MCH/MGH Single and Dual DC/DC Converters

Crane Aerospace & Electronics Power Solutions

Page 7 of 18

Rev E - 20060508

www.craneae.com

28 VOLT INPUT – 1.5 WATT

MCH SINGLE OUTPUT MODELS

MCH2805S

MCH2812S

MCH2815S

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP MAX

MIN

TYP

MAX

UNITS

OUTPUT VOLTAGE

2

Tc = 25°C

4.95

5

5.05 11.88

12

12.12 14.85

15

15.15

VDC

Tc = –55°C TO +125°C

4.80

5

5.20 11.52

12

12.48 14.40

15

15.60

OUTPUT CURRENT

V

IN

= 12 to 50 VDC

—

—

300

—

—

125

—

—

100

mA

OUTPUT POWER

V

IN

= 12 TO 50 VDC

0

—

1.5

0

—

1.5

0

—

1.5

W

OUTPUT RIPPLE

10 kHz - 2 MHz

—

45

150

—

50

200

—

35

150

mV p-p

VOLTAGE

Tc = –55°C TO +125°C

—

65

300

—

70

300

—

50

250

LINE REGULATION

V

IN

= 12 TO 50 VDC

—

35

120

—

60

250

—

70

350

mV

Tc = –55°C TO +125°C

—

40

120

—

70

250

—

80

350

LOAD REGULATION

10% TO FULL LOAD

—

350

800

—

600

1400

—

700

1600

Tc = –55°C TO +125°C

—

380

800

—

640

1400

—

760

1600

mV

50% TO FULL

1

—

100

200

—

145

300

—

165

350

Tc = –55°C TO +125°C

—

115

300

—

160

400

—

185

450

INPUT VOLTAGE

CONTINUOUS

12

28

50

12

28

50

12

28

50

VDC

NO LOAD TO FULL

TRANSIENT

0

—

80

0

—

80

0

—

70

V

INPUT CURRENT

NO LOAD

—

5.5

11

—

6.0

12

—

6.0

12

Tc = –55°C TO +125°C

—

6.0

11

—

6.5

12

—

6.5

12

mA

INHIBITED

—

2.3

3.5

—

2.3

3.5

—

2.3

3.5

Tc = –55°C TO +125°C

—

2.4

3.5

—

2.4

3.5

—

2.4

3.5

INPUT RIPPLE

10k Hz - 10 MHz

—

100

200

—

100

200

—

100

200

mA p-p

CURRENT

3

Tc = –55°C TO +125°C

—

130

250

—

150

250

—

150

250

EFFICIENCY

Tc = 25°C

72

77

—

74

79

—

74

79

—

%

Tc = –55°C TO +125°C

69

75

—

72

77

—

72

77

—

LOAD FAULT

4,5

POWER DISSIPATION

—

1.3

2.0

—

2.0

3.2

—

2.3

3.7

W

Tc = –55°C TO +125°C

—

1.4

2.3

—

2.2

3.5

—

2.5

4.0

RECOVERY

1

—

3.0

15

—

3.5

20

—

4.0

20

ms

Tc = -–55°C TO +125°C

—

3.5

15

—

3.5

20

—

4.0

20

STEP LOAD

50 %–100%– 50% LOAD

RESPONSE

6

TRANSIENT

–500

185

500

–700

350

700

–700

350

700

mV pk

Tc = –55°C TO +125°C

–500

185

500

–800

380

800

–800

380

800

RECOVERY

—

125

500

—

130

500

—

140

600

μs

Tc =–55°C TO +125°C

—

125

600

—

130

600

—

180

750

STEP LINE

12 TO 50 TO 12 V

IN

RESPONSE

6

TRANSIENT

1

–500

170

500 –1000 400

1000 –850

400

850

mV pk

Tc = –55°C TO +125°C

–500

180

500 –1000 400

1000 –850

450

850

RECOVERY

1

—

0.75

4.0

—

0.6

3.0

—

0.47

2.5

ms

Tc = –55°C TO +125°C

—

0.75

4.0

—

0.6

3.0

—

0.5

2.5

START-UP

DELAY

—

7

40

—

7

40

—

7

40

ms

Tc = –55°C TO +125°C

—

10

40

—

10

40

—

10

40

OVERSHOOT

1

—

0

150

—

0

350

—

0

450

mV pk

Tc = –55°C TO +125°C

—

0

150

—

0

350

—

0

450

CAPACITIVE LOAD

1

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

Notes:

1. Guaranteed by design, not tested.

2. Specified at 50% total P

out

.

3. Lin = 2 μH.

4. Maximum duration of short circuit: 25°C-– 90 seconds, 125°C – 30 seconds.

5. Load fault is a short circuit (<50 mohms). Recovery is into resistive full load.

6. Transition ≥ 10 μs. Recovery = time to settle to within 1% of Vout final value.

7. Max. spec indicates 80% of the converter’s total power, available from either

output.