MCH/MGH Single and Dual DC/DC Converters

Crane Aerospace & Electronics Power Solutions

Page 9 of 18

Rev E - 20060508

www.craneae.com

28 VOLT INPUT – 1.5 WATT

Notes:

1. Guaranteed by design, not tested.

2. Specified at 50% balanced load.

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,

with one output shorted at a time.

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.

8. Specification applies to both + and – Vout.

9. Although no minimum load is required, at no load the output voltage may

increase up to 15%.

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

MCH DUAL OUTPUT MODELS

MCH2805D

MCH2812D

MCH2815D

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

7

V

IN

= 12 TO 50 VDC

0

±150

240

0

±62.5

100

0

±50

80

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

—

35

150

—

35

150

—

30

150

VOLTAGE +V

OUT

Tc = –55°C TO +125°C

—

50

250

—

40

250

—

35

250

mV p-p

–V

OUT

10 kHz - 2 MHz

—

35

150

—

35

150

—

30

150

Tc = –55°C TO +125°C

—

50

250

—

40

250

—

35

250

LINE REGULATION

8

V

IN

= 12 TO 50 VDC

—

10

50

—

100

300

—

165

500

mV

Tc = –55°C TO +125°C

—

20

100

—

110

400

—

180

650

LOAD REGULATION

9

10% TO FULL

—

300

600

—

550

1100

—

600

1300

±V

OUT

–55°C TO +125°C

—

350

700

—

570

1200

—

630

1400

mV

50% TO FULL

1

—

80

200

—

115

250

—

125

300

–55°C TO +125°C

—

100

300

—

130

350

—

135

400

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

—

5.0

10

—

7.5

13

—

7.5

13

Tc = –55°C TO +125°C

—

6.0

12

—

8.0

14

—

8.0

14

uF

INHIBITED

—

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

INPUT RIPPLE

3

10 kHz - 10 MHz

—

100

200

—

115

200

—

90

200

mA p-p

CURRENT

Tc = –55°C TO +125°C

—

130

250

—

150

250

—

120

250

EFFICIENCY

Tc = 25°C

73

77

—

73

77

—

72

76

—

%

Tc = –55°C TO +125°C

70

75

—

70

75

—

69

74

—

LOAD FAULT

4,5

POWER DISSIPATION

—

1.4

2.2

—

2.5

3.8

—

2.7

4.1

W

Tc = –55°C TO +125°C

—

1.6

2.5

—

2.7

4.2

—

3.0

4.5

RECOVERY

1

—

3.7

15

—

3.2

15

—

4.0

15

ms

Tc = –55°C TO +125°C

—

3.8

20

—

3.2

20

—

4.0

20

STEP LOAD

50 %–100%– 50% LOAD

RESPONSE

OUT

TRANSIENT

–300

130

300

–600

250

600

–600

250

600

mV pk

Tc = –55°C TO +125°C

–400

140

400

–700

260

700

–700

270

700

RECOVERY

—

100

400

—

165

700

—

50

200

μs

–55°C TO +125°C

—

100

500

—

165

800

—

50

300

STEP LINE

12 TO 50 TO 12 V

IN

RESPONSE

OUT

TRANSIENT

1

–250

125

250

–500

240

500

–500

220

500

mV pk

Tc = –55°C TO +125°C

–300

130

300

–600

250

600

–600

230

600

RECOVERY

1

—

0.6

2.5

—

0.9

3.0

—

0.6

3.0

ms

Tc = –55°C TO +125°C

—

0.6

3.0

—

0.9

4.0

—

0.7

4.0

START–UP

DELAY

—

8

25

—

8

25

—

8

25

ms

0 TO 28 VDC, ± V

OUT

Tc = –55°C TO +125°C

—

10

45

—

10

45

—

10

45

OVERSHOOT

1

—

0

100

—

0

250

—

0

750

mV pk

Tc = –55°C TO +125°C

—

0

150

—

0

350

—

0

900

CAPACITIVE LOAD

uF