Linear Technology LTM4677EY User Manual

1
dc2066af
DEMO MANUAL DC2066A
DESCRIPTION
LTM4677EY
Dual 18A or Single 36A µModule Regulator
With Digital Power System Management
Demonstration circuit 2066A is a dual-output, high ef-
ficiency, high density, µModule regulator with
4.5V to
16V input range. Each output can supply 18A maximum
load current. The demo board has a LT M
®
4677 µModule
regulator, which is a dual 18A or single 36A step-down
regulator with digital power system management. Please
see the LTM4677 data sheet for more detailed information.
DC2066A powers up to default settings and produces power
based on configuration resistors without the need for any
serial bus communication. This allows easy evaluation of
the DC/DC converter. To fully explore the extensive power
system management features of the part, download the
GUI software LTpowerPlay™ onto your PC and use LTC’s
I
2
C/SMBus/PMBus dongle DC1613A to connect to the
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
BOARD PHOTO
board. LTpowerPlay allows the user to reconfigure the part
on the fly and store the configuration in EEPROM, view
telemetry of voltage, current, temperature and fault status.
GUI Download
The software can be downloaded from:
http://www.linear.com/ltpowerplay
For more details and instructions of L
TpowerPlay
, please
refer to LTpowerPlay GUI for LTM4677 Quick Start Guide.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2066A
Figure1. Dual-Output LTM4677/DC2066A Demo Circuit

Linear Technology LTM4677EY Specifications

General

Brand	Linear Technology
Model	LTM4677EY
Category	Controller
Language	English

Summary

DESCRIPTION

GUI Download

How to download and use the LTpowerPlay software for advanced configuration and monitoring.

BOARD PHOTO

PERFORMANCE SUMMARY

QUICK START PROCEDURE

Connect Input Power and Loads

Steps to connect the input power supply and output loads to the demo board for initial setup.

Configure DVMs and Set Jumpers

Connecting digital voltmeters and setting initial jumper positions for evaluation.

Verify Output Voltages

Procedure for powering up the board and checking the output voltage accuracy.

Measure Output Voltage Ripple

Guidance on proper oscilloscope probing techniques for accurate ripple measurements.

QUICK START PROCEDURE

Connecting a PC to DC2066A

Instructions on establishing PC connectivity for reconfiguring power management features.

LTpowerPlay SOFTWARE GUI

LTpowerPlay Main Interface

An overview of the LTpowerPlay software's main graphical interface and its components.

LTpowerPlay QUICK START GUIDE

Install and Launch LTpowerPlay

Steps for downloading, installing, and launching the LTpowerPlay GUI software.

Connect and Read Configuration

How to connect the demo board, read its configuration, and verify communication.

Change Output Voltage Settings

Procedure to modify output voltage parameters using the VOUT_COMMAND register.

Save Configuration and NVM

Instructions for saving configuration changes to NVM and project files.

PARTS LIST

SCHEMATIC DIAGRAM

SCHEMATIC DIAGRAM

SCHEMATIC DIAGRAM

DEMONSTRATION BOARD IMPORTANT NOTICE