Rev E

LAN K SERIES

2~4 Watts

DC/DC Converter

Single and Dual Output

1/9/2018

Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 •

Fax 603-778-9797

website: www.wallindustries.com • e-mail: sales@wallindustries.com

Page 5 of 7

MECHANICAL DRAWINGS

Pin

Single Output

Dual Output

2

-Vin

-Vin

3

-Vin

-Vin

9

No Pin

Common

11

NC

-Vout

14

+Vout

+Vout

16

-Vout

Common

22

+Vin

+Vin

23

+Vin

+Vin

1.

Tolerance: X.XX±0.01 (X.X±0.25)

X.XXX±0.005 (X.XX±0.13)

2.

Pin Tolerance: ±0.002 (±0.05)

DESIGN & FEATURE CONSIDERATIONS

Input Source Impedance

The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the

stability of the power module.

In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to

ensure startup.

Capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low Equivalent

Series Resistance (ESR <1.0Ω at 100 KHz) capacitor of 8.2µF for the 5V input devices, a 3.3µF for the 12V input devices, and a 1.5µF

for the 24V and 48V devices.

+

+Out

-Out

+Vin

-Vin

DC / DC

Converter

Load

DC Power

Source

+

-

Cin

Maximum Capacitive Load

The LAN K series has a limitation of maximum connected capacitance at the output. The power module may be operated in current

limiting mode during start-up, affecting the ramp-up and the startup time.

For optimum performance we recommend 1000µF maximum capacitive load for dual outputs and 4000µF capacitive load for single

outputs.

Over Current Protection

To provide protection in a fault (output over load) condition, the unit is equipped with internal current limiting circuitry and can endure

current limiting for an unlimited duration. At the point of current-limit inception, the shifts from voltage control to current control. The unit

operates normally once the output current is brought back into its specific range.