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dc1989aaf

DEMO MANUAL DC1989A-A

Linear Technology  Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417  

(408) 432-1900 

 

FAX

: (408) 434-0507 

 

www.linear.com

 

LINEAR TECHNOLOGY CORPORATION 2013

LT 0813 • 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

Summary of Contents for DC1989A-A

Page 1: ...alu ationoftheDC DCconverter Tofullyexploretheextensive powersystemmanagementfeaturesofthepart download the GUI software LTpowerPlay onto your PC and use LTC s I2C SMBus PMBus dongle DC1613A to connec...

Page 2: ...r the proper scope probe technique Short stiff leads need to be soldered to the and terminals of an output capacitor The probe s ground ring needs to touch the lead and the probe tip needs to touch th...

Page 3: ...3 dc1989aaf DEMO MANUAL DC1989A A Quick Start Procedure Figure 2 Proper Measurement Equipment Setup Figure 3 Measuring Output Voltage Ripple...

Page 4: ...Quick Start Procedure Figure 4 Demo Setup with PC Figure 5 Efficiency vs Load Current at VIN 5V and VIN 12V Efficiency vs Load Current 100 90 70 80 60 50 LOAD CURRENT A EFFICIENCY 0 10 40 50 30 20 5 1...

Page 5: ...OUT0 50A Figure 10 Total Current Readback vs Load Current at VIN 12V VOUT0 1V Figure 8 Thermal Performance at VIN 12V VOUT0 1V IOUT0 50A TA 23 8 C Air Flow 200LFM VOUT0 20MHz BW 50mV DIV 25A TO 50A LO...

Page 6: ...ing up to program or tweak the power management scheme in a system or to diagnose power issues when bringing up rails LTpowerPlay utilizes the DC1613A USB to SMBus controller to communicate with one o...

Page 7: ...on from the RAM of LTM4676 and loads it into the GUI d If you want to change the output voltage to a different value like 1 5V In the Config tab type in 1 5 in the VOUT_COMMAND box like this Then clic...

Page 8: ...D PANASONIC LN1271RTR 18 1 J7 CONN HEADER 12POS 2MM STR DL PCB FCI 98414 G06 12ULF 19 1 J8 PIN HEADER 20 DUAL ROW RA M Mill Max 802 40 020 20 0001 20 1 J9 CONN SOCKET 20 DUAL ROW RA F Mill Max 803 43...

Page 9: ...992CS6 1 56 1 U8 IC LT1803IS5 S5 TSOT LINEAR TECH LT1803IS5 Additional Demo Board Circuit Components 1 0 CIN12 CIN15 CIN19 OPT CAP OPTIONAL 2 0 C1 COUT2 C2 COUT3 OPT C6 C8 C9 COUT10 C10 COUT11 C11 COU...

Page 10: ...R IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PE...

Page 11: ...PERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERIN...

Page 12: ...EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBS...

Page 13: ...EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBS...

Page 14: ...HIGH EFFICIENCY POLY PHASE DC DC STEP DOWN HZ JIAN L B LTM4676EY DEMO CIRCUIT 1989A A SIZE DATE IC NO REV SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone...

Page 15: ...APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS C...

Page 16: ...LUDING 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 CO...

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