Texas Instruments SLUU477 User's Manual
Contents
1. I TEXAS INSTRUMENTS www ti com Bill of Materials Board Layout and Schematics 4 Bill of Materials Board Layout and Schematics 4 1 Bill of Materials Table 4 Bill of Materials 001 RefDes Value Description SIZE Part Number MFR 1 C1 10 uF Capacitor Ceramic 25V X7R 10 1206 STD STD 2 C2 C4 0 1 uF Capacitor Ceramic 25V X7R 10 0603 STD STD 1 C3 10 uF Capacitor Ceramic 6 3V X7R 10 0805 STD STD 0 C5 C6 Open Capacitor Ceramic 25V X7R 10 0603 STD STD 2 D1 D2 LTST C190CKT Diode LED Red 1 8 V 20 mA 20 mcd 0603 LTST C190CKT Liteon 1 D3 BZX84C5V1 7 Diode Zener 5 1V 350 mW SOT 23 BZX84C5V1 7 Diodes 1 Ji PECO2SAAN Header Male 2 pin 100mil spacing 0 100 inch x 2 PECO2SAAN Sullins 1 J2 ED555 3DS Terminal Block 3 pin 6 A 3 5mm 0 41 x 0 25 inch ED555 3DS OST 1 J3 PECO5SAAN Header Male 5 pin 100mil spacing 0 100 inch x 5 PECO5SAAN Sullins 1 J4 PECO3SAAN Header Male 3 pin 100mil spacing 0 100 inch x 3 PECO3SAAN Sullins 4 JP1 JP2 PECO2SAAN Header 2 pin 100mil spacing 0 100 inch x 2 PECO2SAAN Sullins JP3 JP4 3 ms JP6 PECO3SAAN Header 3 pin 100mil spacing 0 100 inch x 3 PECO3SAAN Sullins 1 R1 21 5k Resistor Chip 1 16W 1 0603 STD STD 2 R2 R4 1 50K Resistor Chip 1 16W 1 0603 STD STD 1 R3 750 Resistor Chip 1 16W 1 0603 STD STD 1 R5 6 65k Resistor Chip 1 16W 1 0603 Std Std 1 R6 100k Potentiometer 1 4 Cermet 12 Turn Top Adjust 0 25 x 0 17 inch 3266W 1 104LF Bourns 1 R7 4 75k2. BQ24210 data sheet SLUSA76 VO Description Table 1 I O Description Jack Description J1 VBUS Positive input J1 GND Negative input J2 BAT Charger output J2 GND Ground J2 TS Temperature qualification input J3 GND Ground J3 VDPM Programs the input voltage regulation threshold J3 CHG Charge status indication J3 EN Chip enable control J3 PG Power present indication J4 ISET Programs the fast charge current setting J4 VTSB TS bias reference voltage pin regulated output J4 GND Ground 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path SLUU477 December 2010 Submit Documentation Feedback 2010 Texas Instruments Incorporated 1 TEXAS INSTRUMENTS www ti com Introduction 1 4 Control and Key Parameters Setting Table 2 Control and Key Parameters Setting Jack Description Factory Setting JP1 Programs the fast charge current setting 500mA when JP1 ON external setting Jumper OFF external setting when JP1 OFF JP2 Connect EN and PG together when JP2 ON to enable charger when power present Jumper OFF external EN JP3 Programs the input voltage regulation threshold 4 5V when JP3 ON external setting Jumper OFF external setting when JP3 OFF JP4 Limited power charge mode LPCM when JP4 ON normal operation when JP4 OFF Jumper OFF normal operation JP5 Select external TS input or internal TS setting Jumper ON 1 2 external
3. EEE ESE 6 3 PCB Layout Guide line rs cides os esi E E A E 6 4 Bill of Materials Board Layout and Schematics ecceeeee eens ee eee cence ence eee ee ee eeeeeneeeeeeeeeeaeeeeeeeeee 7 4 1 Billtof Materials sssrini dnan a a 4 2 Board Layout socero E EE E anes 8 4 3 MCMEMMAUCS ci icicecaireetcicaccmnen E E E E a OE ane 11 List of Figures 1 Original Test Setup for HPA678 bq24210 EVM sssssssssssssssssnnnnnnrnnnnnnnnnnnnnnnnnnnnnnnnnnnnrnnnnnnnnnnn 5 2 Top ASSeMDI Y isis secant aru atin oahu aint anna ann wre E EEE EEEE E EN 8 3 Top Layar wiscicatimmitannatairanieaacitaneaieinine weaueareniranress dmaia wieimaauininw Maine atte dew emaawauaieaimed etiam inalawinaanianmetarewauiaiema ain 9 4 Bottom AY Or sind sins caainisicineinidic xninsesaaseintaiaie ainraeiaicinininislinsala alaaiatsraiacinidia naincain ase iat S E EE EE 10 5 bq24210 EVM SCHEMALIC sanicisnicininnininesiccniniennitninnitnarewitcitwiemtieienaude vee clk stieeiecie etm atneee dt oid ee cena nie ne on ntoetencinetsicimars 14 List of Tables 1 VO SDOS Crt ON ates wiceas ecaeiealh at dia cade miauiniatate E O E EN 2 2 Controland Key Parameters Setting a iccdsceiock cidaie anae a E aE EE E 3 3 Recommendd Operating Conditions siaiaictecesacicccie ciaidie acnciesra act area ae aE Nn 3 4 Bill f Materials s ssrisinnan nai ED EE 7 SLUU477 December 2010 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path 1 Submit Documentation Feedback 20
4. Resistor Chip 1 16 W 1 0603 STD STD 0 TP1 TP2 Open Test Point 0 020 Hole STD STD TP3 1 U1 BQ24210DCQ IC 800mA Single Input Single Cell Li lon Battery Solar TDFN 10 BQ24210DCQ Tl Charger with bi directional Power Path 7 Shunt 100 mil Black 0 1 929950 00 3M 1 PCB HPA678 Any 1 Label 1 25 x 0 25 inch THT 13 457 10 Brady SLUU477 December 2010 Submit Documentation Feedback 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path 2010 Texas Instruments Incorporated 7 I TEXAS INSTRUMENTS Bill of Materials Board Layout and Schematics www ti com 4 2 Board Layout 1o OO sooo Figure 2 Top Assembly 8 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path SLUU477 December 2010 Submit Documentation Feedback 2010 Texas Instruments Incorporated 1 TEXAS INSTRUMENTS www ti com Bill of Materials Board Layout and Schematics Figure 3 Top Layer SLUU477 December 2010 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path 9 Submit Documentation Feedback 2010 Texas Instruments Incorporated 1 TEXAS INSTRUMENTS Bill of Materials Board Layout and Schematics www ti com Figure 4 Bottom Layer 10 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path SLUU477 December 2010 Submit Documentation Feedback 2010 Texas Instruments Incorporated wi TEXAS INST
5. use of TI products in such safety critical applications notwithstanding any applications related information or support that may be provided by TI Further Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety critical applications TI products are neither designed nor intended for use in military aerospace applications or environments unless the TI products are specifically designated by TI as military grade or enhanced plastic Only products designated by TI as military grade meet military specifications Buyers acknowledge and agree that any such use of TI products which TI has not designated as military grade is solely at the Buyer s risk and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO TS 16949 requirements Buyers acknowledge and agree that if they use any non designated products in automotive applications TI will not be responsible for any failure to meet such requirements Following are URLs where you can obtain information on other Texas Instruments products and application solutions Products Applications Amplifiers amplifier ti com Audio www ti com audio Data Converters dataconverter ti com Autom
6. 10 Texas Instruments Incorporated I TEXAS INSTRUMENTS Introduction www ti com 1 1 1 1 2 1 3 2 Introduction EVM Features e Evaluation Module for bq24210 e 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path e Resistor programmable setting for charge current and input voltage dynamic power management e LED Indication for Status e Test Points for Key Signals Available for Testing Purpose Easy Probe Hook up e Jumpers Available Easy to Change Setting General Description The bq24210 series of devices are highly integrated Li ion linear chargers devices targeted at space limited portable applications The high input voltage range with input overvoltage protection supports low cost unregulated adapters The input voltage regulation loop with programmable input voltage regulation threshold make it suitable for charging from alternative power sources such as solar panel or inductive charging pad The IC has a single power output that charges the battery A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer The battery is charged in three phases conditioning constant current and constant voltage In all charge phases an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded For details see
7. I8 TEXAS INSTRUMENTS User s Guide SLUU477 December 2010 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path This user s guide describes the features and operation of the bq24210EVM Evaluation Module EVM The EVM assists users in evaluating the bq24210 solar chager The EVM is also called the HPA678 The manual includes the bg24210EVM bill of materials board layout and schematic Contents 1 INTODUCHION sicsjccsisiicssaiauamawalna nadie tants ev apatetaweiedwilaube halt EEEE EEEE aE 2 1 1 EVM FOAatures sjecisisinacciaaavasiircialevciaisaasdsisiatsiamasignaesinaatd EE E Ea A 2 1 2 General Descriptio cic nisicis a sien inimene a a nee aaa E en 2 1 3 VO DeSCriptiO Neies a a aa a a 2 1 4 Control and Key Parameters Setting ccceeeeeceeee eee eee ence eee eeeeneeeeeeeeeneeeneeeeeeeeeneeeeeeeaeees 3 1 5 Recommendd Operating Conditions cceceeeeeeeeee cece ee enee eee eeeeeeeeeeeeseeeeneeeeeeeaeeeeeeeeaanen 3 2 Test Summa Basel te cciatiacldtrardatatn adel EEEa N EOE oa tallancd hse E EEEE 4 2 1 DS FUTONS aise rsa aims naman ial uninjected E aas 4 2 2 Salet wccaccanaiecscnecamccmncaasma atnmarncats sac cnciale dale ncte diets nace mamatemanncatececgat ume temattahae E a 4 2 3 Quality seiorn a a a a a a nama 4 2 4 Apparel iers e 4 2 5 Equipment sieireser enea 5 2 6 Equipment Set p sssr issenensis cake cece cece need a a E EE E Ka Ea aa waaa 5 2 7 Proced re wtsccisterc aiialiaissclsicinad enoni EN EE AEE
8. JP7 Charger ON Measure V J4 VTSB 2 2V 300mV Connect 2 3 of JP5 Internal TS Adjust R6 until V JP4 1 0 7V 200mV Measure V J2 VBAT 4 2V 200mV Observe D1 PG ON D2 CHG OFF 2 7 3 Charge Current Voltage Regulation Reconnect LOAD 1 Turn on Use the constant voltage mode Connect JP1 Set the output voltage to be 2 2V Measure J2 VBAT 0 1A 50mA Observe D1 PG ON D2 CHG ON Increase the voltage of LOAD 1 to be 3 5 V Measure J2 VBAT 0 5A 100mA Observe D1 PG ON D2 CHG ON 2 7 4 VDPM Input Voltage Regulation Setting Disconnect J3 measure the resistance between J3 1 to GND 6 65KQ 10 2 7 5 Test Complete 1 TEXAS INSTRUMENTS www ti com Turn off the power supply and remove all connections from the unit under test UUT 3 PCB Layout Guideline 1 Itis critical that the exposed thermal pad on the backside of the bg24210 package be soldered to the PCB ground Make sure there are sufficient thermal vias right underneath the IC connecting to the ground plane on the other layers 2 Decoupling capacitors for VBUS BATC should make the interconnections to the IC as short as possible 3 Take the EVM layout for design reference 6 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path 2010 Texas Instruments Incorporated SLUU477 December 2010 Submit Documentation Feedback
9. RUMENTS Bill of Materials Board Layout and Schematics www ti com 4 3 Schematics L LASOV8XZE N3 o na Ldf SNA Pe O Su JON V LINOXIO NOILYONddY Na 419S O O 4S9 9 SUS aan 2d Na Zano O Cdl ldl anvo anor i ii anro anol to T Sale 60 eo el v3 0 V i v8 0 Y iva AC AO SNA A8L AS S Ir aN9 8S1 Jas Figure 5 bq24210 EVM Schematic 11 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path SLUU477 December 2010 Submit Documentation Feedback 2010 Texas Instruments Incorporated Evaluation Board Kit Important Notice Texas Instruments Tl provides the enclosed product s under the following conditions This evaluation board kit is intended for use for ENGINEERING DEVELOPMENT DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use Persons handling the product s must have electronics training and observe good engineering practice standards As such the goods being provided are not intended to be complete in terms of required design marketing and or manufacturing related protective considerations including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards This evaluation board kit does not fall withi
10. TS 1 2 External TS input 2 3 Internal TS setting JP6 The pull up power source supplies for the LEDs Jumper ON 2 3 VBUS 1 2 BAT 2 3 VBUS JP7 Charger ON OFF command Jumper ON 1 2 charger OFF 1 2 OFF 2 3 ON 1 5 Recommendd Operating Conditions Table 3 Recommendd Operating Conditions Description Min Typ Max Unit Notes Supply voltage Vsus Input voltage 4 5 7 3 V Battery voltage Vaart Voltage applied at VBAT terminal of J2 0 4 2 V Supply current Maximum input current 0 0 8 A Charge current long Battery charge current 0 0 8 A Operating junction temperature 0 125 C range T An external resistor is used to program the VBUS_DPM The programming resistor Ryppy is dictated by the following equation VBUS_ppw VBUS_ppw_1 R VREM KVBUS_ ppm Where VBUS_ppv is the desired input voltage regulation voltage threshold VBUS_ppw_ is the built in offset threshold nominally 3 5V Kysus ppm iS a gain factor found in the electrical specification If VDPM pin is shorted to VSS the VBUS_ pp should be clamped to 3 65V If the VDPM pin is floated open circuit the IC operates in Battery Tracking Mode In this case VBUS DPM threshold is internally set as V q which is BAT 100mV BAT gt 3 65V or 3 75V BATS3 4V Connecting JP3 set 4 5V VDPM on EVM An external resistor is used to program the output current 50 800mA The equation for charge cu
11. ant current and constant voltage mode Or equivalent 2 5 3 Meters Four Fluke 75 multi meters equivalent or better Or Two equivalent voltage meters and two equivalent current meters The current meters must be capable of measuring 1A current 2 6 Equipment Setup Set the power supply 1 PS 1 for 6 5V 200mVDC 1A 0 1A current limit and then turn off supply Connect the output of PS 1 in series with a current meter multi meter to J1 VBUS GND Connect a voltage meter across J1 VBUS GND Connect Load 1 in series with a current meter to J2 VBAT GND Turn off Load 1 Connect a voltage meter across J2 VBAT GND Check all jumper shunts JP1 OFF JP2 OFF JP3 OFF JP4 OFF JP5 connect 1 2 External TS JP6 connect 2 3 VBUS JP7 connect 1 2 charger OFF OF ON CON gt BQ24210 EVM HPA678 APPLICATION CIRCUIT Figure 1 Original Test Setup for HPA678 bq24210 EVM SLUU477 December 2010 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path 5 Submit Documentation Feedback 2010 Texas Instruments Incorporated PCB Layout Guideline 2 7 Procedure 2 7 1 Power Supply Make sure EQUIPMENT SETUP steps are followed Disconnect LOAD 1 Turn on PS 1 Measure V J1 VBUS 6 5V 200mV Measure V J2 VBAT OV 200mV Measure V J4 VTSB OV 200mV Observe D1 PG ON D2 CHG OFF 2 7 2 Charger Enable and Battery Detection Connect JP1 Connect 2 3 of
12. e User s Guide and specifically the Warnings and Restrictions notice in the User s Guide prior to handling the product This notice contains important safety information about temperatures and voltages For additional information on Tl s environmental and or safety programs please contact the TI application engineer or visit www ti com esh No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products or services might be or are used FCC Warning This evaluation board kit is intended for use for ENGINEERING DEVELOPMENT DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules which are designed to provide reasonable protection against radio frequency interference Operation of this equipment in other environments may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required to correct this interference EVM Warnings and Restrictions It is important to operate this EVM within the input voltage range of 4 5 V to 7 3 V and the output voltage range of OV to 4 2 V Exceeding the specified input range may cause
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14. n the scope of the European Union directives regarding electromagnetic compatibility restricted substances ROHS recycling WEEE FCC CE or UL and therefore may not meet the technical requirements of these directives or other related directives Should this evaluation board kit not meet the specifications indicated in the User s Guide the board 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 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 The user assumes all responsibility and liability for proper and safe handling of the goods Further the user indemnifies TI 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 EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES TI currently deals with a variety of customers for products and therefore our arrangement with the user is not exclusive Tl assumes no liability for applications assistance customer product design software performance or infringement of patents or services described herein Please read th
15. or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty Except where mandated by government requirements testing of all parameters of each product is not necessarily performed TI assumes no liability for applications assistance or customer product design Customers are responsible for their products and applications using TI components To minimize the risks associated with customer products and applications customers should provide adequate design and operating safeguards TI does not warrant or represent that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a th
16. otive www ti com automotive DLP Products www dlp com Communications and www ti com communications Telecom DSP dsp ti com Computers and www ti com computers Peripherals Clocks and Timers www ti com clocks Consumer Electronics www ti com consumer apps Interface interface ti com Energy www ti com energy Logic logic ti com Industrial www ti com industrial Power Mgmt power ti com Medical www ti com medical Microcontrollers microcontroller ti com Security www ti com security RFID www ti rfid com Space Avionics amp www ti com space avionics defense Defense RF IF and ZigBee Solutions www ti com lprf Video and Imaging www ti com video Wireless www ti com wireless apps Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2010 Texas Instruments Incorporated
17. rnal jumper Jxx terminals are open Internal jumper Jxx adjacent terminals marked as YY are shorted Check specified parameters A B If measured values are not within specified limits the unit under test has failed Observe if A B occur If they do not occur the unit under test has failed Assembly drawings have location for jumpers test points and individual components Safety 1 Safety Glasses are to be worn 2 This test must be performed by qualified personnel trained in electronics theory and understand the risks and hazards of the assembly to be tested 3 ESD precautions must be followed while handling electronic assemblies while performing this test 4 Precautions should be observed to avoid touching areas of the assembly that may get hot or present a shock hazard during testing Quality 1 Test data shall be made available upon request by Texas Instruments Apparel 1 Electrostatic smock 2 Electrostatic Gloves or finger cots 3 Safety Glasses 4 Ground ESD wrist strap 800mA Single Input Single Cell Li lon Battery Solar Charger with Power Path SLUU477 December 2010 Submit Documentation Feedback 2010 Texas Instruments Incorporated 1 TEXAS INSTRUMENTS www ti com Test Summary 2 5 Equipment 2 5 1 Power Supplies Power Supply 1 PS 1 a power supply capable of supplying 20 V at 1 A is required 2 5 2 Loads LOAD 1 A 20V or above 1A or above electronic load that can operate at const
18. rrent is rR Kiset ISET lout 2 Where lour is the desired fast charge current Kiser is a gain factor found in the spec The termination and pre charge current are internally set at 10 and 20 of fast charge current respectively The pre charge to fast charge Vow threshold is set to 2 5V Connecting JP1 set 500mADC for fast charge current and 100mADC for pre charge current on EVM SLUU477 December 2010 800MA Single Input Single Cell Li lon Battery Solar Charger with Power Path 3 Submit Documentation Feedback 2010 Texas Instruments Incorporated Test Summary 2 2 1 2 2 2 3 2 4 4 Test Summary Definitions I TEXAS INSTRUMENTS www ti com This procedure details how to configure the HPA678 evaluation board On the test procedure the following naming conventions are followed VXXX LOADW V TPyyy V Jxx V XXX V XXX YYY I JJXX YYY Jxx BBB Jxx ON Jxx OFF Jxx YY ON Measure A B Observe A B External voltage supply name VBUS VBAT External load name LOADR LOADI Voltage at internal test point TPyyy For example V TP1 means the voltage at TP1 Voltage at jack terminal Jxx Voltage at XXX For example V VDPM means the voltage at the test point which is marked VDPM Voltage across point XXX and YYY Current going out from the YYY terminal of jack XX Terminal or pin BBB of jack xx Internal jumper Jxx terminals are shorted Inte
19. unexpected operation and or irreversible damage to the EVM If there are questions concerning the input range please contact a TI field representative prior to connecting the input power Applying loads outside of the specified output range may result in unintended operation and or possible permanent damage to the EVM Please consult the EVM User s Guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 60 C The EVM is designed to operate properly with certain components above 125 C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching transistors pass transistors and current sense resistors These types of devices can be identified using the EVM schematic located in the EVM User s Guide When placing measurement probes near these devices during operation please be aware that these devices may be very warm to the touch Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2010 Texas Instruments Incorporated IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl reserve the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product
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