Crane Aerospace & Electronics Power Solutions
MCH/MGH Single and Dual DC/DC Converters
28 VOLT INPUT – 1.5 WATT
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
MCH SINGLE OUTPUT MODELS
PARAMETER
CONDITIONS
2
OUTPUT VOLTAGE
Tc = 25°C
Tc = –55°C TO +125°C
OUTPUT CURRENT
V = 12 to 50 VDC
IN
MCH2805S
MCH2812S
MCH2815S
MIN TYP MAX MIN TYP MAX MIN TYP MAX
4.95
5
5.05 11.88 12 12.12 14.85 15 15.15
4.80
5
5.20 11.52 12 12.48 14.40 15 15.60
—
—
300
—
—
125
—
—
100
0
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
72
69
—
—
—
—
–500
–500
—
—
–500
–500
—
—
—
—
—
—
—
45
65
35
40
350
380
100
115
28
—
5.5
6.0
2.3
2.4
100
130
77
75
1.3
1.4
3.0
3.5
185
185
125
125
170
180
0.75
0.75
7
10
0
0
1.5
150
300
120
120
800
800
200
300
50
80
11
11
3.5
3.5
200
250
—
—
2.0
2.3
15
15
500
500
500
600
0
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
74
72
—
—
—
—
–700
–800
—
—
—
1.5
0
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
74
72
—
—
—
—
–700
–800
—
—
—
35
50
70
80
700
760
165
185
28
—
6.0
6.5
2.3
2.4
100
150
79
77
2.3
2.5
4.0
4.0
350
380
140
180
1.5
150
250
350
350
1600
1600
350
450
50
70
12
12
3.5
3.5
200
250
—
—
3.7
4.0
20
20
700
800
600
750
850
850
2.5
2.5
40
40
450
450
UNITS
VDC
mA
W
mV p-p
mV
OUTPUT POWER
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
LOAD REGULATION
V
IN
= 12 TO 50 VDC
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
INPUT RIPPLE
CURRENT
3
EFFICIENCY
LOAD FAULT
4,5
STEP LOAD
RESPONSE
6
STEP LINE
RESPONSE
6
START-UP
10 kHz - 2 MHz
Tc = –55°C TO +125°C
V = 12 TO 50 VDC
IN
Tc = –55°C TO +125°C
10% TO FULL LOAD
Tc = –55°C TO +125°C
50% TO FULL
1
Tc = –55°C TO +125°C
CONTINUOUS
1
TRANSIENT 120 ms
NO LOAD
Tc = –55°C TO +125°C
INHIBITED
Tc = –55°C TO +125°C
10k Hz - 10 MHz
Tc = –55°C TO +125°C
Tc = 25°C
Tc = –55°C TO +125°C
POWER DISSIPATION
Tc = –55°C TO +125°C
RECOVERY
1
Tc = -–55°C TO +125°C
50 %–100%– 50% LOAD
TRANSIENT
Tc = –55°C TO +125°C
RECOVERY
Tc =–55°C TO +125°C
12 TO 50 TO 12 V
IN
TRANSIENT
1
Tc = –55°C TO +125°C
RECOVERY
1
Tc = –55°C TO +125°C
DELAY
Tc = –55°C TO +125°C
OVERSHOOT
1
Tc = –55°C TO +125°C
50
200
70
300
60
250
70
250
600 1400
640 1400
145 300
160 400
28
50
—
80
6.0
12
6.5
12
2.3
3.5
2.4
3.5
100 200
150 250
79
—
77
—
2.0
3.2
2.2
3.5
3.5
20
3.5
20
350
380
130
130
700
800
500
600
mV
VDC
V
mA
mA p-p
%
W
ms
mV pk
μs
500 –1000 400 1000 –850 400
500 –1000 400 1000 –850 450
4.0
—
0.6
3.0
— 0.47
4.0
—
0.6
3.0
—
0.5
40
—
7
40
—
7
40
—
10
40
—
10
150
—
0
350
—
0
150
—
0
350
—
0
mV pk
ms
ms
mV pk
CAPACITIVE LOAD
1
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.
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Rev E - 20060508
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