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User Guide
MP5416 Evaluation Kit (EVKT-5416)
MP5416 Evaluation Kit User Guide Rev 1.31 MonolithicPower.com
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The remaining steps are optional and instruct how to check that new configurations have been
programmed.
Optional:
17. Adjust the input voltage to 3.5 - 5V.
18. Repeat steps 1-3 from this section.
19. If done correctly, new configurations will be shown in the table on the left hand side.
Notes:

Unlike in I2C, not all of the configurations you set in OTP mode will be displayed until you write to
MP5416-CCCC and power cycle.

After OTP, you:
o
Are still able to change values using the I2C.
o
Do not need to press P1 while powering on the board.

If you try to perform OTP on a previously programmed device, the GUI software will allow you to
proceed normally. However, your configurations will NOT be saved.
3.5 Troubleshooting Tips
Note: USBI2C-02 and USBI2C-01 drivers are not compatible. USBI2C-02 uses USBXpress and
USBI2C uses Cyusb3. USBI2C-02 is the recommended device for MPS PMBus and I2C.
EVKT-USBI2C-01
In case that the USBI2C-01 driver is not properly installed, manual installation is required. Follow the
steps below.
1. Open the Device Manager and select update driver software (see figure 19).
2. Click “Browse my computer for driver software”, find the downloaded driver and install.
Figure 19
EVKT-USBI2C-02
In the case that the USBI2C-02 driver is not properly installed, manual installation is required. Follow
the steps below.
Note: Check driver version. Find “USBXpress” Device in the Device Manager under USB controllers.
Right click and view properties Check to make sure the driver version matches the newest
version. (see figure 20)