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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 4. Ordering Information

The components of the evaluation kit can be purchased separately depending on user needs.

Part Number

Description

EVKT-8869S

Complete evaluation kit

Contents of EVKT-8869S

EV8869S-L-00A

MP8869SGL evaluation board

EVKT-USBI2C-02

Includes one USB to I2C communication interface, one USB cable,
one ribbon cable

Tdrive-8869S

USB thumb drive that stores the GUI installation file and supplemental
documents

Order directly from MonolithicPower.com.

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Summary of Contents for MP8869S

Page 1: ...User Guide MP8869S Evaluation Kit EVKT 8869S ...

Page 2: ...KIT EVKT 8869S Table of Contents Overview 3 Section 1 Hardware Specifications 5 1 1 Personal Computer Requirements 5 1 2 EV8869S L 00A Specifications 5 1 3 EVKT USBI2C 02 Specifications 5 Section 2 Software Requirements 5 2 1 Software Installation Procedure 6 Section 3 Evaluation Kit Test Set Up 7 3 1 Hardware Set Up 7 3 2 Powering up the EVB 7 3 3 Software Set Up 7 3 4 Troubleshooting Tips 10 Sec...

Page 3: ... input supply range from 2 85V to 18V with excellent load and line regulation This kit allows for quick evaluation of the MP8869S By using the I2C users can set the current limit slew rate work mode and output voltage This device also features telemetry which provides output voltage and output current monitoring via I2C Kit Contents EVKT 8869S kit contents items below can be ordered separately Par...

Page 4: ...under each method are outlined below I2C Adjustable output voltage Slew rate Selectable OVP OCP mode Selectable PFM mode Selectable PG deglitch time Selectable frequency Soft stop Adjustable current limit Output current voltage monitor System enable EN bit Status indication OC OTEW OT PG Kit Specifications Features Specification Supply for Board 2 85V 18V Operating Input Voltage 2 85V 18V Output V...

Page 5: ...e MP8869SGL For more information please refer to the EV8869S L 00A datasheet Figure 2 EV8869S L 00A Evaluation Board 1 3 EVKT USBI2C 02 Specifications The EVKT USBI2C 02 refers to the communication interface which connects the EVB the PC and its supporting accessories It provides I2C and PMBus capabilities Together with MPS Virtual Bench Pro and GUI tools it provides a quick and easy way to evalua...

Page 6: ...ons below to install the software Note In the near future this software can be downloaded from the MPS website For now it is provided on a USB thumb drive 1 Plug the thumb drive into the computer using any available USB port 2 Locate the folder containing the thumb drive contents 3 Double click the exe file to open the set up guide see Figure 4 4 Follow the prompts in the set up guide 5 Wait for t...

Page 7: ...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 suppl...

Page 8: ...ress Shows Successful Connection If not a warning will appear at the bottom There are two warnings users can expect 1 EVB is disconnected This means that the evaluation board is not connected see Figure 8 2 Communication Board is disconnected This means that the USB I2C communication interface is not connected Figure 8 Warning Indicates Unsuccessful Connection Evaluation Board not Connected Commun...

Page 9: ...ct button to select the MP8869S see Figure 7 The default GUI window is for the MP8861 The Register Control menu will appear on the left side I2C register values will be read and displayed on the right side after clicking the Read button see Figure 9 Figure 9 Values from I2C Shown in Table 4 Find the item you want to change and select the desired value from the drop down menu 5 Click the Read All b...

Page 10: ...matches the newest version see Figure 12 1 Browse the thumb drive contents and open the driver s folder 2 Install the correct USBXpress exe file Choose either 32 bit or 64 bit operating system 32 bit USBXpressInstaller_x86 exe 64 bit USBXpressInstaller_x64 exe 3 Connect the EVKT USBI2C 02 Dongle to the PC with the USB cable No Supply The MP8869S s input pin has an under voltage lockout UVLO detect...

Page 11: ...dering Information The components of the evaluation kit can be purchased separately depending on user needs Part Number Description EVKT 8869S Complete evaluation kit Contents of EVKT 8869S EV8869S L 00A MP8869SGL evaluation board EVKT USBI2C 02 Includes one USB to I2C communication interface one USB cable one ribbon cable Tdrive 8869S USB thumb drive that stores the GUI installation file and supp...

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