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MP8869S Evaluation Kit User Guide rev 1.0
MonolithicPower.com
7/17/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
USER GUIDE
– MP8869S EVALUATION KIT (EVKT-8869S)
Section 3. Evaluation Kit Test Set-Up
3.1 Hardware Set-Up
The hardware must be configured properly prior to use. Use the USB cable to connect the EVKT-
USBI2C-02 communication interface to the PC, and follow the instructions below to set up the EVB.
1. Locate the proper wires to connect the EVB to the EVKT-USBI2C-02 communication interface.
2. Connect SCL, SDA, and GND (see Figure 6). If needed, refer to the datasheet for further clarification.
Figure 6: EVB to MPS I
2
C Communication Interface Wire Connection
3.2 Powering up the EVB
1. Connect the positive and negative terminals of the load to the VOUT and GND pins, respectively.
2. Preset the power supply output between 4.5V and 21V, and then turn off the power supply.
3. Connect the positive and negative terminals of the power supply output to the VIN and GND pins,
respectively.
4. Turn the power supply on. The MP8869S will enter the power-on sequence automatically.
3.3 Software Set-Up
After connecting the hardware according to the above steps, follow the steps below to use the GUI
software.
1. Start the software. It will automatically check the EVB connection.
• If the connection is successful, the address will be listed in the “Slave Address” (see Figure 7).