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Evaluation board user manual
User manual for APPEB1002 Revision 2.1, Oct 2019
General Purpose CAP-XX Supercapacitor Evaluation Board
APPEB1002
User Manual for
APPEB1002 General
Purpose CAP-XX
Supercapacitor Evaluation
Board
Author: Henry Huang
Re v is ion 2 .1 , O c t 2 01 9
© CAP-XX Pty Limited 2019 | Tel +61 2 9420 0690 | www.cap-xx.com
Page 1 of 8
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Summary of Contents for CAP-XX Purpose
- Page 1 APPEB1002 General Purpose CAP-XX Supercapacitor Evaluation Board Author: Henry Huang Re v is ion 2 .1 , O c t 2 01 9 © CAP-XX Pty Limited 2019 | Tel +61 2 9420 0690 | www.cap-xx.com Page 1 of 8...
- Page 2 It is primarily designed to evaluate the performance of a supercapacitor for peak power or backup power delivery when coupled with any energy source. This evaluation board can handle all variants of CAP-XX supercapacitor products. It provides three distinct charging methods, two options for cell balancing and multiple test points for voltage monitoring.
- Page 3 CAP-XX supercapacitor will be explained. CAP-XX prismatic supercapacitors CAP-XX has 4 package types for the prismatic line from the smallest to the biggest they are: Z, A, W and S. These package types single and dual cell supercapacitor options.
- Page 4 The APPEB1002 board only supports single cell radial lead GY products. They can be installed as a single cell or two cells in series to form a dual cell on the PCB. CAP-XX’s radial leads GY line currently has 6 different diameters but with only three different pin pitches. The PCB through hole design for our GY cells has one positive through hole and three negative through holes for the negative pin corresponding to the different pitches.
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Page 5: Charging Options
5. Even though dual cell cylindrical modules are available from CAP-XX, the APPEB1002 requires using 2 separate single cells in series. This allows evaluation of different balancing options. The dual cell modules have their balancing circuit built in so instead of using a GY25R51B22S505R0, 5F, 5.5V dual cylindrical cell module, use 2 x... - Page 6 This must be considered when using the direct charge option. Soft-start charging To enable charging via the low-cost CAP-XX soft-start circuit, place the jumper link on the second row of the header marked Soft-start connecting pins 3 & 4 of JP1, leave solder jumper I Limiter ENABLE (SJ2) open and solder a bridge connecting Soft-Start ENABLE (SJ1) as shown in the middle of figure 6.
- Page 7 R4, R5, IC2 and R6 is the active cell balancing sub circuit. IC2 TLV8801 is a low quiescent current general purpose OPAMP, configured as a unity gain buffer. R4 and R5 set the reference voltage for the buffer and R6 limits the OPAMP output current and guarantees op amp stability into a capacitive load.
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Page 8: Further Information
This User Manual is available on the cap-XX web site. On the web site you may also find product bulletins, datasheets, SPICE models, application white papers, application briefs and design-aid calculator (http://cap-xx.com/resources/resources.htm). © CAP-XX Pty Limited 2019 | Tel +61 2 9420 0690 | www.cap-xx.com...