FUNCTIONAL SPECIFICATIONS

➀ ➁

ABSOLUTE MAXIMUM RATINGS

Conditions

Minimum

Typical/Nominal

Maximum

Units

Input Voltage, Continuous

Full power operation

0

13.2

Vdc

Isolation Voltage

Input to output tested 100 mS

2250

Vdc

Input Reverse Polarity

None, install external fuse

None

Vdc

On/Off Remote Control

Power on or off, referred to -Vin

0

5

Vdc

Output Power

0

240

W

Output Current

Current-limited, no damage,

short-circuit protected

0

4.44

A

Storage Temperature Range

Vin = Zero (no power)

-55

125

˚C

Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those

listed in the Performance/Functional Specifications Table is not implied nor recommended.

INPUT

Operating voltage range

11

12

13.2

Vdc

Input Voltage Slew Rate

1

V/μs

Turn On/Start-up threshold

Rising input voltage

10.3

11

Vdc

Turn Off/Undervoltage lockout

Falling input voltage

9.2

9.9

Vdc

Hysteresis

1

4

Vdc

Overvoltage Shutdown

13.8

14.8

Vdc

Reverse Polarity Protection

None, install external fuse

None

Vdc

Internal Filter Type

Pi

Input current

Full Load Conditions

Vin = nominal

22.5

A

Low Line

Vin = minimum

24.5

A

Inrush Transient

Peak Current

30

A

I²t

0.1

No Load Input Current

Iout = minimum, unit = ON

300

500

mA

Shut-Down Mode Input Current

10

mA

Reflected (back) ripple current

The external input capacitance shall be the max

capacitance

0.1

Arms

Back Ripple Current

no filtering

2

Arms

Input Capacitance

➂

250

750

μF

GENERAL and SAFETY

Efficiency (Ta = 25°C, 100 LFM, airflow

across long axis, Vin = 12V)

80% of Irated ≤ Iout ≤ 100% of Irated

92.8

94

%

50% of Irated ≤ Iout < 80% of Irated

91.8

93.5

%

20% of Irated

86.8

88.5

%

Efficiency (Ta = 80°C, 250 LFM, airflow

across long axis, Vin = 12V)

80% of Irated ≤ Iout ≤ 100% of Irated

92.8

94

%

50% of Irated ≤ Iout < 80% of Irated

91.8

93.5

%

20% of Irated

86.8

88.5

%

Isolation

Isolation Voltage

Input to output, continuous

2250

Vdc

Insulation Safety Rating

basic

Isolation Resistance

10

MΩ

Isolation Capacitance

3300

pF

Safety

Certified to UL-60950-1, CSA-C22.2 No.60950-1,

IEC/EN60950-1, 2nd edition

Yes

Calculated MTBF

Per Telcordia SR332, issue 1 class 3, ground

fixed, Tambient = +25˚C

1

Service Life at 40°C ambient temperature

with 80% load

10

years

ESD

Human Body Model (HBM)

± 2000

V

Charged Device Model (CDM)

± 500

V

Machine Model (MM)

± 200

V

www.murata-ps.com/support

SPC-54/4.4-L12PG-C

240W PoE+ Regulated Converter

MDC_SPC-54/4.4-L12PG-C.A03 Page 2 of 13