PTQA430025_0612 Datasheet, PDF (7/18 Pages) Texas Instruments – 100-W 48-V INPUT ISOLATED DC/DC CONVERTER

PTQA430025, PTQA430033, PTQA420050
www.ti.com
SLTS261A – MAY 2006 – REVISED DECEMBER 2006
TYPICAL CHARACTERISTICS
PTQA430025, V_O = 2.5 V
All data listed in the graphs below have been developed from actual products tested at 25°C. This data is considered typical
data for the DC-DC Converter. SOA curves represent operating conditions at which internal components are at or below
manufacturer's maximum rated operating temperature. For Figure 4 Safe Operating Area, V_I = 48 V.
EFFICIENCY
vs
LOAD CURRENT
95
50
V_I = 36 V
90
45
85
40
80
35
75
V_I = 75 V
V_I = 60 V
30
70
V_I = 48 V
25
65
20
60
15
55
50
10
45
5
40
0
0
5
10
15
20
25
30
0
I_O − Output Current − A
Figure 1.
OUTPUT RIPPLE
vs
LOAD CURRENT
V_I= 75 V
V_I= 60 V
V_I= 48 V
V_I= 36 V
5
10
15
20
25
30
I_O − Output Current − A
Figure 2.
POWER DISSIPATION
vs
LOAD CURRENT
12
10
8
V_I = 75 V
V_I = 60 V
6
V_I = 48 V
4
V_I = 36 V
2
0
0
5
10
15
20
25
30
I_O − Output Current − A
Figure 3.
AMBIENT TEMPERATURE
vs
LOAD CURRENT
90
80
Natural
Convection
70
LFM = 400
60
LFM = 200
50
LFM = 100
40
30
20
0
5
10
15
20
25
30
I_O − Output Current − A
Figure 4.
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