Texas Instruments LM5066I EVM, Руководство пользователя

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Getting Started
6 Getting Started
The LM5066IEVM is supplied with the PMBus address set to 0x40 as dictated by the jumper configuration
of the ADR0, ADR1, and ADR2 jumper connections.
The first step to evaluate the telemetry features of LM5066I is to install the GUI software. The software
can be found under software on the
product page . This file should be executed on a PC running
Windows
®
XP or later to install the software.
6.1 Hardware Setup Steps
1. Connect the input supply to the VIN (J1) and GND (J2) banana plugs.
2. Connect the load to the VOUT (J3) and GND (J4) banana plugs.
3. Connect the FTDI Dongle to the 10-pin connector on the left side of the board to J5.
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, TI recommends a low inductance connection to the input supply.
Its purpose is to minimize voltage transients which occur when the load current changes or is shut off. If
the user is 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 LM5066I, resulting in its destruction. To protect
against such voltage transients, TVS device D2 is provided to clamp the voltage at the input to within safe
operating limits. Likewise, Schottky diode D3 is provided on the output to clamp the output from going
excessively negative during short circuit events.
6.2 Device Evaluation
After configuring the hardware connections, apply an input voltage of 48 V to the device. The current
hardware configuration allows the LM5066I device to work from 40- to 60-V input supply voltage; however,
this guide assumes an input voltage of 48 V. 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 "LM5066" option as shown in Figure 9 .
Figure 9. Device Selector
The device should be detected on the PMBus, and the initial load screen should appear as shown in
Figure 10 .
11 SNVU444 – May 2014 LM5066IEVM-626 Evaluation Module (EVM)
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