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參數(shù)資料
| 型號(hào)： | V048K015T80 |
| 廠商： | Vicor Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | VI Chip - VTM Voltage Transformation Module |
| 中文描述： | 六芯片- VTM電壓轉(zhuǎn)換模塊 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 630K |
| 代理商： | V048K015T80 |
Vicor Corporation Tel: 800-735-6200 vicorpower.com
VI Chip Voltage Transformation Module
Rev. 1.6
Page 11 of 20
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
—VTM test circuit
F1
+In
PC
SG
TM
–In
Temperature Monitor
+Out
–Out
Load
+
–
100
μ
F
C3
7 A
Fuse
C1
100
μ
F
Al electrolytic
VTM
R2
2K
D1
Notes:
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
+
–
Input reflected ripple
measurement point
C2
μ
F
0.47
Application Note
Parallel Operation
In applications requiring higher current or redundancy, VTMs
can be operated in parallel without adding control circuitry or
signal lines. To maximize current sharing accuracy, it is
imperative that the source and load impedance on each VTM in
a parallel array be equal.
To achieve matched impedances, dedicated power planes
within the PC board should be used for the output and output
return paths to the array of paralleled VTMs. This technique is
preferable to using traces of varying size and length.
The VTM power train and control architecture allow bi-directional
power transfer when the VTM is operating within its specified
ranges. Bi-directional power processing improves transient
response in the event of an output load dump. The VTM may
operate in reverse, returning output power back to the input
source. It does so efficiently.
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