Datasheet

UEI25 Series
Single Output Isolated 25-Watt DC/DC Converters
MDC_UEI25W.B09 Page 13 of 24
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UEI25-120-D48 PERFORMANCE DATA
Maximum Current Temperature Derating @sea level
(VIN = 48V, airfl ow is from pin 1 to pin 3)
Maximum Current Temperature Derating @sea level
(VIN = 36V, airfl ow is from pin 1 to pin 3)
Power Dissipation vs. Load Current @ 25°C
65
70
75
80
85
2
2.
0
2
5
2
.
05
2
.
0
75
2
.1
2.12
5
2
.
1
5
2.17
5
2
.2
A
m
A
A
b
i
e
n
t
t
e
m
p
e
r
a
t
u
r
e
(
°C
)
O
u
t
p
u
t
Cu
rr
e
nt
(
A
(
(
m
ps
)
0.33 m/s
(
65
L
F
M)
0
.5 m
/
s
(
100
L
F
M)
1
.0 m/s
(
200
L
F
M)
65
70
7
5
80
85
2
2
.
02
5
2
.
05
2.
0
7
5
2
.
1
2
.
12
5
2
.1
5
2.17
5
2
.
2
A
m
A
A
b
i
e
n
t
t
e
m
p
e
r
a
t
u
r
e
(
°
C)
O
u
t
p
u
t
C
urrent
(
A
(
(
m
ps
)
0.33 m/s (65
L
F
M)
0.5 m
/
s
(
100
L
F
M)
1.0 m
/
s
(
200
L
F
M)
65
70
75
80
85
1.9
1.
95
2.
05
2
.
0
2
.1
2.1
5
2
.2
2.2
5
A
m
A
A
b
i
e
n
t
t
e
m
p
e
r
a
t
u
r
e
(
°
C)
O
u
t
p
u
t
C
urrent
(
A
(
(
mps
)
0.33 m
/
s
(
65
L
F
M)
0.5 m/s
(
100
L
F
M)
1
.0 m/s
(
200
L
F
M)
(
1.5 m/s (300
L
F
)
M)
0
.
4
0
.
6
0
.
8
0
.
9
1
.
1
1
.
3
1
.
4
1
.
6
1
.
8
1
.
9
2
.
1
0
.
46
0
.
96
1
.
46
1
.
96
2
.
46
2
.
96
3
.
46
3
.
96
4
.
46
V
in =
36
V
V
in = 4
8
V
V
in =
60
V
Vi
n = 75
V
L
o
a
d Current
(
A
(
(
m
ps)
L
o
ss
(
Watts)
(
(
Effi ciency vs. Line Voltage and Load Current @ 25°C
0.4 0.6 0.8 0.9 1.1 1.3 1.4 1.6 1.8 1.9 2.1
78
79
80
81
82
83
84
85
86
87
88
89
Vin = 36V
Vin = 48V
Vin = 60V
Vin = 75V
Load Current (Amps)
Efficiency (%)
Maximum Current Temperature Derating @sea level
(V
IN = 60V, airfl ow is from pin 1 to pin 3)
Thermal image with "hot spot" at full load current with 65°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.