Crane Aerospace & Electronics Power Solutions
SMFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
90
85
19V
90
85
19V
90
85
19V
Efficiency (%)
Efficiency (%)
Efficiency (%)
80
75
70
65
60
10
30
28V
40V
80
75
70
65
28V
80
75
70
65
40V
28V
40V
Output (Watts)
50
70
90
60
10
30
50
70
90
60
10
30
50
70
90 100
SMFLHP2805S & SMFLHP2805D
Efficiency
Output Power (Watts)
Output Power (Watts)
SMFLHP2812S & SMFLHP2812D
Efficiency
SMFLHP2815S & SMFLHP2815D
Efficiency
F
IGURE
4
F
IGURE
5
F
IGURE
6
0.
100mV/div.
100% to 50%
20.
Attenuation (dB)
40.
60.
80.
20V/div.
100mV/div.
Vout
Vin
50% to 100%
100.
0.1
1
10
100
Frequency (kHz)
50
µs/div
19 to 40 V
1ms/div
SMFLHP2805S Step Load Response
SMFLHP Series Audio Rejection
SMFLHP2805S Step Line Response
F
IGURE
7
F
IGURE
8
F
IGURE
9
20V/div.
20V/div.
50% to 100%
Vin
+Vout
Vin
1V/div.
Vout
100mV/div.
–Vout
200mV/div.
100% to 50%
1ms/div
No Load
50
µs/div
19 to 40 V
1ms/div
SMFLHP2815D Step Load Response
SMFLHP2805S Turn On Response
SMFLHP2815D Step Line Response
F
IGURE
10
F
IGURE
11
F
IGURE
12
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Rev H - 20071221
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