参数资料
型号: BCM48BF030T210A00
厂商: Vicor Corporation
文件页数: 14/18页
文件大小: 0K
描述: BCM BUS CONVERTER 3V 210W
应用说明: Factorized Power Architecture and V-I Chips
产品培训模块: VI Chip Bus Converter Modules
标准包装: 1
系列: V-I Chip™, BCM™
类型: 总线转换器模块
输出数: 1
电压 - 输入(最小): 38V
电压 - 输入(最大): 55V
输出电压: 3V
电流 - 输出(最大): 70A
电源(瓦) - 制造商系列: 210W
电压 - 隔离: 2.25kV(2250V)
应用: 商用
特点: 具有远程开/关功能和 UVLO
安装类型: 表面贴装
封装/外壳: 模块
尺寸/尺寸: 1.28" L x 0.87" W x 0.26" H(32.5mm x 22.0mm x 6.7mm)
包装: 托盘
工作温度: -40°C ~ 125°C
效率: 94.3%
电源(瓦特)- 最大: 210W
重量: 0.032 磅(14.51g)
其它名称: 1102-1142
BCM48BF030T210A00-ND
PRELIMINARY DATASHEET
12.0 CURRENT SHARING
The performance of the SAC? topology is based on efficient
transfer of energy through a transformer without the need of
closed loop control. For this reason, the transfer characteristic
can be approximated by an ideal transformer with a positive
temperature coefficient series resistance.
This type of characteristic is close to the impedance
characteristic of a DC power distribution system both in
dynamic (AC) behavior and for steady state (DC) operation.
When multiple BCM? modules of a given part number are
connected in an array they will inherently share the load
current according to the equivalent impedance divider that the
system implements from the power source to the point of load.
Some general recommendations to achieve matched array
impedances include:
? Dedicate common copper planes within the PCB
to deliver and return the current to the modules.
? Provide as symmetric a PCB layout as possible among modules
? Apply same input / output filters (if present) to each unit.
For further details see AN:016 Using BCM? Bus Converters
in High Power Arrays .
BCM 48 B x 030 y 210A00
13.0 FUSE SELECTION
In order to provide flexibility in configuring power systems
V ? I Chip? modules are not internally fused. Input line fusing
of V ? I Chip products is recommended at system level to
provide thermal protection in case of catastrophic failure.
The fuse shall be selected by closely matching system
requirements with the following characteristics:
? Current rating (usually greater than maximum current
of BCM module)
? Maximum voltage rating (usually greater than the maximum
possible input voltage)
? Ambient temperature
? Nominal melting I 2 t
? Recommend fuse: <= 10A Littlefuse Nano 2 Fuse.
14.0 REVERSE OPERATION
BCM modules are capable of reverse power operation. Once
the unit is started, energy will be transferred from secondary
back to the primary whenever the secondary voltage exceeds
VIN ? K. The module will continue operation in this fashion for
as long as no faults occur.
The BCM48BF030T210A00 has not been qualified for
continuous operation in a reverse power condition.
Furthermore fault protections which help protect the module in
Vin
Z IN_EQ1
BCM1
R 0_1
Z OUT_EQ1
Vout
forward operation will not fully protect the module in reverse
operation.
Transient operation in reverse is expected in cases where there
is significant energy storage on the output and transient
+ DC
Z IN_EQ2
BCM2
R 0_2
Z OUT_EQ2
Load
voltages appear on the input. Transient reverse power
operation of less than 10 ms, 10% duty cycle is permitted and
has been qualified to cover these cases.
Z IN_EQn
BCMn
Z OUT_EQn
R 0_n
Figure 16 — BCM? module array
Rev. 1.1
V?I CHIP CORP. (A VICOR COMPANY) 25 FRONTAGE RD. ANDOVER, MA 01810 800-735-6200
7/2011
Page 14 of 18
v i c o r p o w e r. c o m
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