SPM15 Series

Single Output Potted Metal Package

Isolated 15-Watt DC-DC Converters

MDC_SPM15.C03 Page 6 of 36

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FUNCTIONAL SPECIFICATIONS – MODEL SPM15-033-Q48

ABSOLUTE MAXIMUM RATINGS

Conditions

➀

Minimum

Typical/Nominal

Maximum

Units

Input Voltage, Continuous

0

80

Vdc

Input Voltage, Transient

100 mS max. duration

100

Vdc

Isolation Voltage

Input to output

1600

Vdc

On/Off Remote Control

Power on, referred to -Vin

0

15

Vdc

Output Power

1.63

16.75

W

Output Current

Current-limited, no damage, short-circuit protected

0.5

5

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 or recommended.

INPUT

Operating Voltage Range

18

48

75

Vdc

Recommended External Fuse

Fast blow

2

A

Start-up Threshold

Rising input voltage

15.5

16.9

17.9

Vdc

Undervoltage Shutdown (50% load)

Falling input voltage

15

16

16.8

Vdc

Internal Filter Type

C

Input Current

Full Load Input Current

Vin = 24V

0.764

0.788

A

Full Load Input Current

Vin = 48V

0.388

0.403

A

Low Line Input Current

Vin = minimum

1.03

1.04

A

Inrush Transient

0.05

A2-Sec.

Short Circuit Input Current

0.05

0.1

A

Minimum Load Input Current

Iout = minimum, unit=ON

60

90

mA

Shut-Down Input Current (Off, UV, OT)

12

mA

Reflected (Back) Ripple Current

➁

Measured at input with specified filter

30

mA, p-p

GENERAL and SAFETY

Efficiency

Vin = 24V, full load

88.5

90

%

Vin = 48V, full load

86.5

88.5

%

Isolation

Isolation Voltage

Input to output

1600

Vdc

Isolation Resistance

10

MΩ

Isolation Capacitance

1500

pF

Safety

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

1, IEC/60950-1, 2nd edition, with AM1

Yes

Calculated MTBF

Per Telcordia SR332, issue 1, class 3, ground

fixed, Tambient = +25°C

2,000,000

Hours

DYNAMIC CHARACTERISTICS

Fixed Switching Frequency

325

350

375

KHz

Startup Time

Power on to Vout regulated

10

50

mS

Startup Time

Remote ON to Vout regulated

10

50

mS

Dynamic Load Response

50-75-50% load step, settling time to within

1% of Vout

75

150

μSec

Dynamic Load Peak Deviation

same as above

±75

±125

mV

FEATURES and OPTIONS

Remote On/Off Control

➂

“N” suffix

Negative Logic, ON state

ON = Ground pin

-0.7

0.8

V

Negative Logic, OFF state

OFF = Pin open

10

15

V

Control Current

Open collector/drain

1

mA

“P” suffix

Positive Logic, ON state

ON = Pin open

10

15

V

Positive Logic, OFF state

OFF = Ground pin

-0.7

0.7

V

Control Current

Open collector/drain

1

mA