Installation and Operation
2016 - 2018 Microchip Technology Inc.
DS50002723A-page 15
Note:
The inductance associated with long wires between the power supply and
the board input may cause voltage spikes at load stepping, start-up into
heavy load or hot wire plug condition. If the spikes exceed the 5.5V
maximum input voltage rating, the MIC7401 may fail.This behavior is
prevented by the C15 capacitor (150 µF tantalum) by absorbing voltage
spikes.
2.3
MIC7401 EVALUATION BOARD CONNECTORS
The MIC7401 Evaluation Board features different connectors for selecting different
functionality and test points for voltage measurements and power-good:
• J16 can be used to Enable or Disable the MIC7401. Placing a jumper between EN
and GND will disable the device. The MIC7401 Evaluation Board features a
pull-up resistor for the EN signal so the PMIC will be enabled by default.
• J3 can be used to monitor different signals with respect to local GND: EN, PG,
POR and STBY.
• J4 can be used to monitor the I
2
C interface (SDA and CLK) with respect to local
GND.
• J1 can be used to interface with other I
2
C buses providing SDA, SCL, PWR and
GND access.
• J5, J6, J7, J8, J9 and J10 connectors are provided to measure the output voltages
with respect to local GND for accurate voltage and noise measurements.
2.4
REQUIRED SOFTWARE AND HARDWARE TOOLS
In order to install, use and evaluate the product, there are several software and
hardware tools required to be installed and/or configured.
2.4.1
Requirements
The MIC7401 Evaluation Board requires only a single power supply with 5A (minimum)
current capability. The output load can either be an active (electronic) or passive
(resistive) load.
2.4.2
Required Software
• I
2
C Monitor 3.1.0 or newer versions
• Microsoft
®
.NET Framework 4.5 or higher
• Adobe
®
Acrobat Reader
®
• Microsoft
®
Windows 7
2.4.3
Required Hardware
• MIC7401 Evaluation Board
• USB-to-micro-USB Cable
2.4.4
Precautions
The MIC7401 Evaluation Board does not have reverse polarity protection. Applying a
soft voltage to the VIN and GND terminals can damage the device. The maximum
operating rating for V
IN
is 5.5V. Exceeding 5.5V on the VIN could damage the device.
