Datasheet

UEI25 Series
Single Output Isolated 25-Watt DC/DC Converters
MDC_UEI25W.B09 Page 11 of 24
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UEI25-050-D48 PERFORMANCE DATA
Maximum Current Temperature Derating @sea level
(VIN = 36V, 48V, 60V, and 75V, airfl ow is from pin 1 to pin 3)
Power Dissipation vs. Load Current @ 25°C
4
.5
4
.
6
4
.7
4
.
8
4
.
9
5
.
0
5
.
1
30
35
40
45
50
55
60
65
70
75
80
85
A
m
A
A
b
i
e
n
t
t
e
m
p
e
r
a
t
u
r
e
(
°C
)
0.33 to 2.0 m/s
(
65 to 400
L
F
M)
O
u
t
p
u
t
Cu
rr
e
nt
(
A
(
(
m
ps
)
1
.
0
1
.
4
1
.
8
2
.
2
2
.
6
3
.
0
3
.
4
3
.
8
4
.
2
4
.
6
5
.
0
0
.
50
1
.
00
1
.
50
2.
00
2
.5
0
3
.
00
3
.
50
V
in = 36V
Vi
n = 48
V
Vi
n = 60
V
V
in = 7
5
V
L
o
a
d
C
urrent
(
A
(
(
m
ps
)
L
o
ss
(
Watts)
(
(
Effi ciency vs. Line Voltage and Load Current @ 25°C
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
1.0 1.4 1.8 2.2 2.6 3.0 3.4 3.8 4.2 4.6 5.0
Vin = 36V
Vin = 48V
Vin = 60V
Vin = 75V
Load Current (Amps)
Efficiency (%)
Thermal image with "hot spot" at full load current with 80°C ambient, air fl owing at
minimal rate of 65 LFM. Air is fl owing across the converter from +Vo to -Vo at 48V input.
Identifi able and recommended maximum value to be verifi ed in application.