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 DUAL OUTPUT MODELS
PARAMETER
CONDITIONS
2
Tc = 25°C
OUTPUT VOLTAGE
Tc = –55°C TO +125°C
OUTPUT CURRENT
7
V = 12 TO 50 VDC
IN
IN
MCH2805D
MIN TYP MAX
±4.95 ±5
±5.05
±4.80 ±5
±5.20
0
±150
240
0
—
—
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
73
70
—
—
—
—
–300
–400
—
—
–250
–300
—
—
—
—
—
—
—
35
50
35
50
10
20
300
350
80
100
28
—
5.0
6.0
2.3
2.4
100
130
77
75
1.4
1.6
3.7
3.8
130
140
100
100
125
130
0.6
0.6
8
10
0
0
1.5
150
250
150
250
50
100
600
700
200
300
50
80
10
12
3.2
3.5
200
250
—
—
2.2
2.5
15
20
300
400
400
500
250
300
2.5
3.0
25
45
100
150
MCH2812D
MCH2815D
MIN TYP MAX
MIN TYP MAX
±11.88 ±12 ±12.12 ±14.85 ±15 ±15.15
±11.52 ±12 ±12.48 ±14.40 ±15 ±15.60
0
±62.5 100
0
±50
80
0
—
—
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
73
70
—
—
—
—
–600
–700
—
—
–500
–600
—
—
—
—
—
—
—
35
40
35
40
100
110
550
570
115
130
28
—
7.5
8.0
2.3
2.4
115
150
77
75
2.5
2.7
3.2
3.2
250
260
165
165
240
250
0.9
0.9
8
10
0
0
1.5
150
250
150
250
300
400
1100
1200
250
350
50
80
13
14
3.2
3.5
200
250
—
—
3.8
4.2
15
20
600
700
700
800
500
600
3.0
4.0
25
45
250
350
0
—
—
—
—
—
—
—
—
—
—
12
0
—
—
—
—
—
—
72
69
—
—
—
—
–600
–700
—
—
–500
–600
—
—
—
—
—
—
—
30
35
30
35
165
180
600
630
125
135
28
—
7.5
8.0
2.3
2.4
90
120
76
74
2.7
3.0
4.0
4.0
250
270
50
50
220
230
0.6
0.7
8
10
0
0
1.5
150
250
150
250
500
650
1300
1400
300
400
50
70
13
14
3.2
3.5
200
250
—
—
4.1
4.5
15
20
600
700
200
300
500
600
3.0
4.0
25
45
750
900
UNITS
VDC
mA
W
OUTPUT POWER
OUTPUT RIPPLE
VOLTAGE +V
–V
V
= 12 TO 50 VDC
OUT
10 kHz - 2 MHz
Tc = –55°C TO +125°C
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
–55°C TO +125°C
50% TO FULL
1
–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
10 kHz - 10 MHz
Tc = –55°C TO +125°C
Tc = 25°C
Tc = –55°C TO +125°C
mV p-p
OUT
8
9
LINE REGULATION
mV
LOAD REGULATION
±V
OUT
mV
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
VDC
V
uF
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
3
mA p-p
%
W
ms
POWER DISSIPATION
Tc = –55°C TO +125°C
1
RECOVERY
Tc = –55°C TO +125°C
STEP LOAD
50 %–100%– 50% LOAD
6
TRANSIENT
RESPONSE ± V
OUT
Tc = –55°C TO +125°C
RECOVERY
–55°C TO +125°C
STEP LINE
12 TO 50 TO 12 V
IN
RESPONSE
6
± V
OUT
TRANSIENT
1
Tc = –55°C TO +125°C
1
RECOVERY
Tc = –55°C TO +125°C
START–UP
DELAY
0 TO 28 VDC, ± V
OUT
Tc = –55°C TO +125°C
OVERSHOOT
1
Tc = –55°C TO +125°C
CAPACITIVE LOAD
4,5
mV pk
μs
mV pk
ms
ms
mV pk
uF
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%.
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