Rev. E

DCHBW75 Series

4:1 Input Voltage Ranges

Up to 76.8 Watts, Single Outputs

Half-Brick DC/DC Power Converters

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

05/21/2013

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

Page 2 of 8

SPECIFICATIONS: DCHBW75 SERIES

All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.

We reserve the right to change specifications based on technological advances.

SPECIFICATION

TEST CONDITIONS

Min

Typ

Max

Unit

INPUT SPECIFICATIONS

24VDC nominal input models

9

24

36

48VDC nominal input models

18

48

75

Input Voltage Range

110VDC nominal input models

43

110

160

VDC

24VDC nominal input models

9

48VDC nominal input models

18

Start-up Voltage

110VDC nominal input models

43

VDC

24VDC nominal input models

7.5

48VDC nominal input models

16

Shutdown Voltage

110VDC nominal input models

36

VDC

24VDC nominal input models

50

48VDC nominal input models

100

Input Surge Voltage (100ms)

110VDC nominal input models

185

VDC

Input Current

No Load

See Table

Pi Type

Parallel diode

OUTPUT SPECIFICATIONS

Output Voltage

See Table

Line Regulation

Low line to high line at full load

-0.1

+0.1

%

Load Regulation

No load to full load

-0.1

+0.1

%

Voltage Accuracy

Full load an nominal Vin

-1

+1

%

-20

+10

%

Output Power

See Table

Output Current

See Table

Minimum Load

0

%

Ripple & Noise (peak to peak)

20MHz Bandwidth

See Table

Transient Response Recovery Time

25% load step change

200

µs

110VDC Input Models

60

ms

Start-Up Time

Others

Nominal input and constant resistive load

Power Up or Remote On/Off

25

ms

10

% Vo

Temperature Coefficient

-0.02

+0.02

%/°C

PROTECTION

Over Voltage Protection Threshold

Hiccup

115

130

% Vo

110VDC nominal input models

150

Over Current Protection Threshold

Others

110

140

% Io

Short Circuit Protection

Hiccup, automatic recovery

Over Temperature Protection

+115

°C

DC/DC ON

Open or 3V < Vr < 12V

Positive Logic (standard)

DC/DC OFF

Short or 0V < Vr < 1.2V

DC/DC ON

Short or 0V < Vr < 1.2V

Negative Logic (optional)

DC/DC OFF

Open or 3V < Vr < 12V

Input Current of Remote Control Pin

Nominal Vin

-0.5

1

mA

Remote Off State Input Current

Nominal Vin

3

mA