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dc2042af

DEMO MANUAL DC2042A

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 0213 • 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 LTC2935-2

Page 1: ...on a chip Energy Micro STK development kit L LT LTC LTM Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation All other trademarks are the property of their...

Page 2: ...EY locations that guarantee proper interconnect of compatible adaptor boards J1 Energy Micro STK Header does not have a KEY J2 Dust Mote Header has a KEY in position 5 J3 Horizontal Transducer Header...

Page 3: ...serve the voltage on VM1 and VM2 The voltage on VM1 should be approximately 5 77V and on VM2 should be 3 3V 12 UseVM3toobservethevoltageonJP5 2 Thevoltage should be equal to the same level observed on...

Page 4: ...NUAL DC2042A QUICK START PROCEDURE Figure 2 VMCU Power Switchover Test Setup Test Steps 2 to 5 Figure 3 Solar Circuitry Test Setup Test Steps 6 to 9 Proper Measurement Equipment Setup for DC2042A Sola...

Page 5: ...ctric Circuitry Test Setup Test Steps 10 to 13 Proper Measurement Equipment Setup for DC2042A Piezoelectric Circuit Testing Figure 5 4mA to 20mA Loop Circuitry Test Setup Test Steps 14 to 17 Proper Me...

Page 6: ...6 dc2042af DEMO MANUAL DC2042A QUICK START PROCEDURE Figure 6 TEG Powered Circuitry Test Setup Test Steps 18 to 22 Proper Measurement Equipment Setup for DC2042A TEG Circuit Testing...

Page 7: ...2af DEMO MANUAL DC2042A QUICK START PROCEDURE Figure 7a DC2042A Top Assembly Drawing Figure 7b DC2042A Bottom Assembly Drawings J3 HORIZONTAL TRANSDUCER HEADER J4 VERTICAL TRANSDUCER HEADER J2 DUST EH...

Page 8: ...is lost It will be charged up to the maximum VAUX clamp voltage typically 5 25V The 100 F capacitors have a voltage coefficient of 0 47 at 5 25V Caution Only JP9 or JP10 may be connected at any one ti...

Page 9: ...tal insert in header to ensure proper in sertion location and orientation No electrical connection Pin 6 VBAT Raw battery voltage from to DUST board Pin 7 RSVD Reserved for future use no connection on...

Page 10: ...ween the 3 15V and 2 25V levels The optional components R1 R4 Q1 and C5 shown on the schematic are not populated for a standard assembly The function of R1 R4 Q1 and C5 is to generate a short PGOOD pu...

Page 11: ...o be changed so the turn on threshold is below the PGOOD_LTC3108 turn on threshold of 3 053V For example by changing R36 to a 0 jumper and R5 to NOPOP the turn on threshold for Q3 will be 2 99V ris in...

Page 12: ...mplete operational description of and how to use the independent PGOOD signal PGOOD_LTC3459 shown in Figure 12 generated by the LTC2935 2 and available on JP8 ThePGOOD_LTC3459signalisalwaysusedtoswitc...

Page 13: ...the LTC2935 2 was used to generate a PGOOD function with an adjustable hysteresis window TheNOPOPand0 resistorsaroundtheLTC2935 2allow forcustomizationofthePGOODthresholdsandhysteresis window By usin...

Page 14: ...14 dc2042af DEMO MANUAL DC2042A APPLICATION INFORMATION Figure 11 Detailed Schematic of LTC3459 Supplied by a Solar Cell Figure 12 Detailed Schematic of PGOOD_LTC3459 Circuit Using LTC2935 2...

Page 15: ...se as needed when the light level is insufficient to power the wireless sensor node continuously The scope photos show in Figures 14 through 17 how the supply voltage on theDC9003A Bisswitchedbetweent...

Page 16: ...6 dc2042af DEMO MANUAL DC2042A APPLICATION INFORMATION Figure 14 DC2042A LTC3459 Operation at 100 lux with Indy4100 Solar Panel Figure 15 DC2042A LTC3459 Operation at 210 lux with Indy4100 Solar Panel...

Page 17: ...7 dc2042af DEMO MANUAL DC2042A APPLICATION INFORMATION Figure 16 DC2042A LTC3459 Operation at 275 lux with Indy4100 Solar Panel Figure 17 DC2042A LTC3459 Operation at 300 lux with Indy4100 Solar Panel...

Page 18: ...L1 OPT INDUCTOR 22 H 0 70A 185m 4 8mm x 4 8mm WURTH 744043220 19 1 L2 INDUCTOR 10 H 560mA 0 205 3 8mm x 3 8mm WURTH 744031100 20 0 L2 OPT INDUCTOR 10 H 650mA 0 205 3 8mm x 3 8mm SUMIDA CDRH3D18NP 100...

Page 19: ...CHIP 4 99k 1 1 16W 0402 100ppm C VISHAY CRCW04024K99FKED 6 0 R2 R7 R9 R10 R11 R12 R14 R15 R18 R31 R32 R33 R36 RES CHIP 0402 NOPOP 7 0 R4 OPT RES CHIP 50 5k 1 1 16W 0402 100ppm C VISHAY CRCW040250K5FKE...

Page 20: ...20 dc2042af DEMO MANUAL DC2042A SCHEMATIC DIAGRAM...

Page 21: ...ogy Corporation is believed to be accurate and reliable However noresponsibilityisassumedforitsuse LinearTechnologyCorporationmakesnorepresenta tion that the interconnection of its circuits as describ...

Page 22: ...DING 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 CONS...

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