BC352R440T065VM-00 Datasheet, PDF (8/10 Pages) Vicor Corporation – BCM Array™

THERMALS AND PIN CONTROL FUNCTIONS
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10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Ambient Temperature (ºC)
Figure 14 – Typical thermal curve – verify all thermal management systems experimentally.
Free Air
200 LFM
400 LFM
600 LFM
800 LFM
1000 LFM
Power Limit
Figure 15 — Temp measurement location
+In / -In – DC Voltage Input Ports
The BCM Array input voltage range should not be exceeded. An
internal under / over voltage lockout-function prevents operation
outside of the normal operating input range. The module turns on
within an input voltage window bounded by the “Input under-
voltage turn-on” and “Input over-voltage turn-off” levels, as
specified. The module 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.
CNTRL – Enable / Disable
The Enable / Disable signal is a multifunction node that provides the
following functions:
Enable / Disable – If CNTRL is left floating, the module output is
enabled. Once this port is pulled lower than 1.95 Vdc with respect to
–In, the output is disabled. This action can be realized by employing a
relay, opto-coupler, or open collector transistor. This signal should not
be toggled at a rate higher than 1 Hz. CNTRL should also not be driven
by or pulled up to an external voltage source.
Primary Auxiliary Supply – CNTRL can source up to 10 mA at 5.0 Vdc.
CNTRL should never be used to sink current.
Alarm – The module contains circuitry that monitors output overload,
input over voltage or under voltage, and internal junction
temperatures. In response to an abnormal condition in any of the
monitored parameters, CNTRL will toggle.
+Out / -Out – DC Voltage Output Ports
Multiple pins are provided for the +Out and –Out connections.
They must be connected in parallel with low interconnect resistance.
The low output impedance of the module reduces or eliminates the
need for limited life aluminum electrolytic or tantalum capacitors at
the input of POL converters.
Total load capacitance at the output of the device should not exceed
the specified maximum. Owing to the wide bandwidth and low
output impedance of the BCM Array, low frequency bypass
capacitance and significant energy storage may be more densely
and efficiently provided by adding capacitance at the input.
VI BRICK BCM Array
BC352R440T065VM-00
vicorpower.com
Rev. 1.0
Page 8 of 10