TYPICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED OPERATING CONDITIONS

INHIBIT

Output Power

• 10 to 20 watts depending on model

Lead Soldering Temperature (10 sec per lead)

• 300°C

Storage Temperature Range (Case)

• –55°C to +125°C

B4-14

MHE/MLP SERIES

20 WATT

Output Voltage Temperature Coefficient

• 150 ppm/°C, typical

Input to Output Capacitance

• 60 pF, typical

Current Limit

• 125% of full load, typical

Isolation

• 100 megohm minimum at 500 V

Conversion Frequency

• 125 kHz, typical

Inhibit Pin Voltage (unit enabled)

• 11 to 13 V MHE28XXX, MLP28XXX

• 8 to 10 V MHE12XXX

Input Voltage Range

Continuous

• 17 to 40 VDC MHE28XXX

• 10 to 16 VDC MHE12XXX

• 16 to 40 VDC MLP28XXX

Transient

• 50 V for 50 msec on 28 V input models

Case Operating Temperature (Tc)

• –55°C to +85°C full power

Derating Output Power/Current

• Linearly from 100% at 85°C to 0% at 115° C

• MHE28XXX models derate by 33% at 16 Vin

Inhibit TTL Open Collector

• Logic low (output disabled)

Logic low voltage

≤0.8 V

• Referenced to input common

• Logic high (output enabled)

Open collector

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

SINGLE OUTPUT MHE12XX MODELS

MHE1205S

MHE1212S

MHE1215S

PARAMETER

CONDITION

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

OUTPUT VOLTAGE

4.95

5.00

5.05

11.88

12.00

12.12

14.85

15.00

15.15

VDC

OUTPUT CURRENT

–55°C TO +85°C

—

—

3

—

—

1.25

—

—

1.0

A

OUTPUT POWER

–55°C TO +85°C

—

—

15

—

—

15

—

—

15

W

OUTPUT RIPPLE

VOLTAGE

0 TO 1 MHz

—

35

70

—

35

70

—

35

70

mV p-p

LINE REGULATION

—

2

5

—

3

10

—

3

10

mV

LOAD REGULATION

NO LOAD TO FULL

—

10

20

—

5

15

—

10

20

mV

INPUT VOLTAGE

CONTINUOUS

10

12

16

10

12

16

10

12

16

VDC

TRANSIENT 50 ms

—

—

—

—

—

————

V

INPUT CURRENT

NO LOAD

—

—

24

—

—

32

—

—

32

mA

INPUT RIPPLE

CURRENT

10 kHz – 2 MHz

—

30

80

—

30

80

—

30

80

mA p-p

EFFICIENCY

78

81

—

79

82

—

80

83

—

%