MPS MEZDPD4506A Manuel utilisateur

User Guide

mEZDPD4506A Evaluation Kit (PKT-mEZDPD4506A)

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

mEZDPD4506A Evaluation Kit User Guide Rev 1.0 MonolithicPower.com 1

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Table of Contents

Overview .................................................................................................................................................................. 2

Introduction.............................................................................................................................................................. 2

Kit Contents............................................................................................................................................................. 2

Features and Benefits............................................................................................................................................ 3

Kit Specifications..................................................................................................................................................... 3

Section 1. Hardware Specifications..................................................................................................................... 4

1.1 Personal Computer Requirements................................................................................................................ 4

1.2 EVmEZDPD4506A-00A Specifications......................................................................................................... 4

1.3 EVKT-USBI2C-02 Specifications................................................................................................................... 4

Section 2. Software Requirements ...................................................................................................................... 5

2.1 Software Installation ........................................................................................................................................ 5

Section 3. Evaluation Kit Test Set-Up ................................................................................................................. 6

3.1 Hardware Set-Up.............................................................................................................................................. 6

3.2 Powering Up the EVB...................................................................................................................................... 6

3.3 Software Set-Up............................................................................................................................................... 6

3.4 Device Programming Instructions.................................................................................................................. 9

3.5 Troubleshooting Tips..................................................................................................................................... 11

Section 4. PMBUS Interface ............................................................................................................................... 13

Section 5. Ordering Information.......................................................................................................................... 13

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

mEZDPD4506A Evaluation Kit User Guide Rev 1.0 MonolithicPower.com 2

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Overview

Introduction

The PKT-mEZDPD4506A is an evaluation kit for the mEZDPD4506A. The mEZDPD4506A is a PCB-

based, high-frequency, synchronous, rectified step-down module with a PMBus interface. The

mEZDPD4506A offers a complete power solution that achieves up to 6A continuous output current with

excellent load and line regulation over a wide input voltage range. MPS’s proprietary, multi-phase

constant-on-time (MCOT) control provides ultra-fast transient response and simple loop compensation.

This kit allows for quick evaluation and module configurations through the PMBus interface.

Kit Contents

PKT-mEZDPD4506A kit contents (items listed below can be ordered separately, and the GUI installation

file and supplemental documents can be downloaded from the MPS website):

Part Number

Item

Quantity

EVmEZDPD4506A-00A

mEZDPD4506A evaluation board

EVKT-USBI2C-02

Includes one USB to PMBus communication interface

device, one USB Male A to B cable, one 10-pin ribbon

cable, one 3-pin ribbon cable

mEZDPD4506A-0001

mEZDPD4506A module with default configuration

Figure 1: PKT-mEZDPD4506A Evaluation Kit Set-Up

Input Power

Supply

Input

Output

Load

USB

Cable

Ribbon Cable

Evaluation

Board

Virtual Bench

V3.0

USB to PMBus

Communication Interface

EVKT-USBI2C-02

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

mEZDPD4506A Evaluation Kit User Guide Rev 1.0 MonolithicPower.com 3

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Features and Benefits

The mEZDPD4506A is highly customizable. Users can program the power module via the MPS PMBus

and multi-time programming (MTP) memory.



Values written to the registers via PMBus will NOT be retained once the module is powered down

unless they are written into the MTP memory.



To write to the MTP memory, the input voltage must be greater than 8V.

Key programmable features: PMBus

Switching frequency

Operation mode –AAM or CCM

Output voltage

Soft-start time

Fault threshold

Kit Specifications

Features

Specification

Input Voltage

4V to 45V

Output Voltage

0.6V to 24V (default: 3.3V)

Maximum Output Current

10A continuous, 12A peak

Default Switching Frequency

600kHz

Operating Systems Supported

Windows 7 or later

System Requirements

Minimum 15.6MB free

EVB Size (LxW)

6.4cmx6.4cm

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

mEZDPD4506A Evaluation Kit User Guide Rev 1.0 MonolithicPower.com 4

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Section 1. Hardware Specifications

1.1 Personal Computer Requirements

The following requirements must be met to use the PKT-mEZDPD4506A:

Operating system of Windows XP, 7, or later

Net framework 4.0

PC with a minimum of one available USB port

At least 15.6MB of free space

1.2 EVmEZDPD4506A-00A Specifications

The EVmEZDPD4506A-00A is the evaluation board for the mEZDPD4506A. For more information

regarding the evaluation board, refer to the EVmEZDPD4506A-00A datasheet.

Feature

Specification

Input Voltage

4V to 45V

Output Voltage

0.6V to 24V (default: 3.3V)

Maximum Output

Current

10A continuous, 12A peak

EVB Size (LxW)

6.4cmx6.4cm

Figure 2: EVmEZDPD4506A-00A

Evaluation Board

1.3 EVKT-USBI2C-02 Specifications

The EVKT-USBI2C-02 is the PMBus and I2C communication interface device, which connects the EVB

and the PC, and its supporting accessories. Together with the eMotion SystemTM Virtual Bench Pro GUI

tool, it provides a quick and easy way to evaluate the performance of MPS digital products. For more

details, refer to the EVKT-USBI2C-02 datasheet.

Figure 3: EVKT-USBI2C-02 Communication Interface

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

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Section 2. Software Requirements

2.1 Software Installation

The eMotion SystemTM Virtual Bench Pro GUI tool provides an easy way to access the registers, program

the MTP memory, and monitor the key parameters of MPS power modules. Follow the instructions below

to install the software:

1. Download the GUI installation file, “Virtual Bench Pro 3.0,” from the MPS website at:

https://www.monolithicpower.com/en/virtual-bench-pro-3-0.html

2. Extract the zip package and double-click the .exe file to open the set-up guide (see Figure 4). If a

protection window comes up, click “More info,” then click “Run anyway.”

3. Follow the prompts in the set-up guide.

4. Wait for the status screen to verify that installation is complete.

Figure 4: eMotion SystemTM Virtual Bench Pro GUI Set-Up Guide

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

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Section 3. Evaluation Kit Test Set-Up

3.1 Hardware Set-Up

The hardware must be properly configured prior to use. Follow the instructions below to set up the EVB:

1. Connect the PMBus cable to the evaluation board and the EVKT-USBI2C-02 communication

interface (see Figure 5).

2. Connect the EVKT-USBI2C-02 communication interface to the PC using the USB cable.

Figure 5: EVB to MPS I2C Communication Interface Device 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. Set the output voltage of a bench power supply between 4V and 45V before connecting to the EVB

to prevent damage, then turn off the power supply.

3. Connect the positive and negative terminals of the power supply to the VIN and GND pins,

respectively.

4. Turn the power supply on. The EVB will power up automatically.

3.3 Software Set-Up

After connecting the hardware using the steps above, please follow the steps below to set up the

software:

1. Open eMotion SystemTM Virtual Bench Pro. The software will scan the connected power modules.

If the GUI detects the power module, “mEZDPD4506AS”will appear on the left panel, and the

indicator to the left of “mEZDPD4506AS”will turn green (see Figure 6).

Please refer to the troubleshooting section if the power module is not detected automatically.

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

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2. Figure 6: Green Indicator Shows Successful ConnectionThe Register Control menu will appear in the middle

panel. The values stored in the registers of the module are read automatically (see Figure 7).

Figure 7: Values Displayed in the Register of the Module

3. Change the register value as desired. A valid input must be entered. Otherwise, an alert will appear,

and the entered value will not be accepted (see Figure 8).

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

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Figure 8: Enter Desired Values in the Register

4. Click the “Write to Chip” button to write values to the register (see Figure 9).

Figure 9: Write Values Steps Shown in Table



Note that the values written to the registers will NOT be saved once the EVB is powered down

unless they are written into the MTP memory (see Section 3.4).

USER GUIDE –mEZDPD4506A EVALUATION KIT (PKT-mEZDPD4506A)

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3.4 Device Programming Instructions

The MTP memory of mEZDPD4506A can be custom programmed. Follow the instructions below to create

and export customized configurations:

1. Connect the EVB to a PC following the steps in Section 3.3.

2. Set the register values as desired, and upload them into the registers (steps 3-4 in Section 3.3).

3. Increase the input voltage of the EVB to 8V to 45V.

4. Click the “Write to MTP”button, and wait until the writing action is completed (see Figure 10).

5. Turn off the power supply to the EVB, wait 3 seconds, and turn it on for the new configuration to take

effect.

Figure 10: Write to the MTP Memory

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