Rev. B

DCNSR Series

1.5 to 15 Watts

1A Output Current

Non-Isolated DC/DC Converters

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

09/18/2013

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

Page 2 of 5

SPECIFICATIONS: DCNSR 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

See Table

No Load Input Current

See Table

Maximum Input Current

Vin=Vin(min); Io=Io(max)

1

A

Input Filter

C filter

Input Reflected Ripple Current

100

mA

OUTPUT SPECIFICATIONS

Output Voltage

See Table

Voltage Accuracy

Full load

-2.0

+2.0

% Vo

Line Regulation

-0.2

+0.2

% Vo

1.5V (standard)

-0.6

+0.6

% Vo

Others (Standard)

-0.4

+0.4

% Vo

1.5V & 1.8V (suffix “A”)

-1.2

+1.2

% Vo

Load Regulation

Others (suffix “A”)

10% to 100% of full load

-0.4

+0.4

% Vo

Output Power

1.5 – 15 Watts

Output Current

1

A

1.5V to 6.5VDC output models

50

mVp-p

Ripple & Noise

9V to 15VDC output models

20MHz Bandwidth

75

mVp-p

Output Voltage Overshoot -Startup

full load

1

% Vo

Minimum Load

0

%

Capacitive Load (max)

Tested at minimum input voltage and constant resistive load

470

µ

F

Output Current Limit

2.0

A

Rise Time

Time for Vo to rise from 10% to 90% of Vo

3.5

ms

Start-up Time

Nominal Vin and constant resistive load

power up

5

ms

Temperature Coefficient

-0.015

+0.015

%/°C

DYNAMIC RESPONSE

Peak Deviation

50% to 100% load step change

150

mV

Recovery Time

50% to 100% load step change

250

µs

PROTECTION

Short Circuit Protection

Continuous, automatic recovery

Over Current Protection

yes

Over Temperature Protection

Internal IC Junction

170

°C

GENERAL SPECIFICATIONS

Efficiency

Typical value at min or max input voltage and full load

See Table

1.5V to 3.3VDC output models

300

KHz

Switching Frequency

5V to 15VDC output models

580

KHz

Isolation Voltage

none

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature

With derating (see derating curves)

-40

+85

°C

Storage Temperature

-55

+125

°C

Thermal Shock

MIL-STD-810F

Vibration

MIL-STD-810F

Relative Humidity

Non-condensing

0

90

% RH

BELLCORE TR-NWT-000332

26,130,000 hours

MIL-HDBK-217F

6,004,000 hours

PHYSICAL SPECIFICATIONS

Case Material

Non-conductive black plastic

Base Material

none

Potting Material

Silicon (UL94-V0)

Weight

0.07oz (1.9g)

Dimensions (L x W x H)

0.46 x 0.40 x 0.30 inches (11.7 x 10.1 x 7.5 mm)

SAFETY

Safety Approvals

UL60950-1, IEC60950-1, EN60950-1