PTB78560A_16 Datasheet, PDF (8/27 Pages) Texas Instruments – AUTO-TRACK™ SEQUENCING

PTB78560A, PTB78560B
PTB78560C
SLTS249 – JUNE 2005
TYPICAL CHARACTERISTICS
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PTB78560B Characteristic Data (V_O = 1.8 V) ⁽¹⁾⁽²⁾
EFFICIENCY
vs
OUTPUT CURRENT
80
V_I=18 V
75 ^{VI=24 V}
70
65
V_I=36 V
60
V_I=48 V
55
50
V_I=60 V
45
40
0
2
4
6
I_O − Output Current − A
Figure 1.
POWER DISSIPATION
vs
OUTPUT CURRENT
7
6
5
V_I=60 V
4
V_I=48 V
3
V_I=36 V
OUTPUT VOLTAGE RIPPLE
vs
OUTPUT CURRENT
35
30
25
20
15
2
1
8
0
0
.
V_I=18 V
V_I=24 V
2
4
6
I_O − Output Current − A
Figure 2.
10
5
0
8
0 1 23 4 5 6 7 8
I_O − Output Current − A
Figure 3.
TEMPERATURE DERATING
vs
OUTPUT CURRENT (V_I = 24 V)
90
TEMPERATURE DERATING
vs
OUTPUT CURRENT (V_I = 48 V)
90
80
80
70
400 LFM
60
200 LFM
50
100 LFM
40
0 LFM
(Natural Convection)
30
70
400 LFM
60
200 LFM
50
100 LFM
40
0 LFM
(Natural Convection)
30
20
0
1
23
4
5
6
7
8
I_O − Output Current − A
Figure 4.
20
0 1 23 4 5 6 7 8
I_O − Output Current − A
Figure 5.
(1) All data listed in Figure 1, Figure 3, and have been developed from actual products tested at 25°C. This data is considered typical data
for the dc-dc converter.
(2) All data listed in Figure 1, Figure 3, and have been developed from actual products tested at 25°C. This data is considered typical data
for the dc-dc converter.
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