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? 2002 microchip technology inc. ds51267a information contained in this publication regarding device applications and the like is intended by way of suggestion only. no representation or warranty is given and no liability is assumed by microchip technology incorporated with respect to the accuracy or use of such information. use of microchip?s products as critical components in life support systems is not authorized except with express written approval by microchip. ? 2002 microchip technology incorporated. all rights reserved. the microchip logo, name, pic, and picmicro are registered trademarks of microchip technology incorporated in the u.s.a. and other countries. all product/company trademarks mentioned herein are the property of their respective com- panies. filterlab is a trademark of microchip technology in the u.s.a. and other countries. mcp7382x evaluation kit user?s guide supports the following devices: ? mcp73826 ? MCP73827 ? mcp73828
mcp7382x evaluation kit user?s guide ds51267a ? 2002 microchip technology inc.
12 mcp7382x eval kit user?s guide table of contents ? 2002 microchip technology inc. ds51267a-page iii preface.........................................................................................................v chapter 1. product overview and installation .......................................1 1.1 introduction ..................................................................................... 1 1.2 highlights ........................................................................................ 1 1.3 what the mcp7382x evaluation board is ...................................... 1 1.4 mcp7382x evaluation board kit components .............................. 2 chapter 2. mcp7382x evaluation board ................................................3 2.1 description ...................................................................................... 3 2.2 features .......................................................................................... 3 2.3 getting started ................................................................................ 4 2.4 detailed description ........................................................................ 5 appendix a. schematic and board layouts ..........................................9 a.1 introduction ..................................................................................... 9 a.2 highlights ........................................................................................ 9 a.3 board schematic ......................................................................... 10 a.4 board layout - top assembly ..................................................... 11 a.5 board layout - top layer ........................................................... 12 a.6 board layout - bottom layer ...................................................... 13 appendix b. bill of materials (bom).....................................................15 worldwide sales and service .................................................................18
mcp7382x eval kit user?s guide ds51267a-page iv ? 2002 microchip technology inc.
? 2002 microchip technology inc. ds51267a-page v mcp7382x eval kit user?s guide 12 preface introduction this section contains general information that will be useful to know before using the mcp7382x evaluation board. this board currently supports the following devices: ? mcp73826, MCP73827, mcp73828 highlights this section covers the following topics: ? about this guide ? recommended reading ? the microchip internet web site ? customer support about this guide document layout this document describes how to use the mcp7382x evaluation board. the user?s guide layout is as follows: ? chapter 1: system overview and installation ? important information on how to use the mcp7382x evaluation board. ? chapter 2: overview of the mcp7382x evaluation board ? for users evaluating the mcp73826, MCP73827, or mcp73828 devices, this chapter describes how to use the various features of the hardware appendices: ? appendix a: schematic and board layouts ? shows the schematic and layout diagrams for the mcp7382x evaluation board ? appendix b: bill of materials ? lists the parts used to build the mcp7382x evaluation kit ? worldwide sales and service ? gives the address, telephone and fax number for microchip technology inc. sales and service locations throughout the world
mcp7382x eval kit user?s guide ds51267a-page vi ? 2002 microchip technology inc. recommended reading this user?s guide describes how to use the mcp7382x evaluation board. for more information regarding the mcp7382x devices, the following are recommended reading. mcp7382x data sheets these data sheets provide detailed information regarding the mcp7382x single cell lithium-ion charge management controllers: ? mcp73826 data sheet, ds21705 ? MCP73827 data sheet, ds21704 ? mcp73828 data sheet, ds21706 readme files contains the latest information on the mcp7382x evaluation board. mcp7382x evaluation kit user?s guide (ds51267a) technical library cd-rom (ds00161) this cd-rom contains comprehensive application notes, data sheets, and technical briefs for all microchip products. to obtain this cd-rom, contact the nearest microchip sales and service location (see back page). microchip web site our web site (http://www.microchip.com) contains a wealth of documentation. individual data sheets, application notes, tutorials and user?s guides are all available for easy download. all documentation is in adobe acrobat (pdf) format. microsoft ? windows ? manuals this manual assumes that users are familiar with the microsoft windows operating system. many excellent references exist for this software program and should be consulted for general operation of windows.
? 2002 microchip technology inc. ds51267a-page vii preface the microchip internet web site microchip provides on-line support on the microchip world wide web (www) site. the web site is used by microchip as a means to make files and information easily available to customers. to view the site, the user must have access to the internet and a web browser, such as netscape ? communicator or microsoft ? internet explorer ? . files are also available for ftp download from our ftp site. connecting to the microchip internet web site the microchip web site is available by using your favorite internet browser to attach to: http://www.microchip.com the file transfer site is available by using an ftp program/client to connect to: ftp://ftp.microchip.com the web site and file transfer site provide a variety of services. users may download files for the latest development tools, data sheets, application notes, user's guides, articles, and sample programs. a variety of microchip specific business information is also available, including listings of microchip sales offices, distributors and factory representatives. other data available for consideration is: ? latest microchip press releases ? technical support section with frequently asked questions ? design tips ? device errata ? job postings ? microchip consultant program member listing ? links to other useful web sites related to microchip products ? conferences for products, development systems, technical information and more ? listing of seminars and events
mcp7382x eval kit user?s guide ds51267a-page viii ? 2002 microchip technology inc. customer support users of microchip products can receive assistance through several channels: ? distributor or representative ? local sales office ? field application engineer (fae) ? corporate applications engineer (cae) ? hot line customers should call their distributor, representative or field application engineer (fae) for support. local sales offices are also available to help customers. see the back cover for a listing of sales offices and locations. corporate applications engineers (caes) may be contacted at (480) 792-7627. in addition, there is a systems information and upgrade line. this line provides system users a listing of the latest versions of all of microchip's development systems software products. pl us, this line provides information on how customers can receive any currently available upgrade kits. the hot line numbers are: ? 1-800-755-2345 for u.s. and most of canada, and ? 1-480-786-7302 for the rest of the world.
? 2002 microchip technology inc. ds51267a-page 1 mcp7382x eval kit user?s guide 12 chapter 1. product overview and installation 1.1 introduction this chapter provides an overview of the mcp7382x evaluation board, and instructions on how to connect the system components. 1.2 highlights this chapter covers the following topics: ? what the mcp7382x evaluation board is ? mcp7382x evaluation board kit components 1.3 what the mcp7382x evaluation board is the mcp7382x evaluation board is an evaluation and demonstration tool for microchip technology?s mcp7382x single cell lithium-ion charge management controllers. the design provides for dynamic versatility while being able to handle accurate measurements. when connected, this evaluation board allows for the evaluation of the mcp7382x devices in a variety of applications.
mcp7382x eval kit user?s guide ds51267a-page 2 ? 2002 microchip technology inc. 1.4 mcp7382x evaluation kit components the mcp7382x evaluation kit contains: ? mcp7382x evaluation board ? mcp73826-4.2vch, MCP73827-4.2vua, and mcp73828-4.2vua devices installed ? mcp73826 datasheet, ds21705 ? MCP73827 datasheet, ds21704 ? mcp73828 datasheet, ds21706 ? mcp7382x eval kit user?s guide, ds51267
? 2002 microchip technology inc. ds51267a-page 3 mcp7382x eval kit user?s guide 12 chapter 2. mcp7382x evaluation board 2.1 description the mcp7382x evaluation kit is an evaluation kit designed to support microchip?s mcp73826, MCP73827, and mcp73828 single-cell li-ion charge management devices. the evaluation kit is fully assembled and tested. the kit is useful for evaluating simple stand-alone operation or for evaluating applications interfaced with a microcontroller. 2.2 features the mcp7382x evaluation board has the following features: ? evaluation of MCP73827/28 in 8-pin msop packages ? evaluation of mcp73826 in 6-pin sot-23 package ? simple stand-alone operation or microcontroller compatible ? powered from external bench supply or voltage regulated wall cube ? surface-mount design ? fully assembled and tested
mcp7382x eval kit user?s guide ds51267a-page 4 ? 2002 microchip technology inc. 2.3 getting started the mcp7382x evaluation board is a fully functional, assembled, and tested surface mount board for evaluation of microchip?s mcp73826/27/28 single- cell li-ion battery charger devices. the following steps provide simple stand- alone operation. refer to the set-up configuration diagram below. note: do not turn on the input power until all other set-up steps are complete. 1. place a jumper on jp4 to select the appropriate device for evaluation. 2. place a jumper on jp5 to enable the appropriate device for evaluation. 3. connect an external bench supply or voltage regulated wall cube to jp1. observe correct polarity of connection. 4. connect a single cell li-ion battery pack to jp2. observe correct polar- ity of connection. 5. for mcp73828 evaluation, connect external battery pack thermistor to jp3. 6. turn-on bench supply or plug-in wall cube. 7. for MCP73827 evaluation, led d3 shall be turned off when the charge cycle transitions from controlled current mode to constant voltage mode charge. 8. for mcp73828 evaluation, led d2 shall illuminate when the battery pack is at full charge. figure 2.1: set-up configuration diagram temp pack+ pac k- + - battery pack optional thermistor connection for mcp73828 evaluation voltage regulated wall cube evaluation board mcp7382x eval bd. rev a 04-01638 jp1 +jp2+ ? jp3 jp4 jp5 jp6
? 2002 microchip technology inc. ds51267a-page 5 mcp7382x evaluation board 2.4 detailed description the mcp7382x evaluation board is set-up to evaluate simple, stand-alone, linear charging of single cell li-ion battery packs. each of the three li-ion battery chargers can be evaluated independently. the chargers provide controlled current charging followed by constant voltage charging. the mcp73826, u1, is provided in a 6-pin sot23 package and is equipped with shutdown control. the MCP73827, u2, is provided in an 8-pin msop package. in addition to shutdown control, the MCP73827 signals when the charge cycle transitions from contro lled current mode to constant voltage mode. an led, d3, is illuminated during the controlled current mode. a voltage representation of the charge current, i mon , is provided for a host microcontroller to monitor the charge profile. the mcp73828, u3, is also provided in an 8-pin msop package. in addition to shutdown control, the mcp73828 signals when the charge current has diminished below ten percent of the peak charge current. an led, d2, is illuminated indicating full charge. a thermistor input is provi ded to inhibit charging when the cell temperature is outside a pre-defined window. refer to the appropriate data sheets for details on the individual device features. 2.4.1 input source the mcp7382x evaluation board is designed to provide an output current of 1a, typical. a 5v 10%, 6w input source should be utilized to power the evaluation kit. jp1 terminal 1 is the positive input source connection. jp1 terminal 2 is the negative input source connection. higher or lower output currents can be obtained by adjusting the value of the sense resistor, r1. a corresponding higher or lower power input source may need to be utilized. care should be taken not to over stress the pass transistor, q1, with excessive power dissipation when higher output currents are desired. 2.4.2 reverse blocking protection the mcp7382x evaluation board is designed to provide reverse blocking protection in the event a reversed polarity input source is connected to jp1. the reverse blocking protection diode, d1, also ensures that a faulted or shorted input source will not adversely effect the battery pack. 2.4.3 battery headers two headers, jp2 and jp3 are used to connect to an external li-ion battery pack and optional protection thermistor. jp2 terminal 1 is the battery pack positive connection, jp2 terminal 2 is the negative battery pack connection. jp3 terminal 1 is for connection to a 10 k ohm ntc thermistor situated in the battery pack for temperature sensing. jp3 terminal 2 is the negative reference for the thermistor.
mcp7382x eval kit user?s guide ds51267a-page 6 ? 2002 microchip technology inc. 2.4.4 device support options the mcp7382x evaluation board provides evaluation of three li-ion battery chargers: mcp73826, MCP73827, or mcp73828. device selection is performed by placing shunts on jp4 and jp5 as indicated in the table below. jp4 determines which device is controlling the pass transistor. jp5 is used to enable the appropriate device. table 2.1: shunt jumpers 2.4.5 microcontroller option jp6 provides an easily accessible location for interface to a host microcontroller. the host microcontroller can be used to disable the charger, monitor charge status, monitor the charge profile, or terminate a charge. a proto-typing area is provided for generation of a self-contained microcontroller solution. 2.4.6 output voltage options the mcp7382x evaluation board is provided with a constant voltage mode output voltage of 4.2v. evaluation with a constant voltage mode output voltage of 4.1v can be achieved by replacing u1, u2, or u3 with the appropriate device. refer to the appropriate data sheets for device ordering information. caution: improper connection of the battery may result in damage to the battery and the possibility of personal injury. it is also important to avoid shorting the battery terminals together. device type jp4 shunt location jp5 shunt location mcp73826 5, 6 1, 2 MCP73827 3, 4 3, 4 mcp73828 1, 2 5, 6
? 2002 microchip technology inc. ds51267a-page 7 mcp7382x evaluation board figure 2.2: jumper locations on the mcp7382x evaluation board jp4 short across for mcp73828 short across for MCP73827 short across for mcp73826 jp5 short across for mcp73826 short across for MCP73827 short across for mcp73828 evaluation board mcp7382x eval bd. rev a 04-01638 jp1 +jp2+ ? jp3 jp4 jp5 jp6
mcp7382x eval kit user?s guide ds51267a-page 8 ? 2002 microchip technology inc. notes:
? 2002 microchip technology inc. ds51267a-page 9 mcp7382x eval kit user?s guide 12 appendix a. schematic and board layouts a.1 introduction this appendix contains the schematic and board layouts for the mcp7382x evaluation board. a.2 highlights diagrams included in this appendix: ? board schematic ? board layout - top assembly ? board layout - top layer ? board layout - bottom layer
mcp7382x eval kit user?s guide ds51267a-page 10 ? 2002 microchip technology inc. a.3 board schematic c1 0.1uf + c2 10uf + c3 10uf 1 2 jp1 1 2 jp2 1 2 jp3 r1 50milliohm q1 nds8434 d1 ma2q705 1 2 3 4 5 6 jp4 1 2 3 4 5 6 jp5 r2 22.1k r3 100k r4 100k r5 100k r7 dnp r8 0 vdrv 4 vbat 3 shdn 1 vss 2 vsns 6 vin 5 u1 mcp73826 vdrv 6 vbat 5 shdn 1 imon 4 vss 2 mode 3 vsns 7 vin 8 u2 MCP73827 vdrv 6 vbat 5 shdn 1 cd10 4 vss 2 therm 3 vsns 7 vin 8 u3 mcp73828 c4 0.1uf r6 100k r9 332 r10 332 vin vsns vout* shdn mode therm cd10 vdrv 1 2 3 4 5 6 7 8 9 10 jp6 imon vin vsns vdrv vout shdn mode imon therm cd10 vsupply d2 cd10 d3 mode r11 274k vin * vout is directly connected to the vbat pin of the dut
? 2002 microchip technology inc. ds51267a-page 11 schematic and board layouts a.4 board layout - top assembly evaluation board mcp7382x eval bd. rev a note: the v out connected on jp6 is directly connected to the v bat pin of the dut
mcp7382x eval kit user?s guide ds51267a-page 12 ? 2002 microchip technology inc. a.5 board layout - top layer
? 2002 microchip technology inc. ds51267a-page 13 schematic and board layouts a.6 board layout - bottom layer
mcp7382x eval kit user?s guide ds51267a-page 14 ? 2002 microchip technology inc. notes:
? 2002 microchip technology inc. ds51267a-page 15 mcp7382x eval kit user?s guide 12 appendix b. bill of materials (bom) table b.1: bill of materials (bom) reference designator quantity description manufacturer manufacturer part number r1 1 50 milliohm sense resistor panasonic erj-l1wkf050u r2 1 22.1 kohm, 1/10w, 1%, thick film chip, 0805 panasonic erj-6enf2212v r3, r4, r5, r6 4 22.1 kohm, 1/10w, 1%, thick film chip, 0805 panasonic erj-6enf2212v r7 0 not populated, 0805 r8 1 0.0 ohm jumper, 0805 phycomp 9c08052a0r00jlh r9, r10 2 332 ohm, 1/10w, 1%, thick film chip, 0805 panasonic erj-6enf3320v r11 1 274 kohm, 1/10w, 1%, thick film chip, 0805 panasonic erj-6enf2743v c1, c4 2 0.1 f, 25v, y5u ceramic, 0805 panasonic ecj-2vf1e104z c2, c3 2 10 f, 25v, tantalum, smc, input/output panasonic ecs-t1ec106r u1 1 lithium-ion battery charger, sot23-6 microchip mcp73826-4.2vch u2 1 lithium-ion battery charger, msop8 microchip MCP73827-4.2vua u3 1 lithium-ion battery charger, msop8 microchip mcp73828-4.2vua d1 1 1.5 a shottky diode, reverse protection panasonic ma2q705 d2, d3 2 red led, surface mount lumex sml-lx2832gc q1 1 p-channel mosfet, soic8 fairchild nds8434 jp1, jp2, jp3 3 screw header weidmuller 171602 jp4, jp5 1 dual in-line header, ?0.100, 3x2 position sullins ptc36daan 1 jp6 1 single in-line header, ?0.100, 10x1 position sullins ptc36syan 2 2 header shunts sullins stc02stan 4 bumpons - protective products 3m sj5003-0 note 1: jp4, jp5 are ordered as a 36x2 strip header. cut to fit. one for every 5 boards built. 2: jp6 is ordered as a 36x1 strip header. cut to fit. one for every 3 boards built.
mcp7382x eval kit user?s guide ds51267a-page 16 ? 2002 microchip technology inc. notes:
? 2002 microchip technology inc. ds51267a - page 17 information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. it is your responsibility to ensure that your application meets with your specifications. no representation or warranty is given and no liability is assumed by microchip technology incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. use of microchip?s products as critical com- ponents in life support systems is not authorized except with express written approval by microchip. no licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. trademarks the microchip name and logo, the microchip logo, filterlab, k ee l oq , mplab, pic, picmicro, picmaster, picstart, pro mate, seeval and the embedded control solutions company are registered trademarks of microchip technology incorporated in the u.s.a. and other countries. dspic, economonitor, fansense, flexrom, fuzzylab, in-circuit serial programming, icsp, icepic, microid, microport, migratable memory, mpasm, mplib, mplink, mpsim, mxdev, picc, picdem, picdem.net, rfpic, select mode and total endurance are trademarks of microchip technology incorporated in the u.s.a. serialized quick term programming (sqtp) is a service mark of microchip technology incorporated in the u.s.a. all other trademarks mentioned herein are property of their respective companies. ? 2002, microchip technology incorporated, printed in the u.s.a., all rights reserved. printed on recycled paper. microchip received qs-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in chandler and tempe, arizona in july 1999. the company?s quality system processes and procedures are qs-9000 compliant for its picmicro ? 8-bit mcus, k ee l oq ? code hopping devices, serial eeproms and microperipheral products. in addition, microchip?s quality system for the design and manufacture of development systems is iso 9001 certified.
ds51267a-page 18 ? 2002 microchip technology inc. m americas corporate office 2355 west chandler blvd. chandler, az 85224-6199 tel: 480-792-7200 fax: 480-792-7277 technical support: 480-792-7627 web address: http://www.microchip.com rocky mountain 2355 west chandler blvd. chandler, az 85224-6199 tel: 480-792-7966 fax: 480-792-7456 atlanta 500 sugar mill road, suite 200b atlanta, ga 30350 tel: 770-640-0034 fax: 770-640-0307 boston 2 lan drive, suite 120 westford, ma 01886 tel: 978-692-3848 fax: 978-692-3821 chicago 333 pierce road, suite 180 itasca, il 60143 tel: 630-285-0071 fax: 630-285-0075 dallas 4570 westgrove drive, suite 160 addison, tx 75001 tel: 972-818-7423 fax: 972-818-2924 detroit tri-atria office building 32255 northwestern highway, suite 190 farmington hills, mi 48334 tel: 248-538-2250 fax: 248-538-2260 kokomo 2767 s. albright road kokomo, indiana 46902 tel: 765-864-8360 fax: 765-864-8387 los angeles 18201 von karman, suite 1090 irvine, ca 92612 tel: 949-263-1888 fax: 949-263-1338 new york 150 motor parkway, suite 202 hauppauge, ny 11788 tel: 631-273-5305 fax: 631-273-5335 san jose microchip technology inc. 2107 north first street, suite 590 san jose, ca 95131 tel: 408-436-7950 fax: 408-436-7955 toronto 6285 northam drive, suite 108 mississauga, ontario l4v 1x5, canada tel: 905-673-0699 fax: 905-673-6509 asia/pacific australia microchip technology australia pty ltd suite 22, 41 rawson street epping 2121, nsw australia tel: 61-2-9868-6733 fax: 61-2-9868-6755 china - beijing microchip technology consulting (shanghai) co., ltd., beijing liaison office unit 915 bei hai wan tai bldg. no. 6 chaoyangmen beidajie beijing, 100027, no. china tel: 86-10-85282100 fax: 86-10-85282104 china - chengdu microchip technology consulting (shanghai) co., ltd., chengdu liaison office rm. 2401, 24th floor, ming xing financial tower no. 88 tidu street chengdu 610016, china tel: 86-28-6766200 fax: 86-28-6766599 china - fuzhou microchip technology consulting (shanghai) co., ltd., fuzhou liaison office unit 28f, world trade plaza no. 71 wusi road fuzhou 350001, china tel: 86-591-7503506 fax: 86-591-7503521 china - shanghai microchip technology consulting (shanghai) co., ltd. room 701, bldg. b far east international plaza no. 317 xian xia road shanghai, 200051 tel: 86-21-6275-5700 fax: 86-21-6275-5060 china - shenzhen microchip technology consulting (shanghai) co., ltd., shenzhen liaison office rm. 1315, 13/f, shenzhen kerry centre, renminnan lu shenzhen 518001, china tel: 86-755-2350361 fax: 86-755-2366086 hong kong microchip technology hongkong ltd. unit 901-6, tower 2, metroplaza 223 hing fong road kwai fong, n.t., hong kong tel: 852-2401-1200 fax: 852-2401-3431 india microchip technology inc. india liaison office divyasree chambers 1 floor, wing a (a3/a4) no. 11, o?shaugnessey road bangalore, 560 025, india tel: 91-80-2290061 fax: 91-80-2290062 japan microchip technology japan k.k. benex s-1 6f 3-18-20, shinyokohama kohoku-ku, yokohama-shi kanagawa, 222-0033, japan tel: 81-45-471- 6166 fax: 81-45-471-6122 korea microchip technology korea 168-1, youngbo bldg. 3 floor samsung-dong, kangnam-ku seoul, korea 135-882 tel: 82-2-554-7200 fax: 82-2-558-5934 singapore microchip technology singapore pte ltd. 200 middle road #07-02 prime centre singapore, 188980 tel: 65-334-8870 fax: 65-334-8850 ta iw a n microchip technology taiwan 11f-3, no. 207 tung hua north road taipei, 105, taiwan tel: 886-2-2717-7175 fax: 886-2-2545-0139 europe denmark microchip technology nordic aps regus business centre lautrup hoj 1-3 ballerup dk-2750 denmark tel: 45 4420 9895 fax: 45 4420 9910 france microchip technology sarl parc d?activite du moulin de massy 43 rue du saule trapu batiment a - ler etage 91300 massy, france tel: 33-1-69-53-63-20 fax: 33-1-69-30-90-79 germany microchip technology gmbh gustav-heinemann ring 125 d-81739 munich, germany tel: 49-89-627-144 0 fax: 49-89-627-144-44 italy microchip technology srl centro direzionale colleoni palazzo taurus 1 v. le colleoni 1 20041 agrate brianza milan, italy tel: 39-039-65791-1 fax: 39-039-6899883 united kingdom arizona microchip technology ltd. 505 eskdale road winnersh triangle wokingham berkshire, england rg41 5tu tel: 44 118 921 5869 fax: 44-118 921-5820 01/18/02 *ds51267a* w orldwide s ales and s ervice

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