Linear Technology DC2347A Guida rapida alla configurazione

dc2347af

DEMO MANUAL DC2347A

DESCRIPTION

LTC2937

Programming Board

The DC2347A contains only those functions necessary

to safely program and verify the LTC2937 configuration

EEPROM. It serves no other purpose. The DC2347A holds

the LTC2937 in a clamshell socket for convenient access

andreplacementofparts.TheLTpowerPlay™GUIsoftware,

running on a PC, provides a simple interface to program

and verify the EEPROM with a user supplied configuration.

What Can You Do with The DC2347A

• Program the contents of the EEPROM with your project

or HEX file.

• Verify the contents of the EEPROM against your project

or HEX file.

• Verify the contents of the EEPROM against factory

defaults.

DC2347A

• Program and Verify EEPROM for the LTC2937

• Easily Change Parts with the Clamshell Socket

• Simple Interface to the PC Using LTpowerPlay

• Powered by the USB Connection

LTC2937

• Time and Event-Based Power Supply Sequencing

• 12 Programmable Undervoltage and Overvoltage Com-

parators with 0.75% Accuracy

• Stalled Power Supply Detection

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

FEATURES

Demo System Hardware Required

• Microsoft Windows PC

• DC1613 USB to I2C/SMBus/PMBus Controller

• DC2347A Programming Board

Demo System Software Required

• LTpowerPlay (GUI)

The LTpowerPlay software can be downloaded from:

http://www.linear.com/ltpowerplay

To access technical support documents for LT C Power

System Management Products visit "Help -> View Online

Help" in the LTpowerPlay menu.

Design files for this circuit board are available at

http://www.linear.com/demo/DC2347A

• Single Wire Synchronization Allows Controller Expan-

sion to 50 Devices (300 Power Supplies)

• Configuration and Fault Logging in EEPROM

• EEPROM Rated to 85°C, 10k writes, 20 year Retention

• Supported by LTpowerPlay GUI

• Fault and System Status Registers

• Reset Output with Programmable Delay

• I2C/SMBus Interface

• Wide Input Supply Voltage Range: 2.9V to 16.5V

• 28-Pin QFN (5mm × 6mm) Package

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DEMO MANUAL DC2347A

BOARD PHOTO

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DEMO MANUAL DC2347A

QUICK START PROCEDURE

The DC2347A system makes it easy to program and verify

the contents of the LTC2937.

1. Download and install the LTpowerPlay GUI:

http://www.linear.com/ltpowerplay

2. Remove the DC2347A board from the ESD protective

bag and place it on a level surface. Connect the DC1613

I2C/SMBus/PMBus Controller to the DC2347A board

using the 12-pin ribbon cable.

Set the jumpers ASEL1, ASEL2, and ASEL3 for the

desired device I2C address. Note that each project ﬁle

contains a ﬁxed device address, which must match the

ASEL jumper settings on the board. See the LTC2937

data sheet for a discussion of device addressing.

Set the WP jumper to OFF.

Set the POWER switch to OFF.

3. Connect the USB-to-I2C/SMBus/PMBus Controller to

a USB port on your PC.

4. Insert an LTC2937 part into the clamshell socket and

verify that it is upright and not upside-down in the

socket. Close the lid; it will snap shut. Only remove

and replace ICs in the socket when the POWER switch

is OFF.

5. Applypower to the device by sliding thePOWER switch

to ON. When the part receives power it powers-up its

3.3V VDD pin, and LED1 will illuminate green. If no

part is installed in the socket, or if the part is up-side

down, the LED will not illuminate, and programming

is not possible.

6. Launch the LTpowerPlay GUI. The GUI automatically

identiﬁes the DC2347A and launches the appropriate

interface protocol.

7. If the Programming Utility does not launch automati-

cally, select LTpowerPlay→Utilities→Programming

Utility from the menu.

8. Click “…” and select a project ﬁle to program the de-

vice. Ensure that the ASEL jumpers match the device

address in the project ﬁle.

9. Click “Program and Verify System” to program the

device. Upon success, the status bar at the bottom will

turn from yellow to green and indicate “Successfully

Programmed and Veriﬁed System!”

10. After programming the LTC2937, set the POWER

switch to OFF and remove the part from the socket.

Repeat steps 4 to 9 with additional LTC2937 parts as

necessary.

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dc2347af

DEMO MANUAL DC2347A

PARTS LIST

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 3 C4, C12 CAP, CER, 100nF, X5R, 16V, 10%, 0603 MURATA, GRM188R61C104KA01D

2 1 C13 CAP, CER, 2.2µF, X5R, 16V, 10%, 0603 MURATA, GRM188R61C225KE15D

3 1 C1 CAP, CER, 1µF, X5R, 16V, 10%, 0603 MURATA, GRM188R61C105KA93D

4 1 R3 RES, 1.3k, 1/10W, 1%, 0603 VISHAY, CRCW06031K30FKEA

5 5 R1, R2, R5, R6, R7 RES, 10k, 1/16W, 1%, 0603 VISHAY, CRCW060310K0FKED

6 9 R4, R8, R9, R10, R11, R12, R13, R14, R15 RES, 0.0Ω, 1/10W, 0603 VISHAY, CRCW06030000Z0EA

7 1 LED1 LED, GREEN, 0603 PANASONIC, LNJ326W83RA

8 4 TP1, TP2, TP3, TP4 TEST POINT TURRET, 0.094" MILL-MAX, 2501-2-00-80-00-00-07-0

9 3 ASEL1, ASEL2, ASEL3 CONN, HEADER, 1x4, 0.1" SULLINS, PRPC004SAAN-RC

10 1 WP CONN, HEADER, 1x3, 0.1" SULLINS, PRPC003SAAN-RC

11 4 WP, ASEL1, ASEL2, ASEL3 SHUNT JUMPER, 0.1" 3M, 969002-0000-DA

12 1 J1 CONN, HEADER, 2x6, 2MM FCI, 98414-G06-12ULF

13 1 U4 IC SERIAL EEPROM, SOT-23-5 MICROCHIP, 24AA02T-I/OT

14 1 U1 SOCKET, CLAMSHELL, QFN PLASTRONICS, 28QN50S16050-A

15 1 S1 SW SLIDE DPDT 6VDC 0.3A PCMNT C&K COMPONENTS, JS202011CQN

16 4 STANDOFF, NYLON, SNAP-ON, 0.25" TALL KEYSTONE, 8831

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dc2347af

DEMO MANUAL DC2347A

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

1/23/2015 2:12:30 PM f=0.60 C:\Users\nenger\Documents\LTC2937\DC2347A-PROGRAMMING-BOARD\EAGLE\DC2347A-Programming.sch (Sheet: 1/1)

3 4

MARGB

VPWR

VDD

GND

ASEL1

ASEL2

ASEL3

EN1

EN2

EN3

EN4

EN5

EN6

ALERTB 15

FAULTB 16

RSTB 17

SDA 18

SCL 19

SPCLK 20

SHARE_CLK 21

WP 22

V6 23

V5 24

V4 25

V3 26

V2 27

V1 28

PAD

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dc2347af

DEMO MANUAL DC2347A

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ●FAX: (408) 434-0507 ●www.linear.com

 LINEAR TECHNOLOGY CORPORATION 2015

LT 0615 • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LT C ) 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 LT C 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.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LT C from all claims

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. LT C assumes no liability for applications assistance,

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LT C 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 LT C applica-

tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

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