Datasheet

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TYPICAL PERFORMANCE DATA
UQQ Series
Wide Input Range Single Output DC-DC Converters
MDC_UQQ.D05 Page 7 of 18
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51110
%FFICIENCYVS,INE6OLTAGEAND,OAD#URRENT #
,OAD#URRENT!MPS
%FFICIENCY
          
6
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6
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65
70
75
80
85
90
1 2 3 4 5 6 7 8 9 1011121314151617181920
V
IN
= 18V
V
IN
= 24V
V
IN
= 36V
V
IN
= 48V
V
IN
= 60V
V
IN
= 75V
UQQ-5/20-Q48P
Efficiency vs. Line Voltage and Load Current @ 25°C
Load Current (Amps)
Efficiency (%)
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S
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Output Current (Amps)
Ambient Temperature (
°
C)
–40 25 30 35 40 45 50 55 60 65 70 75 80 85
17
16
15
14
13
12
11
400 lfm
200 lfm
300 lfm
100 lfm
Natural Convection
UQQ-5/17-Q12P Maximum Current Temperature Derating
With baseplate, VIN = 12V (transverse air flow at sea level)
11
12
13
14
15
16
17
18
19
20
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
400 lfm
200 lfm
300 lfm
100 lfm
Natural Convection
UQQ-5/20-Q48 Maximum Current Temperature Derating at sea level
(VIN = 48V, with baseplate, transverse airflow)
Output Current (Amps)
Ambient Temperature (
°
C)
Output Current (Amps)
Ambient Temperature (
°
C)
–40 25 30 35 40 45 50 55 60 65 70 75 80 85
17
16
15
14
13
12
11
400 lfm
200 lfm
300 lfm
100 lfm
Natural Convection
UQQ-5/17-Q12P Maximum Current Temperature Derating
No baseplate, VIN = 12V (transverse air flow at sea level)