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

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

LANCW12 Series

Single and Dual Output

12 Watt DC/DC Converter

2:1 Ultra Wide Input Voltage

MECHANICAL DRAWING

(DIP) PIN CONNECTION

PIN

SINGLE

DUAL

PIN

SINGLE

DUAL

1

CTRL

CTRL

2

-INPUT

-INPUT

23

+INPUT

+INPUT

3

-INPUT

-INPUT

22

+INPUT

+INPUT

9

NC

COMMON

16

-OUTPUT COMMON

11

NC

-OUTPUT

14

+OUTPUT +OUTPUT

Recommended Filter for EN55022 Class B Compliance

+Vin

-Vin

+Vout

-Vout

L1

D/D Converter

C1

C4

C3

Load

C2

＋INPUT

－INPUT

1

2

3

4

Recommended EN55022 Class B Filter Circuit Layout

FIGURE 1

FIGURE 2

DIP TYPE

SMT TYPE

(add suffix “S”)

(SMT) PIN CONNECTION

PIN

SINGLE

DUAL

PIN

SINGLE

DUAL

1

CTRL

CTRL

2

-INPUT

-INPUT

23

+INPUT

+INPUT

3

-INPUT

-INPUT

22

+INPUT

+INPUT

9

NC

COMMON

16

-OUTPUT COMMON

11

NC

-OUTPUT

14

+OUTPUT +OUTPUT

Others

NC

NC

Others

NC

NC

LANCW12

SERIES

Pin size is 0.02(0.5) Dia or

0.01 x 0.02 (0.25 x 0.50) Rectangular Pin

14

23

22

16

3

9

2

1

11

0.600(15.24)

0.80(20.3)

0.40

(10.2)

0.15

(3.8)

0.08(2.0)

BOTTOM

VIEW

1.00(25.4)

0.92(23.4)

0.44(11.2)

0.43(10.9)

0.80(20.3)

24

13

16

20

12

1

5

9

BOTTOM

VIEW

Pin Area

0.04 x 0.02

(1.0 x 0.5)

1. All dimensions are in inches (mm)

Tolerance: XX.XX ±0.02 (X.X±0.5)

XX.XXX±0.01 (X.XX±0.25)

2. Pin pitch tolerance ±0.01 (0.25)

The components used in Figure 1, together with the manufacturers’ part numbers for

these components, are as follows:

C1

C2

C3

C4

L1

LANC12xxxW12

3.3uF/50V

N/A

1000pF/2KV

1000pF/2KV

325uF

Common Choke

LANC24xxxW12

4.7uF/50V

N/A

1000pF/2KV

1000pF/2KV

325uF

Common Choke

LANC48xxxW12

2.2uF/100V

2.2uF/100V

1000pF/2KV

1000pF/2KV

325uF

Common Choke