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參數(shù)資料
| 型號(hào)： | B048L120T15 |
| 廠商： | Vicor Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | VI Chip - BCM Bus Converter Module |
| 中文描述： | 六芯片- BCM的總線轉(zhuǎn)換器模塊 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 725K |
| 代理商： | B048L120T15 |
Vicor Corporation
Tel: 800-735-6200
vicorpower.com
VI Chip Bus Converter
B048K120T10
Rev. 1.2
Page 11 of 16
4
5
PRELIMINARY
Configuration Options (Cont.)
with 0.25'' Pin Fins
(VI Chip recessed into PCB)
IN–BOARD MOUNT
11.7
0.46
21.5
32.0
1.26
Figure 22
— In-board with pin fins – package L
ON–BOARD MOUNT
with 0.25'' Pin Fins
22.0
32.0
1.26
14.0
0.56
Figure 23
— On-board with pin fins – package G
mm
in
mm
in
Figure 24
—BCM test circuit
F1
+In
PC
SG
TM
–In
Temperature Monitor
+Out
–Out
Load
+
–
1
μ
F
ceramic
C3
7 A
Fuse
C1
8
μ
F
ceramic
BCM
R2
2K
D1
Notes:
Source inductance should be no more than 200 nH. If source inductance is
greater than 200 nH, additional bypass capacitance is required.
C3 should be placed close to the load.
D1 power good indicator will dim when a module fault is detected.
TM should always be referenced to SG.
SW1
Enable/Disable Switch
+
–
0.1
Input reflected ripple
measurement point
R3
R1
C2
ceramic
μ
F
0.30
Parallel Operation
The BCM will inherently current share when properly
configured in an array of BCMs. Arrays may be used for
higher power or redundancy in an application.
Current sharing accuracy is maximized when the source and
load impedance presented to each BCM within an array are equal.
The recommended method to achieve matched impedances is to
dedicate common copper planes within the PCB to deliver and
return the current to the array, rather than rely upon traces of
varying lengths. In typical applications the current being
delivered to the load is larger than that sourced from the input,
allowing traces to be utilized on the input side if necessary. The
use of dedicated power planes is, however, preferable.
The BCM power train and control architecture allow
bi-directional power transfer, including reverse power
processing from the BCM output to its input. Reverse power
transfer is enabled if the BCM input is within its operating
range and the BCM is otherwise enabled. The BCM’s ability to
process power in reverse improves the BCM transient response
to an output load dump.
Application Note
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