IB050Q096T64N1-CB Datasheet, PDF (3/5 Pages) Vicor Corporation – VI BRICK® IBC Customer Evaluation Board

Set Up
The Customer Evaluation Board should be set up as follows:
Note: Care should be taken to avoid reversing polarities if connecting to the opposite
(solder) side of the board.
+IN, –IN
Connect a high-quality, low-noise power supply to the +IN and –IN terminals of the
Customer Evaluation Board. The start up slew rate of the input source should be no
greater than 1 V/µs. The interconnect leads should be heavy gauge and as short as
possible. Additional capacitance may have to be added on the evaluation board to
make up for impedances in the interconnect leads as well as deficiencies in the source.
It is important to remember that noise from the source, as well as any input source
voltage drops, will appear at the output of the IBC multiplied by its K factor.
+OUT, –OUT
An electronic or passive load should be connected to +OUT and –OUT terminals of the
Customer Evaluation Board with short heavy-gauge leads. Most commercially available
electronic loads do not have current slew rates capable of fully exercising the IBC. The
Customer Evaluation Board can be connected directly to the application for which
the IBC is intended. However, the interconnect impedances between the Customer
Evaluation Board and the application can greatly affect the transient response. For
applications where transient response is critical, the user should consider mounting the
IBC directly to the target application PCB.
EN Control
The IBC Customer Evaluation Board provides two methods to enable and disable the IBC.
For the first method, the IBC is enabled and disabled solely with the S10 switch.
No connection to the J11 header should be made. Flipping S10 toward the outside
perimeter enables the IBC. Flipping S10 toward the inside area disables the IBC.
For the second method, the IBC is enabled and disabled solely with the J11 header. The
S10 switch should be fixed in the inside position. Application of 5 V or more between
EN_EXT_IN and –INM, pins numbered 1 and 3 respectively, is sufficient to enable the
IBC. Application of less than 1 V between said pins is sufficient to disable the IBC.
GND
The GND terminal of the Customer Evaluation Board is provided for basic EMI testing of
the IBC, during which it should be connected to earth ground. Locations S01 & S02 are
provided to shunt the common-mode choke if desired. Zero ohm resistors are placed in
these locations for this purpose.
Output Voltage Measurement Jack (J10)
This connector is provided to make accurate measurements of the output voltage of the
IBC. Many types of scope probes may be directly connected to this point if the probe is
equipped with a removable plastic sheath. To avoid creating ground loops when making
measurements of the output or input voltage, these measurements should be
made separately.
UG:104
vicorpower.com
Applications Engineering: 800 927.9474
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