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The MAX5954L evaluation kit (EV kit) is a fully assembled
and tested surface-mount single hot-plug controller
PC board for a single PCI Express® hot-plug
slot. The circuit uses a MAX5954L IC in a 36-pin thin
QFN package. The EV kit provides independent power
control for the 12V, 3.3V, and 3.3V-auxiliary outputs of a
single PCI-Express x16 connector. The EV kit demonstrates
the MAX5954L IC's inrush current control,
output overcurrent/short-circuit protection and input
undervoltage monitoring features.
The MAX5954L IC controls two separate external
n-channel MOSFETs for the 12V and 3.3V outputs,
respectively. Additionally, the MAX5954L has an internal
MOSFET that controls the 3.3V-auxiliary output.
Switches are provided to independently enable/disable
the 12V/3.3V main and 3.3V-auxiliary supplies.
The MAX5954L EV kit can be reconfigured for evaluating
a x1, x4, or x8 PCI Express single hot-plug design.
Alternatively, the EV kit can also be used to demonstrate
the MAX5954L hot-plug features without using
the PCI Express x16 connector.
The EV kit includes a MAX7313 I/O expander that
enables communication through an SMBus™ interface
for the MAX5954L signals and some of the PCI Express
signals. A CMAXQUSB interface board can be used to
enable PC communication through the SMBus interface.
Windows® 98-/2000-/XP-compatible GUI software
is provided to access the MAX7313 I/O expander and
MAX5954L signals. The MAX5954L EV kit can also be
used in local control, without any software, or interfaced
to a user-provided SMBus system signal.
Order the MAX5954LEVCMAXQUSB for a complete PC-based
evaluation of the MAX5954L. Order the
MAX5954LEVKIT if you already have a CMAXQUSB
interface board or do not require PC-based evaluation
of the MAX5954L.
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