Datasheet
Efficiency (%)
Load Current (Amps)
75
65
70
85
80
90
23455.54.53.52.51.51 66.5
100
95
Power Dissipation
(V
IN
= 48V)
V
IN
= 48V
V
IN
= 75V
V
IN
= 36V
UCH-15/6.7-D48 Efficiency and Power Dissipation
vs Line Voltage and Load Current @25˚C
Power Dissipation (Watts)
0
4
2
6
10
14
8
12
Output Current (Amps)
Ambient Temperature (
°
C)
400 lfm200 lfm
30 40 50 60 70 80
4
5
2
3
1
0
7
6
300 lfm
100 lfm
UCH-15/6.7-D48 Maximum Current Temperature Derating (at sea level)
No baseplate, VIN = 48V, transverse airflow
Output Current (Amps)
Ambient Temperature (
°
C)
400 lfm200 lfm
30 40 50 60 70 80
12.5
11.5
19.5
9.5
8.5
7.5
6.5
300 lfm
100 lfm
UCH-12/12.5-D48 Maximum Current Temperature Derating (at sea level)
No baseplate, VIN = 48V, transverse airflow
Efficiency (%)
Load Current (Amps)
75
70
85
80
90
5643789 10 11 12
95
65
Power Dissipation
(V
IN
= 48V)
V
IN
= 75V
V
IN
= 48VV
IN
= 36V
UCH-12/12.5-D48 Efficiency and Power Dissipation
vs Line Voltage and Load Current @25˚C
Power Dissipation (Watts)
6
10
4
8
12
16
20
14
18
TYPICAL PERFORMANCE DATA
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Single Output UCH Models
Isolated, “Half-Brick”
1.8−15V Output DC/DC Converters
MDC_UCH Models.C01 Page 12 of 18