Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

11/14/2011

603-778-2300 www.wallindustries.com Fax 603-778-9797

Page 3 of 8

MMW Series

Single and Dual Output

4:1 Input Voltage Range

25~30 Watt DC/DC Converter

Rev C

BLOCK DIAGRAMS

Single Output

Dual Output

+Vo

PWM

Isolation

Ref.Amp

LC

Filter

+Vin

-Vin

-Vo

On/Off

Trim

OVP

OTP

OVP

+Vo

PWM

Isolation

Ref.Amp

LC

Filter

+Vin

-Vin

Com.

-Vo

On/Off

Trim

OVP

OTP

OVP

MECHANICAL DRAWING

55.32[2.18] max.

16.3[0.64] max.

Heat-Sink

Thermal pad

Clamp

Converter

10.16

[0.40]

10.16

[0.40]

10.16

[0.40]

[0.20]

5.08

6.0

[0.24]

10.2

[0.40]

7.6

[0.40]

10.16

5.08

[0.20]

3.6

]

0

3

.

0

[

]

4

1

.

0

[

40.6 [1.60]

BOTTOM VIEW

Physical Characteristics

Case Size: 2.0 x 1.6 x 0.4 inches (50.8 x 40.6 x 10.2 mm)

Case Material: Metal with non-conductive baseplate

Weight: 48g

Flammability: UL94V-0

Physical Characteristics

Heatsink Material: Aluminum

Finish: Anodic treatment (black)

Weight: 2g

The advantages of adding a Heatsink are:

1. To help heat dissipation and increase the stability and reliability of

DC/DC converters at high operating temperature atmosphere

2. To upgrade the operating temperature of DC/DC converters.

To order the converter with Heatsink please add the suffix “HS” to the

model number

Tolerance:

Millimeters

Inches

X.X±0.5

X.XX±0.02

X.XX±0.25

X.XXX±0.01

Pin Diameter:

±0.05

±0.002

5

6

7

8

1

2

4

Unit: mm [inches]

Unit: mm [inches]

PIN CONNECTIONS

PIN

SINGLE OUTPUT

DUAL OUTPUT

1

+Vin

+Vin

2

-Vin

-Vin

4

Remote ON/OFF

Remote ON/OFF

5

No Pin

+Vout

6

+Vout

Common

7

-Vout

-Vout

8

Trim

Trim

Standard Models

Heatsink Option