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Hardware Overview
User's Guide
SLVU184A – March 2007 – Revised February 2008
UCD9080 Power Supply Sequencer and Monitor
Evaluation Module
This user’s guide describes how to install and operate the UCD9080 Power Supply Sequencer evaluation
module (EVM) and graphical user interface (GUI) application. The guide covers the UCD9080EVM board
functionality and installation, the I
2
C adapter, plus how to install and use the application software.
Contents
1
Hardware Overview
2
System Overview
3
GUI Overview
4
EVM Design Configuration Information
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5
EVM Schematic and Bill of Materials
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6
Related Documentation From Texas Instruments
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List of Figures
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System Block Diagram
3
GUI Main Window
4
GUI System Configuration Window
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5
GUI Rail Configuration Window
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6
GUI GPO Configuration Window
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List of Tables
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UCD9080 Jumpers
The UCD9080 Power Supply Sequencer EVM is an evaluation module from Texas Instruments for the
UCD9080 Power Supply Sequencer and Monitor. The UCD9080 is a highly configurable, 8-channel power
supply sequencer (see
data sheet) with four additional general-purpose digital outputs.
The hardware can be configured and monitored through a Windows™ interface running on a PC. The GUI
communicates with the hardware through the provided USB Interface Adapter, which acts as an I
2
C
master for the board.
This UCD9080EVM has this functionality:
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Sequencing for up to eight power supplies on the board using digital enable signals
•
Monitoring for up to eight voltage rails on the board using analog signals
•
Power supply enables can be sent off board via a header for sequencing external power supplies
(controlled using jumpers for each rail)
•
External voltage rails can be connected to a header on the board for monitoring external power
supplies (controlled using jumpers for each rail)
•
Sequencing for up to four digital outputs for reset circuits, etc.
•
Jumpers for configuring the I
2
C address of the UCD9080 (detected at start-up)
•
Standard 100-kHz I
2
C communication via I
2
C connector to USB adapter for connection to
Windows is a trademark of Microsoft Corporation.
Windows is a trademark of Microsoft Corporation.
SLVU184A – March 2007 – Revised February 2008
UCD9080 Power Supply Sequencer and Monitor Evaluation Module
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