Datasheet

UWE Series
Wide Input, Isolated
Eighth-Brick DC-DC Converters
MDC_UWE Series.E04 Page 7 of 23
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PERFORMANCE DATA
Maximum Current Temperature Derating @ sea level
(VIN = 12V, transverse airfl ow, no baseplate)
Maximum Current Temperature Derating @sea level
(VIN = 12V, transverse airfl ow, with baseplate)
UWE-3.3/20-Q12N
UWE-3.3/20-Q12N
UWE-3.3/20-Q12N
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
13
14
15
16
17
18
19
20
Ambient Temperature (°C)
Output Current (Amps)
Natural Convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
Maximum Current Temperature Derating @sea level
(VIN = 24V, transverse airfl ow, with baseplate)
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
13
14
15
16
17
18
19
20
Ambient Temperature (°C)
Output Current (Amps)
Natural Convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
Effi ciency vs. Line Voltage and Load Current @ 25°C
2 4 6 8 10 12 14 16 18 20
72
74
76
78
80
82
84
86
88
90
92
Vin = 30 V
Vin = 24 V
Vin = 36 V
Vin = 12 V
Vin = 9 V
Load Current (Amps)
Efficiency (%)
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
11
12
13
14
15
16
17
18
19
20
Ambient Temperature (°C)
Output Current (Amps)
Natural Convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)