MCH SERIES
1.5 WATT
DC/DC CONVERTERS
TYPICAL PERFORMANCE CURVES: Tc = 25°C, full load, Vin = 28 VDC, unless otherwise specified.
4
4
5 V
–5 V
2
0
2
12 V
15 V
–15 V
–12 V
V
IN
0
+15 V
+12 V
+5 V
0 V for –V
OUT
-2
–V
+VOUT
OUT
-2
-4
-4
0 V for +
V
OUT
90/10 70/30
OUTPUT LOAD (%)
30/70 10/90
DUAL ISOLATED
50/50
0
5
10 15 20
25 30 35 40 45
MCH2815D
10
20
40
50
30
TIME (ms)
OUTPUT LOAD (%)
DUAL ISOLATED
90% TO 10% LOAD ON +V
10% TO 90% LOAD ON –V
CROSS REGULATION
Also representative of MCH2812S & D and MCH2815S
TURN-ON INTO FULL LOAD
50% LOAD +V; 50% TO 10% LOAD –V
AND
50% LOAD –V; 50% TO 10% LOAD +V
CROSS REGULATION
FIGURE 14
FIGURE 12
FIGURE 13
1.8
1.6
90
70
50
30
10
120
100
80
15 V
SINGLE
& DUAL
NARROWBAND
TRIP POINT 125%
12 V
SINGLE
& DUAL
1.4
1.2
60
5 V
DUAL
SAFE OPERATING AREA
40
20
0
5 V
SINGLE
1.0
0.8
9
10
.015
0.1
1
10
50
11
12
20
40
60
80
100 120 140 160
0
ALL MODELS
INPUT VOLTAGE
FREQUENCY (MHz)
% OF FULL LOAD
MCH FILTERED WITH FMSA
LOW LINE DROPOUT
OUTPUT VOLTAGE vs. OUTPUT LOAD
FIGURE 15
FIGURE 16
FIGURE 17
6
CRANE [ Crane Aerospace & Electronics. ]
