)

Output power Vout(+) must be connected to Positive output pin 4; Output power Vout(-) must be

connected to Negative output pin6.

ON/OFF (Pin 1)

Permits the user to maintain unit On/Off, in order to properly sequence different power supplies

and reduce power consumption during the standby condition. There are two ON/OFF control

options: positive logic (W30-SX) and negative logic (W30-SXN). Both are referenced to Vin-.

Pin 1 is the "Enable" pin, connecting a TTL compatible pin. A TTL control signal to this pin,

according to the specification, turns the unit on or off.

The positive logic unit turns on when the pin is at logic high or open, and turns off at logic low. The

negative logic unit turns on when the pin is at logic low, and turns off at logic high state. Typical

ON/OFF connection is shown in Fig 1.

Remote Sense

The unit does NOT have remote sense pins.

Output Trim (Pin 6)

Permits the user to adjust the output voltage

up or down to achieve the custom voltage or

to make the output voltage margining.

The unit’s output voltage can be adjusted up

10% or down 10% relative to the rated

output voltage by adding an external resistor

between pin 6 and one of the output pins

(pin 4 and 5).

To increase the output voltage, a trim

resistor should be connected between pin

6(Trim) and pin 5 (Vout-).

To decrease the output voltage, a trim

resistor should be connected between pin 6

(Trim) and pin 4 (Vout+).

Fig 1. Recommended ON/OFF circuit configuration

3

+

Vin

2 Vin-

1 ON/OFF

Vout+ 4

Vout- 5

Trim 6

+

Vin

-

+

Vout

-

ON/OFF

●