Wall Industries, Inc.

Rev B

DCHAA SERIES

5~6 Watt DC/DC Power Converters

01/14/2013

Wall Industries, Inc. • 5 Watson Brook Road, 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 2 of 4

TECHNICAL SPECIFICATIONS: DCHAA 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

Nom

Max

Unit

INPUT SPECIFICATIONS

12VDC nominal input models

9

12

18

24VDC nominal input models

18

24

36

Input Voltage Range

48VDC nominal input models

36

48

75

VDC

12VDC nominal input models

25

24VDC nominal input models

50

Input Surge Voltage (100ms max.)

48VDC nominal input models

100

VDC

Input Reflected Ripple Current

Nominal Vin and full load

76

mAp-p

Input Current

See Table

Input Filter

Pi type

OUTPUT SPECIFICATIONS

Output Voltage

See Table

Voltage Accuracy

Nominal Vin and full load

-1

+1

%

Output Current

See Table

Minimum Load

0

A

Line Regulation

LL to HL at full load

-0.5

+0.5

%

Single Outputs

25% load to full load

-0.5

+0.5

Balanced Load

-0.5

+0.5

Load Regulation

Dual Outputs

Unbalanced Load: 25% to 100% load

-3

+3

%

Capacitive Load

See Table

Output Power

See Table

5V Output Models

110

150

12 V Output Models

70

Ripple & Noise (20MHz BW)

Others

150

200

mVp-p

Start-Up Time

Nominal Vin and constant resistive load

510

ms

Transient Response Settling Time

50% load step change

780

μs

Transient Response Overshoot

di/dt = 0.8/μs

±5

% Vo

Temperature Coefficient

-0.02

+0.02

%/°C

PROTECTION

Short Circuit Protection

Continuous, automatic recovery

Over Load Protection

% of full load

120

%

5V Output Models

6.2

12V Output Models

15

Over Voltage Protection

15V Output Models

Zener diode clamp

18

VDC

GENERAL SPECIFICATIONS

Efficiency

Nominal input and full load

See Table

Switching Frequency

150

KHz

I/O Isolation Voltage (rated)

60 seconds

4000

VACrms

I/O Isolation Test Voltage

Flash tested for 1 second

6000

Vpk

Isolation Resistance

500VDC

1

GΩ

Isolation Capacitance

12

pF

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature

Full load

-40

+85

°C

Case Temperature

+95

°C

Storage Temperature

-50

+125

°C

Relative Humidity

5

95

% RH

Cooling

Free air convection

MTBF

70,000

hours

PHYSICAL SPECIFICATIONS

Case Material

Non-conductive black plastic

Potting Material

Silicon rubber (UL94V-0)

Weight

0.56oz (16g)

Dimensions (L x W x H)

1.25 x 0.80 x 0.50 inches (31.7 x 20.3 x 12.65 mm)

EMC CHARACTERISTICS

EMI

EN55022 (radiation)

Meets class A