Linear DC1543A Demo Manual Download Page 8

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dc1543afa

DEMO MANUAL DC1543A

Linear Technology  Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417 

(408) 432-1900 

 FAX: (408) 434-0507 

 

www.linear.com

© 

LINEAR TECHNOLOGY CORPORATION 2011

LT 1112 REV A • 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.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC 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. 

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 applica-
tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Copyright © 2004, Linear Technology Corporation

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Summary of Contents for DC1543A

Page 1: ...SUMMARY BOARD PHOTO protection inputlatching non latchingovervoltageprotec tion andlatching non latchingovertemperatureprotection Higherefficiencyatlowloadcurrentsisachievedbysetting the MODE pin jum...

Page 2: ...t the load current from 0A to 10A Observe the output voltage regulation ripple voltage efficiency and other parameters Output voltage ripple may be measured at J6withaBNCcableandoscilloscope Theprobec...

Page 3: ...Setup LOAD VIN Note Demo circuit 1543A demonstrates a functional but outdated square pad layout for LTM4641 Refer to the design files recommending round pads for future PCB designs available at www li...

Page 4: ...z 6 0VOUT 660kHz 0 9VOUT 235kHz 1 0VOUT 255kHz 1 2VOUT 285kHz 1 5VOUT 315kHz OUTPUT CURRENT A 0 EFFICIENCY 1 6 7 8 9 10 2 3 4 5 1 8VOUT 325kHz 2 5VOUT 335kHz 3 3VOUT 360kHz 5 0VOUT 550kHz 6 0VOUT 660k...

Page 5: ...re 29 4 C No Forced Air Flow Figure 4 Thermal Image of LTM4641 Figure 3 Measured Load Transient Responses VOUT 50mV DIV IOUT_STEP 4A DIV 3b VIN 12V VO 1 0V 0A to 4A Load Step VOUT 20mV DIV IOUT_STEP 4...

Page 6: ...0603 VISHAY CRCW06033K16FKEA 13 1 R28 RES CHIP 24 9k 1 16W 1 0603 VISHAY CRCW060324K9FKEA 14 1 R10 RES CHIP 1 78M 1 16W 1 0603 VISHAY CRCW06031M78FKEA 15 1 R24 RES CHIP 13k 1 16W 1 0603 VISHAY CRCW06...

Page 7: ...r com 2 Monday May 21 2012 1 1 HZ YAN L N A LTM4641EY DEMO CIRCUIT 1543A REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV YAN L PRODUCTION 2 6 22 11 __ REVISION HISTORY DESCRIPTION DATE APPROVED ECO...

Page 8: ...IS 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 t...

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