SMHF Datasheet, PDF (3/12 Pages) List of Unclassifed Manufacturers – DC/DC CONVERTERS 28 VOLT INPUT

DC/DC CONVERTERS
SMHF SERIES
SINGLE AND DUAL
15 WATT
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
DUAL OUTPUT MODELS
PARAMETER
CONDITIONS
OUTPUT VOLTAGE
+V_OUT
OUTPUT CURRENT¹
OUTPUT POWER¹
–V_OUT
V_IN = 16 to 40 VDC
V_IN = 16 to 40 VDC
OUTPUT RIPPLE
10 kHz - 2 MHz
VOLTAGE ±V_OUT
LINE REGULATION
Tc = –55°C to +125°C
BALANCED +V_OUT
Vin = 16 to 40 VDC
LOAD REGULATION
LOAD –V_OUT
BALANCED +V_OUT
LOAD –V_OUT
CROSS REGULATION² NEGATIVE V_OUT
INPUT VOLTAGE
CONTINUOUS
NO LOAD TO FULL
TRANSIENT 50 msec
INPUT CURRENT
NO LOAD
FULL LOAD
INHIBITED
INPUT RIPPLE
10 kHz - 10 MHz
CURRENT
Tc = –55°C to +125°C
EFFICIENCY
LOAD FAULT
SHORT CIRCUIT³
STEP LOAD RESP.⁵
POWER DISSIPATION
RECOVERY⁴
50% – 100% – 50%
BALANCED LOADS
TRANSIENT ^+VOUT
–V_OUT
RECOVERY⁴
STEP LINE RESP.
± V_OUT
16 – 40 – 40 VDC
TRANSIENT⁶
RECOVERY⁴
START-UP
DELAY
OVERSHOOT⁷
SMHF2805D
MIN
TYP MAX
4.95 5.00 5.05
4.92 5.00 5.08
—
±1.2
1.68
—
—
12
—
60
160
—
100
240
—
5
50
—
—
100
—
20
50
—
—
150
—
6
7.5
16
28
40
—
—
50
—
20
50
—
540
600
—
6
12
—
30
80
—
60
120
75
77
—
—
3
8
—
7.5
30
–600
200
600
–600
150
600
—
150
500
–800
600
800
—
0.8
1.2
—
12
30
0
100
500
SMHF2812D
MIN
11.88
TYP
12.00
MAX
12.12
11.82 12.00 1218
—
±0.625 0.875
—
—
15
—
70
175
—
100
275
—
5
50
—
—
100
—
20
50
—
—
150
—
3
6
16
28
40
—
—
50
—
25
50
—
645
754
—
5
12
—
40
80
—
55
120
74
81
—
—
3
6
—
7.5
50
–600
300
600
–600
100
500
—
200
500
–750
550
750
—
0.8
1.2
—
12
25
0
200
500
SMHF2815D
MIN
14.85
TYP
15.00
MAX
15.15
14.78 15.00 15.23
— ±0.500 0.700
—
—
15
—
70
175
—
100
275
—
5
50
—
—
100
—
20
50
—
—
150
—
3
6
16
28
40
—
—
50
—
25
50
—
638
754
—
5
12
—
40
80
—
55
120
74
82
—
—
3
6
—
7.5
50
–600 300
600
–600 100
600
—
200
600
–750 550
750
—
0.8
1.2
—
12
25
0
200
500
UNITS
VDC
A
W
mV p-p
mV
mV
%
VDC
V
mA
mA p-p
%
W
ms
mV pk
µs
mV pk
ms
ms
mV pk
Notes
1. Up to 70% of the total output power is available from either output providing
the opposite output is simultaneously carrying 30% of the total output
power. Each output must carry a minimum of 30% of the total output
power in order to maintain regulation on the negative outputs.
2. Effect on –Vout for the following conditions, percentages are of total power:
+Po = 50% to 10% and –Po = 50%
+Po = 50% and –Po = 50% to 10%
3. Indefinite short circuit protection not guaranteed above 125°C (case)
4. Recovery time is measured from application of the transient to point at
which Vout is within regulation.
5. Response of either output with the opposite output held at half of the total
output power.
6. Input step transition time >10µs.
7. Input step transition time <100µs.
35