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SMHF282R5S Datasheet, PDF (6/15 Pages) Interpoint Corporation Company – Fully qualified to Class H or K -55°C to +125°C operation 16 to 40 VDC input
Crane Aerospace & Electronics Power Solutions
SMHF Single and Dual DC/DC Converters
28 Volt input – 15 Watt
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
single output models
PARAMETER
CONDITIONS
OUTPUT VOLTAGE
TC = 25°C
OUTPUT CURRENT
Vin = 16 to 40 VDC
OUTPUT POWER
Vin = 16 to 40 VDC
OUTPUT RIPPLE
10 kHz - 2 MHz
TC = -55°C TO +125°C
LINE REGULATION
VIN = 16 TO 40 VDC
LOAD REGULATION
NO LOAD TO FULL
INPUT VOLTAGE
NO LOAD TO FULL
CONTINUOUS
TRANSIENT 120 ms1
INPUT CURRENT
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT2
STEP LOAD
RESPONSE
STEP LINE
RESPONSE1
START-UP
0 TO 28 VDC
CAPACITIVE LOAD
NO LOAD
INHIBITED
10 kHz - 10 MHz
TC = -55°C TO +125°C
TC = 25°C
SHORT CIRCUIT
POWER DISSIPATION
RECOVERY1, 3
50% - 100% - 50%
TRANSIENT4
RECOVERY3
16 - 40 -16 VDC
TRANSIENT4
RECOVERY3
DELAY
OVERSHOOT1, 4
TC = 25°C
smhf282r5s smhf283r3s smhf2805s
MINTYP MAX MINTYP MAX MINTYP MAX
2.475 2.5 2.525 3.27 3.30 3.33 4.95 5.00 5.05
— — 2.4 — — 2.4 — — 2.4
0
—
60
—
80
—
12
— 15 50 — 60 160 — 30 80
— 25 50 — 80 240 — 150 240
—
5
50 — 5 100 — 5 100
— 28 50 — 20 50 — 20 50
16 28 40 16 28 40 16 28 40
0
—
50 0
—
50 0
—
50
— 20 40 — 25 65 — 25 40
—
6
12 —
5
12 —
5
12
— 30 50 — 45 80 — 35 80
— — 50 — — 120 — — 120
65 67 — 68 73 — 73 75 —
—
3
6—
5
8—
3.5
8
— 7.5 30 — 7.5 30 — 7.5 30
-200 50 200 -400 150 400 -500 150 500
— 50 270 — 150 300 — 150 300
-800 550 800 -800 550 800 -800 550 800
— 0.8 1.2 — 0.8 1.2 — 0.8 1.2
— 10 20 — 10 25 — 10 25
— — 250 — 200 300 — 100 600
—
—
— — — 300 — — 300
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
µF
Notes
1. Guaranteed by design, not tested.
2. Indefinite short circuit protection not guaranteed above 125°C (case)
3. Recovery time is measured from application of the transient
to the point at which Vout is within regulation.
4. Step transition time >10µs.
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Rev D - 20070404