2

OUTPUT SPECIFICATIONS

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

Efficiency

Full rated load, 48 VDC Input.

80

%

Minimum Load; V1, V2, V3

Minimum load required to maintain regulation with no load on V4.

None

A

Minimum Load, V3

Minimum load on V3 required to maintain regulation on V4.

50% OF V4 Load

A

Ripple and Noise

Full load, 20 MHz bandwidth.

See Model Selection Chart

Output Power

250 LFM forced-air cooling.

200

W

Output Power

400 LFM forced-air cooling.

250

W

Overshoot /Undershoot

Output voltage overshoot/undershoot at turn-on.

0

%

Regulation

Varies by output. Total regulation includes: line changes over the specified

See Model Selection Chart

input range, changes in load starting at 50% load and changing to 100% load.

Turn-on Delay

Time required for initial output voltage stabilization.

150

ms

Initial Setting Accuracy

±1%

INTERFACE SIGNALS AND INTERNAL PROTECTION

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

Overvoltage Protection

Latch style overvoltage protection.

120

130

%Vnom

Overload Protection

Fully protected against output overload and short circuit. Automatic recovery upon removal of overload condition.

Overtemperature Protection

System shutdown due to excessive internal temperature, automatic reset.

Power Fail (FAL#)

TTL compatible signal, open collector active low signal. Indicates any output below

90% and/or a low input <36VDC.

Current Share

Accuracy of shared current with up to 6 parallel units. Single wire current share on V1, V2, and V3.

10

%

Remote Sense

Available on V1, V2, and V3. Total voltage compensation for cable losses with

150

mV

respect to the main output.

Inhibit (INH#)

TTL-compatible signal inhibited with GND or TTL "0".

Enable (EN#)

Contact closure to external ground to start unit. On shortest pin (last make, first break).

Overtemperature Warning (DEG#) Provides warning when power supply temperature exceeds rating. TTL-compatible open.

Front Panel LED Status Indicators

Input OK (Green), Output Failure (Red).

SAFETY, REGULATORY, AND EMI SPECIFICATIONS

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

Agency Approvals

UL1950.

cUL1950.

Approved

EN60950 (TÜV).

Dielectric Withstand Voltage

Input to Output per EN60950.

4243

VDC

Electromagnetic Interference

EN55022 / CISPR 22 -

Conducted.

A

Radiated.

A

Class

ESD Susceptibility

Per EN61000-4-2, level 4.

8

kV

Radiated Susceptibility

Per EN61000-4-3, level 3.

10

V/M

EFT/Burst

Per EN61000-4-4, level 3.

±2

kV

Input Surge

Per EN61000-4-5, level 3.

Line to Line

1

kV

Line to Ground

2

Conducted Disturbance

Per EN61000-4-6, level 2.

3V

Insulation Resistance

Input to Output.

10

M

ENVIRONMENTAL SPECIFICATIONS

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

Altitude

Operating.

10k

ASL Ft.

Non-Operating.

40k

ASL Ft.

Operating Temperature

With 400 LFM forced-air cooling

At 100% load:

0

50

°C

Derate linearly above 50°C by 2.5% per °C.

At 50% load:

70

°C

Storage Temperature

-40

85

°C

Relative Humidity

Non-Condensing.

5

95

%RH

Shock

Peak acceleration.

20

Vibration

Random vibration, 10 Hz to 2 kHz, 3 axis.

6

CPD SERIES - 250 WATT