TYPICAL CHARACTERISTICS

SYNC AND INHIBIT (INH1, INH2)

PINS NOT IN USE

RECOMMENDED OPERATING CONDITIONS

ABSOLUTE MAXIMUM RATINGS

Input Voltage Range

• 16 to 40 VDC continuous

• 50 V for 120 msec transient

Case Operating Temperature (Tc)

• –55°C to +125°C full power

• –55°C to +135°C absolute

Derating Output Power/Current

• Linearly from 100% at 125°C to 0% at 135° C

2

MOR SERIES

120 WATT

Input Voltage

• 16 to 40 VDC

Power Dissipation (Pd)

• 30 W

Output Power

• 66 to 120 watts depending on model

Lead Soldering Temperature (10 sec per lead)

• 300°C

Storage Temperature Range (Case)

• –65°C to +150°C

Output Voltage Temperature Coefficient

• 100 ppm/°C typical

Input to Output Capacitance

• 150 pF typical

Undervoltage Lockout

• 15.5 V input typical

Current Limit

• 125% of full load typical

Isolation

• 100 megohm minimum at 500 V

Audio Rejection

• 40 dB typical

Conversion Frequency

• Free run mode 550 kHz typical

460 kHz. min, 570 kHz max

• External sync range 525 to 625 kHz

Inhibit Pin Voltage (unit enabled)

• INH1 = 13 V typ, INH2 = 8 V typ

Notes: See notes 1, 2, 3, and 4 on the following page.

SINGLE OUTPUT MODELS

MOR283R3S

MOR2805S

MOR286R3S

MOR289R5S

PARAMETER

CONDITION

MIN

TYP MAX

MIN

TYP MAX

MIN

TYP MAX

MIN

TYP MAX

UNITS

OUTPUT VOLTAGE

3.25

3.30

3.35

4.95

5.00

5.05

6.24

6.30

6.36

9.40

9.50 9.60

VDC

OUTPUT CURRENT

0

—

20

0

—

20

0

—

16

0

—

11

A

OUTPUT POWER

0

—

66

0

—

100

0

—

100

0

—

105

W

OUTPUT RIPPLE

10 kHz - 20 MHz

VOLTAGE

Tc = –55°C to +125°C

—

30

80

—

30

80

—

75

100

—

75

120

mV p-p

10 kHz - 2 MHz

Tc = –55°C to +125°C

—

20

50

—

20

50

—

50

60

—

50

80

LINE REGULATION

—

0

20

—

0

20

—

0

20

—

0

20

mV

LOAD REGULATION

NO LOAD TO FULL

—

0

20

—

0

20

—

0

20

—

0

20

mV

INPUT VOLTAGE

CONTINUOUS

16

28

40

16

28

40

16

28

40

16

28

40

VDC

TRANSIENT 120 ms

—

—

50

—

—

50

—

—

50

—

—

50

V

INPUT CURRENT

NO LOAD

—

70

130

—

70

130

—

70

130

—

70

130

mA

FULL LOAD

—

—

3.2

—

—

4.67

—

—

4.45

—

—

4.63

A

INHIBITED - INH1

—

—

10

—

—

10

—

—

10

—

—

10

mA

INHIBITED - INH2

—

—

70

—

—

70

—

—

70

—

—

70

INPUT RIPPLE

10 kHz - 20 MHz

CURRENT

Tc = –55°C to +125°C

—

40

90

—

50

130

—

50

100

—

50

130

mA pp

EFFICIENCY

74

78

—

78

81

—

81

83

—

81

84

—

%

POWER DISSIPATION

OVERLOAD

—

—

27

—

—

30

—

—

30

—

—

30

W

—

—

22

—

—

27

—

—

24

—

—

24

RECOVERY

—

—

10

—

—

10

—

—

10

—

—

10

ms

OUTPUT CURRENT

TRIP POINT

—

—

25

—

—

25

—

—

20

—

—

14

A

—

—

24

—

—

24

—

—

19

—

—

13

STEP LOAD RESP.

50% – 100% – 50%

TRANSIENT

—

—

250

—

—

250

—

—

500

—

—

500

mV pk

—

—

200

—

—

200

—

—

300

—

—

300

µs

STEP LINE RESP.

16 – 40 – 16 VDC

—

—

400

—

—

400

—

—

500

—

—

500

mV pk

—

—

300

—

—

300

—

—

300

—

—

300

µs

START-UP

DELAY

—

—

10

—

—

10

—

—

10

—

—

10

ms

OVERSHOOT

—

0

25

—

0

50

—

0

50

—

0

50

mV pk

INHIBIT PIN CURRENT

UNIT INHIBITED

—

0.1

1.0

—

0.1

1.0

—

0.1

1.0

—

0.1

1.0

mA

Sync In (525 to 625 kHz)

• Logic low 0.8 V max, duty cycle 15% to 50%

• Logic high 4.5 V min, 9 V max

• Referenced to input common

Sync Out - Referenced to input common

Inhibit (INH1, INH2) : TTL Open Collector

• Logic low (output disabled), V = 0.2 V max.

• INH1 referenced to input common

• INH2 referenced to output common

• Logic high (output enabled) open collector

Trim

Case

Inhibit (INH1, INH2)

Sync Out

Sync In

Share

Sense Lines

No connection

Users discrimination

No connection

No connection

Connect to input common

No connection

Must be connected to

appropriate outputs

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