TYPICAL CHARACTERISTICS

RECOMMENDED OPERATING CONDITIONS

ABSOLUTE MAXIMUM RATINGS

INHIBIT

2

MCH SERIES

1.5 WATT

SINGLE OUTPUT MODELS

MCH2805S

MCH285R2S

MCH2812S

MCH2815S

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP MAX

MIN

TYP

MAX

MIN

TYP MAX

UNITS

OUTPUT VOLTAGE

1

Tc = 25°C

4.95

5

5.05

5.15

5.2

5.25 11.88

12

12.12 14.85

15

15.15

VDC

Tc = –55°C TO +125°C

4.80

5

5.20

5.00

5.2

5.40 11.52

12

12.48 14.40

15

15.60

OUTPUT CURRENT

V

IN

= 12 to 50 VDC

—

300

0

—

288

0

—

125

0

—

100

mA

OUTPUT POWER

V

IN

= 12 TO 50 VDC

0

—

1.5

0

—

1.5

0

—

1.5

0

—

1.5

W

OUTPUT RIPPLE

10 kHz - 2 MHz

—

45

150

—

45

150

—

50

200

—

35

150

mV p-p

VOLTAGE

Tc = –55°C TO +125°C

—

65

300

—

65

300

—

70

300

—

50

250

LINE REGULATION

V

IN

= 12 TO 50 VDC

—

35

100

—

35

100

—

60

200

—

70

300

mV

Tc = –55°C TO +125°C

—

40

120

—

40

120

—

70

250

—

80

350

LOAD REGULATION

10% TO FULL LOAD

—

350

700

—

350

700

—

600

1300

—

700

1500

Tc = –55°C TO +125°C

—

380

800

—

380

800

—

640

1400

—

760

1600

mV

50% TO FULL

—

100

200

—

100

200

—

145

300

—

165

350

Tc = –55°C TO +125°C

—

115

300

—

115

300

—

160

400

—

185

450

INPUT VOLTAGE

CONTINUOUS

12

28

50

12

28

50

12

28

50

12

28

50

VDC

NO LOAD TO FULL

TRANSIENT 120 ms

0

—

80

0

—

80

0

—

80

0

—

70

V

INPUT CURRENT

NO LOAD

—

5.5

10

—

5.5

10

—

6.0

10

—

6.0

11

Tc = –55°C TO +125°C

—

6.0

11

—

6.0

11

—

6.5

12

—

6.5

12

FULL LOAD

—

70

74

—

70

74

—

68

72

—

68

72

mA

Tc = –55°C TO +125°C

—

73

78

—

73

78

—

70

74

—

70

74

INHIBITED

—

2.3

3.2

—

2.3

3.2

—

2.3

3.2

—

2.3

3.2

Tc = –55°C TO +125°C

—

2.4

3.5

—

2.4

3.5

—

2.4

3.5

—

2.4

3.5

INPUT RIPPLE

10k Hz - 10 MHz

—

100

200

—

100

200

—

100

200

—

100

200

mA p-p

CURRENT

2

Tc = –55°C TO +125°C

—

130

250

—

130

250

—

150

250

—

150

250

EFFICIENCY

Tc = 25°C

72

77

—

72

77

—

74

79

—

74

79

—

%

Tc = –55°C TO +125°C

69

75

—

69

75

—

72

77

—

72

77

—

LOAD FAULT

3, 4

POWER DISSIPATION

—

1.3

2.0

—

1.3

2.0

—

2.0

3.2

—

2.3

3.7

W

Tc = –55°C TO +125°C

—

1.4

2.3

—

1.4

2.3

—

2.2

3.5

—

2.5

4.0

RECOVERY

—

3.0

12

—

3.0

12

—

3.5

15

—

4.0

18

ms

Tc = -–55°C TO +125°C

—

3.5

15

—

3.5

15

—

3.5

20

—

4.0

20

STEP LOAD

50 %–100%– 50% LOAD

RESPONSE

5

TRANSIENT

–400

185

400

–400

185

400

–700

350

700

–700

350

700

mV pk

Tc = –55°C TO +125°C

–500

185

500

–500

185

500

–800

380

800

–800

380

800

RECOVERY

—

125

500

—

125

500

—

130

500

—

140

600

µs

Tc =–55°C TO +125°C

—

125

600

—

125

600

—

130

600

—

180

750

STEP LINE

12 TO 50 TO 12 V

IN

RESPONSE

5

TRANSIENT

–400

170

400

–400

170

400

–900

400

900

–750

400

750

mV pk

Tc = –55°C TO +125°C

–500

180

500

–500

180

500 –1000 400

1000 –850

450

850

RECOVERY

—

0.75

3.0

—

0.75

3.0

—

0.6

2.5

—

0.47

2.0

ms

Tc = –55°C TO +125°C

—

0.75

4.0

—

0.75

4.0

—

0.6

3.0

—

0.5

2.5

START-UP

DELAY

—

7

20

—

7

20

—

7

20

—

7

20

ms

0 TO 28 VDC

Tc = –55°C TO +125°C

—

10

40

—

10

40

—

10

40

—

10

40

OVERSHOOT

—

0

100

—

0

100

—

0

250

—

0

300

mV pk

Tc = –55°C TO +125°C

—

0

150

—

0

150

—

0

350

—

0

450

Input Voltage

• 12 to 50 VDC

Output Power

• 1.5 W

Capacitive Load

• Single output models 200 µF

• Dual output models 100 µF

Lead Soldering Temperature (10 sec per lead)

• 300°C

Storage Temperature Range (Case)

• –65°C to +150°C

Input Voltage Range

• 12 to 50 VDC continuous

• 80 V for 120 msec transient

(70 V for 15 V single and dual models)

Case Operating Temperature (Tc)

• –55°C to +125°C full power

• –55°C to +135°C absolute

Derating Output Power/Current (Tc)

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

Inhibit – TTL Open Collector

• Logic low (output disabled) 0.8 V max

Inhibit pin current 1 mA max

• Referenced to input common

• Logic high (output enabled) open collector

See notes 1, 2, 3, 4, 5, and 6 on the following page.

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

Output Voltage Temperature Coefficient

• 100 ppm/°C typical

Input to Output Capacitance

• 100 to 170 pF typical

Undervoltage Lockout

• 8 V input typical

Current Limit

• 125% of full load typical

Isolation

• 100 megohm minimum at 500 V

Audio Rejection 40 dB, typical

Conversion Frequency (kHz)

• 25°C, 300 min, 370 typ, 450 max

• –55°C to +125°C

270 min, 370 typ, 470 max

Inhibit Pin Voltage (unit enabled)

• 7 to 12 V