BCM352 x 125 y 300A00
No Load Power Dissipation
Full Load Efficiency vs. Temperature
12
10
8
96.0
95.5
95.0
94.5
94.0
93.5
93.0
6
4
2
0
-40
-20
0
20
40
60
80
100
330
335
340
Input Voltage (V)
-40 25
345
350
355
360
365
Case Temperature (°C)
330
352
365
100
Figure 1 — No load power dissipation vs. VIN ; TCASE
Figure 2 — Full load efficiency vs. temperature; V
IN
Efficiency & Power Dissipation -40 °C Case
Efficiency & Power Dissipation 25 °C Case
98
94
90
86
82
78
74
70
66
62
21
98
96
94
92
90
88
86
84
82
80
78
19
19
17
15
13
11
9
17
15
13
11
9
η
η
PD
PD
7
5
7
0
5
10
Output Load (A)
365 330
15
20
25
352
30
0
5
10
Output Load (A)
365 330
15
20
25
352
30
330
352
365
330
352
365
Figure 3 — Efficiency and power dissipation at -40 °C (case); V
Figure 4 — Efficiency and power dissipation at 25 °C (case); V
IN
IN
Efficiency & Power Dissipation 100 °C Case
Rout vs. Case Temperature
98
96
94
92
90
88
86
84
82
80
78
21
18
17
16
15
14
13
12
11
10
9
19
17
15
13
11
9
η
PD
7
5
8
-40
-20
0
20
40
60
80
100
0
5
10
15
20
25
30
Temperature (°C)
Output Load (A)
330
352
365
330
352
365
2.6 A
26 A
Figure 5 — Efficiency and power dissipation at 100 °C (case); V
Figure 6 — ROUT vs. temperature vs. IOUT
IN
BCM® Bus Converter
Page 6 of 18
Rev 1.7
vicorpower.com
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1/2013
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