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Analog Devices Linear Technology DC2691A Manual
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Analog Devices Linear Technology DC2691A Manual

Analog Devices Linear Technology DC2691A Manual

Demo manual, ltc2972 programming board for 2-channel pmbus power system manager
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DESCRIPTION
The DC2691A programming board contains the cir-
cuitry needed to program and verify the EEPROM of the
LTC
2972. It is shipped with a clamshell style program-
®
ming socket installed. The LTpowerPlay
corresponds to the factory default configuration can be
found in the GUI.
To properly program and verify the contents of the
EEPROM, download and install the LTpowerPlay software
(GUI).
http://www.linear.com/ltpowerplay/
You also need a Linear Technology DC1613 USB to I
SMBus/PMBus Controller.
Demo System Required Hardware
Windows PC
n
2
USB-to-I
C/SMBus/PMBus Controller (DC1613)
n
DC2691A
n
Demo System Required Software
LTpowerPlay
n
Programming Board for 2-Channel PMBus
*.proj file that
®
Figure 1. LTC2972 Programming Setup Using DC2691A
DEMO MANUAL DC2691A
Power System Manager
Power System Manager Features
Sequence, Trim, Margin, Supervise Power Supplies
n
Manage Faults, Monitor Telemetry, Create Fault Logs
n
PMBus Compliant Command Set
n
Supported by LTpowerPlay GUI
n
Margin or Trim Supplies to ±0.25% Accuracy
n
Monitor Input Current (±1%) and Accumulate Energy
n
Fast OV/UV Supervisors per Channel
n
Supports Multi-Channel Fault Management
n
Automatic Fault Logging to Internal EEPROM
n
Operates Autonomously without Additional Software
n
2
C/
OV/UV V
and One V
n
OUT
Monitor V
, V
n
IN
Time-Based Output Sequencer
n
2
I
C/SMBus Serial Interface
n
Can Be Powered from 3.3V, or 4.5V to 15V
n
Connect Directly to Regulator IMON Pins
n
Available in a 44-Pin 6mm × 7mm QFN Package
n
Design files for this circuit board are available at
http://www.linear.com/demo/DC2691A
L, LT, LTC, LTM, Linear Technology, the Linear logo and LTpowerPlay are registered
trademarks of Analog Devices, Inc. All other trademarks are the property of their respective
owners.
LTC2972
Supervisor
IN
, I
, I
and Temperature
OUT
IN
OUT
dc2691af
1

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Summary of Contents for Analog Devices Linear Technology DC2691A

  • Page 1 Design files for this circuit board are available at LTpowerPlay http://www.linear.com/demo/DC2691A L, LT, LTC, LTM, Linear Technology, the Linear logo and LTpowerPlay are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their respective owners. Figure 1. LTC2972 Programming Setup Using DC2691A dc2691af...
  • Page 2 DEMO MANUAL DC2691A DC2691A DETAILS What You Can Do with the DC2691A 1. Compare the contents of the LTC2972’s EEPROM against any LTpowerPlay Project File. (Verify) 2. Program the contents of the LTC2972’s EEPROM using any LTpowerPlay Project File. (Program and Verify) Figure 2.
  • Page 3 DEMO MANUAL DC2691A LTPOWERPLAY GUI SOFTWARE LTpowerPlay is a powerful Windows-based development rails. LTpowerPlay utilizes the DC1613 I C/SMBus/PMBus environment that supports Linear Technology Power Controller to communicate with one of many potential System Management ICs with EEPROM. The software targets, including the DC2691A programming board or a supports a variety of different tasks.
  • Page 4 DEMO MANUAL DC2691A QUICK START PROCEDURE The DC2691A programming board makes it easy to pro- 3. Open the socket lid. Place the IC inside with pin 1 gram and verify the EEPROM contents of the device. located in the upper left corner. See Figure 4. 1.

  • Page 5: Quick Start Procedure

    DEMO MANUAL DC2691A QUICK START PROCEDURE 4. Close lid. It will snap into place. See Figure 5. 5. Set the power switch S1 to the ON position. The VDD33 LED will illuminate, indicating the on-chip regulator is NOTE: Removal and insertion of the IC should be done providing internal power.
  • Page 6 DEMO MANUAL DC2691A QUICK START PROCEDURE 7. Click the Program and Verify button, and wait for the 8. Prior to removing the device from the socket, set the process to complete. power switch, S1, to the off position to remove power from the device.

  • Page 7: Schematic Diagram

    DEMO MANUAL DC2691A SCHEMATIC DIAGRAM dc2691af Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
  • Page 8 DEMO MANUAL DC2691A DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use.