SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
V
IN
100% to 10%
10% to 100%
+V
OUT
P
= 12W
OUT
V
IN
V
OUT
1 ms/div
16V TO 40V
SMHF2815D STEP LINE RESPONSE
2 ms/div
200µs/div
10% 100%
SMHF2805S TURN-ON INTO FULL LOAD
SMHF2805S STEP LOAD RESPONSE
FIGURE 13
FIGURE 14
FIGURE 12
P
= 7.5 W
100% to 50%
P = 7.5 W
O
O
–V
OUT
OUT
100% to 20%
+V
20% to 100%
V
IN
50% to 100%
50µs/div
50% 100%
50µs/div
20% 100%
STEP LOAD RESPONSE
2 ms/div
SMHF+2815D V
OUT
SMHF2815D TURN-ON INTO FULL LOAD
FIGURE 15
FIGURE 16
FIGURE 17
10
8
2805D
2812D
10
5
16
6
SMHF2805S&D
4
COND A
COND B
15
2
2812D
2815D
0
2815D
0
14
–2
–4
–6
–8
–10
SMHF2812S&D
SMHF2815S&D
2812D
2805D
–5
–10
13
2805D
12
0
20
40
60
80
100
10
11
12
13
14
15
10
20
30
40
50
POSITIVE OUTPUT LOAD (% OF TOTAL LOAD)
–V
OUTPUT POWER (Watts)
50 mV DROP
LOW LINE DROPOUT VS. LOAD
OUTPUT LOAD (%)
WITH SHIFT IN LOAD BALANCE
OUT CROSS REGULATION
COND. A: 50% LOAD +V; 50% to 10% –V
COND. B: 50% LOAD –V; 50% to 10% +V
SMHF2805D/SMHF2812D/SMHF2815D
CROSS REGULATION
FIGURE 18
FIGURE 19
FIGURE 20
39
CRANE [ Crane Aerospace & Electronics. ]
