triPle outPut Model – MHF+28515t
5 2 (Main)
±15 (auXiliarieS)
unitS
paraMeter
COnDitiOnS
Min
tyP
MaX
Min
tyP
MaX
Output VOltage
VOut
4.85
5.00
5.15 14.40 15.00
15.60
vdC
Output Current 3
—
1.5
0
±0.250 0.333 1
a
tOtal
—
1.5
—
0.500
Output pOwer 9
—
7.5
—
±2.5
5 1
W
Vin = 16 tO 48 VDC
tOtal
—
7.5
Output ripple
10 kHz - 2 MHz
—
20
90
—
±30
±225
mv p-p
line regulatiOn
Vin= 16, 48 VDC
—
25
75
—
±150
±300
mv
lOaD regulatiOn 5
nO lOaD tO Full
Vin = 28 VDC
—
25
75
—
±150
±300
mv
CrOSS regulatiOn 6
tC = 25°C
eFFeCt On negatiVe
auXiliary Output
—
5.0
%
input VOltage
COntinuOuS
16
28
48
—
vdC
tranSient 1 120 ms
—
80
—
v
input Current
nO lOaD
—
30
45
—
ma
inHiBiteD
—
3
5
—
input ripple Current
10 kHz - 20 MHz
—
20
50
—
ma p-p
eFFiCienCy
72
76
—
%
lOaD Fault 7, 9
POWER DiSSiPATiOn
SHort CirCuit
—
12
—
±12
W
reCOVery 1
—
25
—
25
ms
Step lOaD reSpOnSe 8, 9
tranSient
—
±850
—
±950
mv pk
reCOVery
—
5
8
—
2
3
ms
Step line
reSpOnSe 1, 9, 10
16 - 48 - 16 Vin
tranSient
—
±800
—
±800
mv pk
reCOVery
—
5
—
5
ms
Start-up
Delay
nO lOaD anD Full
—
10
25
—
10
25
ms
OVerSHOOt 1
—
500
—
±500
mv pk
notes
1. guaranteed by design, not tested.
2. if running with external sync, at temperature extremes vout main may be
a minimum of 4.80 vdC to a maximum of 5.20 vdC.
3. the sum of the 15 volt auxiliary output currents may not exceed 500 ma.
4. the sum of the auxiliary output power may not exceed 7.5 watts. up to 5
watts (approximately 66%) of the total auxiliary output power is available
from either output providing the opposite output is simultaneously carrying
2.5 watts (approximately 33%) of the total auxiliary power.
5. load regulation for the +5 is specified at 0.0 to 1.5 a with both auxiliaries
held at 3.75 W (250 mA). load regulation for the auxiliary. is specified as
both auxiliaries from 0.0 to 3.75 W (250 mA) at the same time with the +5
held at 1.5 a.
6. Cross regulation only occurs between the two auxiliaries and is measured
on –aux. +5 is held constant at 1.0 a. Cross regulation is specified for two
conditions:
negative aux.= 3.76 W; positive aux.= 0.37 W to 3.76 W.
negative aux. = 0.37 W to 3.76 W; positive aux. = 3.76 W.
7. load fault = < 0.100 Ω.
8. Step transition time > 10 s.
9. time to settle to within 1% of vout final value.
10. Step transition time between 2 and 10 s.
electrical Characteristics: -55° to +125°C tC, 28 vdC vin, 100% load, free run, unless otherwise specified.
www.interpoint.com
Page 14 of 23
Crane aerospace & electronics Power solutions
MHF+ Single, dual and triple dC/dC Converters
28 VOlT inPuT – 15 WATT
MHF+ rev l - 20091113