Analog Devices Linear Technology DC2691A User manual

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DEMO MANUAL DC2691A
DESCRIPTION
LTC2972
Programming Board for 2-Channel PMBus
Power System Manager
The DC2691A programming board contains the cir-
cuitry needed to program and verify the EEPROM of the
LT C
®
2972. It is shipped with a clamshell style program-
ming socket installed. The LTpowerPlay
®
*.proj file that
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 I2C/
SMBus/PMBus Controller.
Demo System Required Hardware
n Windows PC
n USB-to-I2C/SMBus/PMBus Controller (DC1613)
n DC2691A
Demo System Required Software
n LTpowerPlay
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.
Power System Manager Features
n 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 OV/UV VOUT and One VIN Supervisor
n Monitor VIN, VOUT, IIN, IOUT and Temperature
n Time-Based Output Sequencer
n I2C/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
Design files for this circuit board are available at
http://www.linear.com/demo/DC2691A
Figure 1. LTC2972 Programming Setup Using DC2691A

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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. DC2691A Top Side Details

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DEMO MANUAL DC2691A
LTPOWERPLAY GUI SOFTWARE
LTpowerPlay is a powerful Windows-based development
environment that supports Linear Technology Power
System Management ICs with EEPROM. The software
supports a variety of different tasks. You can use LTpow-
erPlay to evaluate Linear Technology ICs by connect-
ing to a demo board system. LTpowerPlay can also be
used in an offline mode (with no hardware present) in
order to build a multichip configuration file that can be
saved and re-loaded at a later time. LTpowerPlay pro-
vides unprecedented diagnostic and debug features. It
becomes a valuable diagnostic tool during board bring-up
to program or tweak the power management scheme in
a system or to diagnose power issues when bringing up
rails. LTpowerPlay utilizes the DC1613 I
2
C/SMBus/PMBus
Controller to communicate with one of many potential
targets, including the DC2691A programming board or a
customer board. The software also provides an automatic
update feature to keep the software current with the latest
set of device drivers and documentation. The LTpowerPlay
software can be downloaded from:
http://www.linear.com/ltpowerplay
To access technical support documents for LTC Power
System Management products visit “Help, View Online
Help” on the LTpowerPlay menu.
Figure 3. Screenshot of the LTpowerPlay GUI

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DEMO MANUAL DC2691A
QUICK START PROCEDURE
The DC2691A programming board makes it easy to pro-
gram and verify the EEPROM contents of the device.
1. Place jumpers and switches in the following default
positions.
WP:OFF
ASEL1: L
ASEL0: L
S1: OFF
NOTE:By default, ASEL0 and ASEL1 jumpers are both
set to low (L). If you wish to program a device with
an address other than 0x5C, adjust ASEL0 and ASEL1
jumpers appropriately. Consult device data sheet for
details.
2. Connect USB controller to your PC. Plug the ribbon
cable into connector J1 of the DC2691A programming
board.
3. Open the socket lid. Place the IC inside with pin 1
located in the upper left corner. See Figure 4.
Figure 4. Open Clamshell Lid

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DEMO MANUAL DC2691A
4. Close lid. It will snap into place. See Figure 5.
NOTE:Removal and insertion of the IC should be done
with either tweezers or a vacuum suction device, and
with the power switch S1 set to OFF.
Figure 5. DC1613 Ribbon Cable Attached and Lid Closed
5. Set the power switch S1 to the ON position. The VDD33
LED will illuminate, indicating the on-chip regulator is
providing internal power.
6. Launch the LTpowerPlay software from your PC. The
LT Device Programmer window will appear. Click “…”
next to the selection box and select your .proj file to
program the device.
Figure 6. LT Device Programmer
QUICK START PROCEDURE

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DEMO MANUAL DC2691A
QUICK START PROCEDURE
7. Click the Program and Verify button, and wait for the
process to complete.
a. LTpowerPlay is ready to program/verify the device.
Figure 7. Ready To Program
b. After the process is complete, you will see “Success-
fully Programmed and Verified Device”in the status
bar at the bottom.
Figure 8. Successfully Programmed
8. Prior to removing the device from the socket, set the
power switch, S1, to the off position to remove power
from the device. The USB ribbon cable may remain
connected to programing board.
9. To program another device, repeat Steps 3 through 5,
then Steps 7 and 8. LTpowerPlay’s Programming Utility
does not need to be closed.

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DEMO MANUAL DC2691A
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.
SCHEMATIC DIAGRAM
12
GND
0.1 UF1.0 UF
0.1 UF
.01 UF
0.1 UF0.1 UF
5.49K
10K
+5V
GND
GND
GND
10K
10K
GND
1.0 OHM
GND
GND GND
GND
CONN_DC1613
24AA64
GND
GND
GND
GND
ASEL0
WP
GND GND
ASEL1
GND
+5V
LED-0603
GND
0.1 UF
10K 10K
2.0K
10.0K
10.0K
10.0K
10.0K
10.0K
LTC2972 U1
DNI
DNI
1
2
3
4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
28 29
30 31 32 33 34 35 36 37
38 39 40 41 42
43
44
C1
C2
C3
C4
C5C6
R8
R9
R5
R6
R3
J1
1 2 3 4 5 6 7 8 9
10 11 12
S1
2
3 1
S1
5
6 4
1 2 34
5
U2
1 2 3 4
ASEL0
1 2 3
WP
1 2 3 4
ASEL1
LED1
C7
R1 R2
R4
R7
R10
R11
R12
R13
GND
GND
+5VVDD33_2972 VDD33_2972
+5V_DONGLE SDA
SDA
SCL
SCL
VSENSEP0 ISENSEP0 ISENSEM0
VDAC0
VSENSEP1 ISENSEP1 ISENSEM1
VDAC1
VPWR VIN_SNS SHARE_CLK CONTROL0 SCL SDA FAULTB0 ALERTB
VOUT_EN0 VOUT_EN1
REFP
REFM
VDD33 VDD25
TSENSE1 TSENSE0
PAD
GND
FAULTB1 CONTROL1 WDI/RESET WP ASEL0
VDD33 VDD25
VSENSEM0 VSENSEM1 ASEL1
PWRGD
AUXFAULT
CH0 CH1
IIN_SNSP
IIN_SNSM
VIN_SNS_CAP
DNC
VDDIO PG0 PG1
CUSTOMER NOTICE
B
SCALE = NONE
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
PCB DES.
APP ENG. www.linear.com
-
+5V (100mA) SDA GND SCL +3.3V(100mA) ALRTB GPO_1 OUTEN GPO_2 GND AUXSCL AUXSDA
SCL GND SDA VCC
WP
PROGRAMMING BOARD FOR LTC2972
RENE S.RENE S. MIKE P.
LTC2972 A

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DEMO MANUAL DC2691A
© LINEAR TECHNOLOGY CORPORATION 2017
LT 0917 • PRINTED IN USA
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. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
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arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application
engineer.
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Copyright © 2004, Linear Technology Corporation