Texas Instruments LM5064EVK, User Manual, Page: 4 / 28

Hardware Setup Steps
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4 SNVA481B – October 2011 – Revised January 2020
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AN-2143 LM5064 Evaluation Kit
The LM5064EVK is supplied with the PMBus address set to 0x16 as dictated by the switch configuration
of the ADR0, ADR1, and ADR2 jumper connections.
Figure 3. Connection Illustration
The first step to evaluate the telemetry features of LM5064 is to install the GUI software. The software is
included on a CD in the evaluation kit and is titled PMBManager-x.x.x-xxxxxxxx.exe, where the x
characters indicate the software version and build date. This file should be executed on a PC running
Windows XP or later to install the software. Once the GUI software is installed the hardware should be
configured as shown in
Figure 3 .
5 Hardware Setup Steps
1. Connect the input supply to the GND1 (+) and VEE (-) banana plugs.
2. Connect the load to the GND2 (+) and VEE_OUT (-) banana plugs.
3. Connect the FTDI dongle to the 10 pin connector (J2) on the left side of the board.
4. Connect the supplied mini USB cable from the FTDI dongle to an USB port on a PC.
When the FTDI dongle is connected for the first time the user will be prompted to install the device drivers.
For the most current driver installation procedure refer to the README.TXT file in the installation
directory.
For a hot swap circuit to function reliably, a low inductance connection to the input supply is
recommended. Its purpose is to minimize voltage transients which occur when the load current changes or
is shut off. If not careful, wiring inductance in the supply lines will generate a voltage transient at the input
which can exceed the absolute maximum rating of the LM5064, resulting in its destruction. To protect
against such voltage transients, TVS device Z1 is provided to clamp the voltage at the input to within safe
operating limits. Likewise, Schottky diode D1 is provided on the output to clamp the output from going
excessively positive during short circuit events.
6 Device Evaluation
After configuring the hardware connections, apply an input voltage of -48V to the device. The current
hardware configuration allows the LM5064 device to work from -36V to -60V input supply voltage;
however, this guide will assume an input voltage of -48V. Launch the GUI by going to the Windows Start
menu -> All Programs -> PMBManager-x.xxxxx -> PMBusManager. A pulldown menu should come up
with a list of devices populated. Select the "LM5064" option as shown in
Figure 4 .
Figure 4. Device Selector