TYPICAL CHARACTERISTICS

RECOMMENDED OPERATING CONDITIONS

ABSOLUTE MAXIMUM RATINGS

INHIBIT

2

MSM SERIES

5 WATT

SINGLE OUTPUT MODELS

MSM283R3S

MSM2805S

MSM2812S

MSM2815S

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP MAX

MIN

TYP

MAX

MIN

TYP MAX

UNITS

OUTPUT VOLTAGE

Tc = 25°C

3.25

3.3

3.35

4.93

5

5.08 11.82

12

12.18 14.78

15

15.23

VDC

OUTPUT CURRENT

V

IN

= 16 TO 40 VDC

—

1.52

—

—

1.0

—

—

0.42

—

—

0.33

—

A

OUTPUT POWER

V

IN

= 16 TO 40 VDC

0

—

5

0

—

5

0

—

5

0

—

5

W

OUTPUT RIPPLE

10 kHz - 2 MHz

—

250

—

—

200

—

—

180

—

—

150

—

mV p-p

VOLTAGE

Tc = –55°C TO +125°C

—

1800

—

—

1500

—

—

1200

—

—

1000

—

LINE REGULATION

V

IN

= 16 TO 40 VDC

—

60

—

—

80

—

—

120

—

—

150

—

mV

LOAD REGULATION

NO LOAD TO FULL

—

150

—

—

250

—

—

350

—

—

400

—

mV

INPUT VOLTAGE

CONTINUOUS

16

28

40

16

28

40

16

28

40

16

28

40

VDC

NO LOAD TO FULL

TRANSIENT 120 ms

0

—

80

0

—

80

0

—

80

0

—

80

V

INPUT CURRENT

NO LOAD

—

28

—

—

25

—

—

20

—

—

16

—

FULL LOAD

—

242

—

—

235

—

—

230

—

—

223

—

mA

INHIBITED

—

4.5

—

—

4.5

—

—

4.5

—

—

4.5

—

INPUT RIPPLE

10k Hz - 10 MHz

—

30

—

—

25

—

—

20

—

—

15

—

mA p-p

CURRENT

Tc = –55°C TO +125°C

—

180

—

—

150

—

—

120

—

—

100

—

EFFICIENCY

Tc = 25°C

—

74

—

—

76

—

—

78

—

—

80

—

%

LOAD FAULT

POWER DISSIPATION

OVERLOAD

—

1.9

—

—

1.8

—

—

1.7

—

—

1.5

—

W

SHORT CIRCUIT

1

—

1

—

—

0.9

—

—

0.8

—

—

0.7

—

RECOVERY

2

—

9

—

—

8.5

—

—

8

—

—

7.5

—

ms

OUTPUT CURRENT

TRIP POINT

—

2.2

—

—

1.5

—

—

0.7

—

—

0.56

—

A

SHORT CIRCUIT

—

2.3

—

—

1.6

—

—

0.8

—

—

0.6

—

STEP LOAD

50 %–100%– 50%

RESPONSE

TRANSIENT

3

—

350

—

—

350

—

—

400

—

—

400

—

mV pk

RECOVERY

2

—

0.8

—

—

0.8

—

—

1.0

—

—

1.0

—

ms

STEP LINE

16 TO 40 TO 16 V

IN

RESPONSE

TRANSIENT

3

—

400

—

—

400

—

—

500

—

—

500

—

mV pk

RECOVERY

2

—

1.5

—

—

1.5

—

—

2.0

—

—

2.0

—

ms

START-UP

DELAY

—

4

—

—

4

—

—

4

—

—

4

—

ms

0 TO 28 VIN

OVERSHOOT

—

250

—

—

300

—

—

350

—

—

400

—

mV pk

Input Voltage

• 16 to 40 VDC

Output Power

•5 W

Power Dissipation

• 1.9 W

Lead Soldering Temperature (10 sec per lead)

• 300°C

Storage Temperature Range (Base plate)

• –55°C to +130°C

Input Voltage Range

• 16 to 40 VDC continuous

• 80 V for 120 msec transient

Case Operating Temperature (Tc)

• –55°C to +125°C full power

• –55°C to +130°C absolute

Derating Output Power/Current (Tc)

• Linearly from 100% at 125°C to 0% at 130°C

Inhibit – TTL Open Collector

• Logic low (output disabled)

• Inhibit pin current 0.34 mA typ

• Referenced to input common

• Logic high (output enabled) open collector

Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.

Output Voltage Temperature Coefficient

• 200 ppm/°C typical

Temperature Rise (Still Air)

• 18°C / watt dissipated, typical

Input to Output Capacitance

• 100 pF typical

Undervoltage Lockout

• 10 V input typical

Current Limit

• 160% of full load typical

Isolation

• 100 megohm minimum at 500 V

Conversion Frequency (kHz)

• 25°C, 200 min, 300 typ, 400 max

Inhibit Pin Voltage (unit enabled)

• 10 V, typical

Notes:

1. Short circuit is measured with a 50 mohm resistive load.

2. Time to settle within 1% of V

OUT

3. Transition

≥ 10 µs.