ISL28022MBEV1Z Datasheet ISL28022MBEV1Z | P1-P3

ISL28022 Digital Power Monitor 8 Site Evaluation Kit

Introduction

The Digital Power Monitor (DPM) 8 site evaluation board

demonstrates the functionality and performance of the

ISL28022. By design, the ISL28022 is considered a digital

helper for a variety of applications ranging from energy

optimization to diagnostics of complex systems. The design of

the DPM evaluation board is generic such that the customer

can embed the monitor into their specific application.

The DPM Evaluation kit is accompanied by a graphical user

interface (GUI) that allows the user to configure the ISL28022

for monitoring bus voltage and current in a specific

application. The GUI has a data save feature allowing the

transfer of measurement data to another software application

for analysis.

The ISL28022EV1Z evaluation board has 8 sites/channels

with one microcontroller that is responsible for the data

transaction and configuration for each DPM. The ISL28022 is

a slave to the microcontroller via a single I²C/SMBus interface.

The ISL28022 has two address pins that allow for 16

individual DPMs to be connected on a single I²C bus. The

evaluation board utilizes 8 of the available 16 addresses of the

ISL28022.

The DPM evaluation board GUI operates on any Windows based

PC. The software communicates with the evaluation board

through the universal serial bus (USB) port. The microcontroller

translates the USB communication to an I²C command.

The evaluation kit is powered directly from the USB or from a

single-supply voltage ranging from 3V to 5.5V.

Each site of the ISL28022 can be configured uniquely. All

analog inputs accept input voltages 60V and lower. The shunt

analog inputs, VINP and VINN, accept common mode input

voltages of 60V and less. The maximum measurable

differential magnitude, ±(VINP-VINN), for the shunt inputs is

300mV. The shunt inputs can withstand a maximum of 60V

differentially allowing for the debug of catastrophic events.

Evaluation Package (Online

Order)

The Digital Power Monitor 8 Site Evaluation Kit contains the

following items:

• Evaluation Board (DUT Board)

• Evaluation Software (Online)

•User Guide

• ISL28022 Data sheet

Documentation for the individual device can be found in the

following link:

http://www.intersil.com//products/ISL28022#documents

Evaluation Board

FIGURE 1. ISL28022 DIGITAL POWER MONITOR 8 SITE EVALUATION BOARD

April 16, 2013

AN1811.0

Application Note 1811

Author: Ryan Roderick

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

Application Note 1811

April 16, 2013

AN1811.0

System Requirements

• Windows 98/NT/2000/XP/VISTA/WIN7

• Available USB Port

Software Installation

Download the latest Evaluation Board GUI (Graphical User

Interface) from the following link:

http://www.intersil.com//products/ISL28022#documents

Installing the Software

From the link supplied in the previous section, download and run the

executable file to start installing the GUI. The user will be greeted by

the screen shown in Figure 2. Continue through the installer and

read the instructions. The PC and PCB should not be connected via

the USB port until after the installation has completed.

Hardware Setup

• Connect the USB 2.0 Cable to the PC first, and then to the

Evaluation Board

• The computer may ask about installing software for new found

hardware; select “Yes, this time only”

• On the following screen, it will ask about how to install

hardware. Select the recommended option (Installing from CD)

and follow the directions

• The USB is the only connector needed

Running the Program for DPM

Multi-Site Software

• To run the program, go to the “Start” menu and choose the

isl28022_DpmMultiSiteEvalBrd folder, and then choose the

isl28022_DpmMultiSiteEvalBrd icon. Once clicked, the demo

software window should appear as illustrated in Figure 3.

- Enable communication between the evaluation board and the

computer by pressing the “Connect to Device” button at the

bottom center of the software window. If connection is

successful, the text on the button will be red and read

“Disconnect Device”. Otherwise, the button text will not

change.

- The evaluation program controls and measures 8 individual

ISL28022 devices on a single I²C/SMBus. The main software

window displays all sites/channels in one window. The

reading and setup displayed on Channel 1 of the software

window represents the measurements from the DPM_S1

block of the evaluation board. The pairings between software

output and evaluation board location continue in a logical

manor such that Channel 2 mates to DPM_S2, Channel 3

mates to DPM_S3, etc.

• Data Collecting

- To start collecting data, press the “Start Data Collecting”

button located to the left of the “Connect to Device” button at

the bottom of the screen. Once pressed, the color of the text

and verbiage of the button will change to “Stop Data

Collecting”. The default state of the software reads each DPM

for shunt and bus voltages. To change the read settings of the

DPM, toggle the check box/label next to each numerical read

out. The backlight of the display will toggle between yellow

and gray. A backlight of yellow means a channel is enabled. A

change in the functionality of the DPM will change the mode

value for the respective channel. The mode of each DPM is

displayed in the lower left hand corner of each channel’s

display. Figure 4 represents a zoomed in view of a single DPM

interface.

FIGURE 2. INSTALLATION WELCOME SCREEN

Application Note 1811

April 16, 2013

AN1811.0

• DPM Measurement Functionality

- Enabling the current functional block on the DPM interface

requires the user to enter a shunt resistor value. The entered

value is stored in the DPM calibration register and is used to

calculate the current or power depending on the enabled

check box. Figure 5 illustrates the dialog box that request

the shunt resistor value when current functionality is

enabled.

• ADC Range and Timing Controls

- The BRNG (Bus Voltage Range) and PGA (Shunt Voltage

Range) combo boxes control the full-scale measurement

range setting of the DPM. The BRNG range spans from 60V to

16V. The PGA has full scale ranges from ±300mV to ±40mV.

- The SADC (shunt acquisition time) and BADC (Bus

acquisition time) change the speed at which the DPM

measures either the bus or shunt channels. Faster

acquisition times reduce the resolution of the

measurement. ADC acquisition times equal to 532µs and

greater have 15 bits of resolution while 84µs of acquisition

time represents 12 bits of resolution.

FIGURE 3. ISL28022 DPM DEMO SOFTWARE WINDOW

FIGURE 4. SINGLE DPM INTERFACE

FIGURE 5. CURRENT SENSE DIALOG BOX

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ISL28022MBEV1Z

Mfr. #:

Buy ISL28022MBEV1Z

Manufacturer:

Renesas / Intersil

Description:

Power Management IC Development Tools Digital Power Monitor

Lifecycle:

New from this manufacturer.

Delivery:

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ISL28022MBEV1Z