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BC048A015M014FP 参数 Datasheet PDF下载

BC048A015M014FP图片预览
型号: BC048A015M014FP
PDF下载: 下载PDF文件 查看货源
内容描述: BCM ™母线转换器 [BCM™ Bus Converter]
分类和应用: 转换器
文件页数/大小: 11 页 / 973 K
品牌: VICOR [ VICOR CORPORATION ]
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PIN / CONTROL FUNCTIONS  
+In / -In – DC Voltage Input Ports  
+Out / -Out – DC Voltage Output Ports  
The VI BRICK (BCM) input voltage range should not be exceeded. An  
internal under / over voltage lockout function prevents operation outside  
of the normal operating input range. The BCM turns on within an input  
voltage window bounded by the “Input undervoltage turn-on” and “Input  
overvoltage turn-off” levels, as specified. The BCM may be protected  
against accidental application of a reverse input voltage by the addition of  
a rectifier in series with the positive input, or a reverse rectifier in shunt  
with the positive input located on the load side of the input fuse.  
Two sets of contacts are provided for the +Out port. They must be  
connected in parallel with low interconnect resistance. Similarly, two sets  
of contacts are provided for the –Out port. They must be connected in  
parallel with low interconnect resistance. Within the specified operating  
range, the average output voltage is defined by the Level 1 DC behavioral  
model of Figure 16. The current source capability of the BCM is rated in  
the specifications section of this document.  
The low output impedance of the BCM reduces or eliminates the need for  
limited life aluminum electrolytic or tantalum capacitors at the input of POL  
converters.  
The connection of the BCM to its power source should be implemented  
with minimal distribution inductance. If the interconnect inductance  
exceeds 100 nH, the input should be bypassed with a RC damper to retain  
low source impedance and stable operation. With an interconnect  
inductance of 200 nH, the RC damper may be 47 µF in series with 0.3 Ω.  
A single electrolytic or equivalent low-Q capacitor may be used in place of  
the series RC bypass.  
Total load capacitance at the output of the BCM should not exceed the  
specified maximum. Owing to the wide bandwidth and low output  
impedance of the BCM, low frequency bypass capacitance and significant  
energy storage may be more densely and efficiently provided by adding  
capacitance at the input of the BCM.  
PC – Primary Control  
The Primary Control port is a multifunction node that provides the  
following functions:  
Enable / Disable – If the PC port is left floating, the BCM output is enabled.  
Once this port is pulled lower than 2.4 Vdc with respect to –In, the output  
is disabled. This action can be realized by employing a relay, opto-coupler,  
or open collector transistor. Refer to Figures 1-3, 12 and 13 for the typical  
enable / disable characteristics. This port should not be toggled at a rate  
higher than 1 Hz. The PC port should also not be driven by or pulled up to  
an external voltage source.  
Primary Auxiliary Supply – The PC port can source up to 2.4 mA at 5.0 Vdc.  
The PC port should never be used to sink current.  
Alarm – The BCM contains circuitry that monitors output overload, input  
overvoltage or undervoltage, and internal junction temperatures. In response  
to an abnormal condition in any of the monitored parameters, the PC port  
will toggle. Refer to Figure 13 for PC alarm characteristics.  
Figure 14 — VI BRICK BCM pin configuration (viewed from pin side)  
TM and RSV – Reserved for factory use.  
Bus Converter Module  
BC048A015T014FP  
vicorpower.com  
Rev. 1.0  
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