Rev A

DCQUW60 SERIES

Up to 60 Watts

Quarter Brick DC/DC Converter

Single Outputs

2/1/2018

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 6 of 8

FUSE CONSIDERATIONS

This power module is not internally fused. An input line fuse must always be used.

This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-along operation to an integrated part of

sophisticated power architecture.

To maximum flexibility, internal fusing is not included; however, to achieve maximum safety and system protection, always use an input line fuse.

Suggested input line below:

Model

Fuse Rating (A)

Fuse Type

DCQUW60-36Sxx

12A

Fast-Acting

DCQUW60-72Sxx

8A

Fast-Acting

Table based on information provided in data sheet on inrush energy and maximum DC input current at low Vin.

THERMAL CONSIDERATIONS

The power module operates in a variety of thermal environments.

However, sufficient cooling should be provided to help ensure reliable operation of the unit.

Heat is removed by conduction, convection, and radiation to the surrounding environment.

Proper cooling can be verified by measuring the point in the figure below.

The temperature at this location should not exceed “maximum case temperature”.

When operating, adequate cooling must be provided to maintain the test point temperature at or below “maximum case temperature”.

You can limit this temperature to a lower value for extremely high reliability.

• Thermal test condition with vertical direction by natural convection (20LFM)

• The iron base-plate dimension is 19” x 3.5” x 0.063” (the height is EIA standard 2U).

•The heat sink is optional and P/N: 7G-0029B-F, 7G-0030B-F, 7G-0031B-F, 7G-0032B-F

BASE PLATE

OUTPUT VOLTAGE ADJUSTMENT

Output voltage is adjustable for 10% trim up or -20% trim down of nominal output voltage by connecting an external resistor between the Trim pin and

either the +Sense or -Sense pins.

With an external resistor between the Trim and -Sense pin, the output voltage set point decreases

With an external resistor between the Trim and +Sense pin, the output voltage set point increases.

Maximum output deviation is +10% inclusive of remote sense.

The external TRIM resistor needs to be at least 1/8W of rated power.

Trim Up Equation

Ω













∆

∆

+

−

∆

∆

+

=

k

%

%

22

.

10

511

%

225

.

1

%)

100

(

V

11

.

5

R

OUT

U

Trim Down Equation

Ω













−

∆

=

k

22

.

10

%

511