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B048F060M24 Datasheet

  • B048F060M24

  • VI Chip - BCM Mus Converter Module

  • 567.08KB

  • 15頁

  • VICOR   VICOR

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PRELIMINARY
Application Note
(continued)
Input Impedance Recommendations
To take full advantage of the BCM capabilities, the impedance presented
to its input terminals must be low from DC to approximately 5 MHz. The
source should exhibit low inductance (less than 100 nH) and should have a
critically damped response. If the interconnect inductance exceeds 100 nH,
the BCM input pins should be bypassed with an RC damper (e.g., 100 碌F
in series with 0.3 ohm) to retain low source impedance and stable
operations. Given the wide bandwidth of the BCM, the source response is
generally the limiting factor in the overall system response.
Anomalies in the response of the source will appear at the output of the
BCM multiplied by its K factor. The DC resistance of the source should be
kept as low as possible to minimize voltage deviations. This is especially
important if the BCM is operated near low or high line as the over/under
voltage detection circuitry could be activated.
Input Fuse Recommendations
V鈥 Chips are not internally fused in order to provide flexibility in
configuring power systems. However, input line fusing of V鈥 Chips must
always be incorporated within the power system. A fast acting fuse should
be placed in series with the +IN port.
V鈥 Chip Bus Converter Module
Application Circuits
Vo = 4.75 - 6.87 V
+In
+Out
48 Vin
(38 - 55 Vdc)
TM
RSV
PC
BCM
K
Ro
-Out
+Out
-In
-Out
NiPOL
1
NiPOL
2
NiPOL
3
NiPOL
4
LOAD
1
LOAD
2
LOAD
3
LOAD
4
Figure 27鈥擳he
BCM provides an isolated output from a narrow range input ideal for driving non-isolated point of load converters (niPOLs)
In the following figure;
K = BCM Transformation Ratio
R
O
= BCM Output Resistance
V
O
= BCM Output
V
f
= PRM Output (Factorized Bus Voltage)
V
L
= Desired Load Voltage
V
S
= PRM Output Set Point Voltage
FPA Local Loop
Vo = V
L
鈥?I
O
鈥?R
O
VC
PC
TM
IL
NC
PR
VH
SC
SG
OS
NC
CD
+In
+Out
R
OS
+In
PRM-AL
Factorized
Power Bus
V
f
=
V
L
K
+Out
TM
RSV
PC
BCM
K
Ro
-Out
48 Vin
(36 - 75 Vdc)
鈥揑n
鈥揙ut
+Out
-In
L
O
A
D
-Out
V
S
range = 38 - 55 Vdc
B048K060T24
(K = 1/8 : R
O
= 5.5 m鈩?
Figure 28鈥擳he
PRM regulates its output to provide a constant factorized bus voltage. The output voltage is the nominal load voltage, Vo, at no
load and decreases with load at a constant rate equal to the BCM output resistance Ro.
vicorpower.com
800-735-6200
V鈥 Chip Bus Converter Module
B048K060T24
Rev. 1.0
Page 13 of 15

B048F060M24 產(chǎn)品屬性

  • VI Chip Bus Converter Modules

  • 1

  • 電源 - 板載

  • DC DC 轉(zhuǎn)換器（分解式）

  • V-I Chip™, BCM™

  • 總線轉(zhuǎn)換器模塊

  • 1

  • 55V

  • 6V

  • 40A

  • 240W

  • 2.25kV（2250V）

  • 商用

  • 具有遠程開/關(guān)功能和 UVLO

  • 表面貼裝

  • 模塊

  • 1.28" L x 0.87" W x 0.26" H（32.5mm x 22.0mm x 6.7mm）

  • 托盤

  • -55°C ~ 125°C

  • 94.6%

  • 240W

  • 0.033 磅（14.97g）

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