Datasheet

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PTB78560C Characteristic Data (V
O
= 12 V)
(7) (8)
0
2
0
0.5
1
3
7
5
6
4
1.0 2.0 2.5
1.5
I
O
− Output Current − A
P
D
− Power Dissipation − W
V
I
=60 V
V
I
=48 V
V
I
=18 V
V
I
=24 V
V
I
=36 V
0
50
45
0.5
40
55
70
65
60
75
85
80
1.0 1.5 2.5
90
2.0
V
I
=18 V
I
O
− Output Current − A
Efficiency − %
V
I
=24 V
V
I
=60 V
V
I
=48 V
V
I
=36 V
15
0
5
10
35
20
25
30
45
40
0 0.5 1.0 2.0 2.51.5
V
I
=18 V
I
O
− Output Current − A
V
O
− Output Voltage − mV
PP
V
I
=24 V
V
I
=60 V
V
I
=48 V
V
I
=36 V
40
30
20
70
60
50
90
80
0 0.5 1.0 1.5 2.52.0
400 LFM
I
O
− Output Current − A
T
A
− Ambient Temperature − °C
200 LFM
100 LFM
0 LFM
(Natural Convection)
40
30
20
70
60
50
90
80
0 0.5 1.0 1.5 2.52.0
400 LFM
I
O
− Output Current − A
T
A
− Ambient Temperature − °C
200 LFM
100 LFM
0 LFM
(Natural Convection)
PTB78560A , PTB78560B
PTB78560C
SLTS249 – JUNE 2005
TYPICAL CHARACTERISTICS (continued)
EFFICIENCY POWER DISSIPATION OUTPUT VOLTAGE RIPPLE
vs vs vs
OUTPUT CURRENT OUTPUT CURRENT OUTPUT CURRENT
Figure 16. Figure 17. Figure 18.
TEMPERATURE DERATING TEMPERATURE DERATING
vs vs
OUTPUT CURRENT (V
I
= 24 V) OUTPUT CURRENT (V
I
= 48 V)
Figure 19. Figure 20.
(7) All data listed in Figure 16 , Figure 18 , and Figure 17 have been developed from actual products tested at 25°C. This data is considered
typical data for the dc-dc converter.
(8) The temperature derating curves represent operating conditions at which internal components are at or below manufacturer's maximum
rated operating temperature. Derating limits apply to modules soldered directly to a 100–mm × 100–mm, double-sided PCB with 2 oz.
copper. Applies to Figure 19 .
11
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