Semtech TSDMTX-19V3-EVM User guide

Brand: Semtech

Model: TSDMTX-19V3-EVM

Type: User guide

TSDMTX‐19V3‐EVM

 WirelessChargingTransmitter

  www.semtech.com

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WIRELESSCHARGING

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UserGuide

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LinkCharge™20Series

20WWirelessCharging

Generation(V3)Transmitter

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Introduction

The SemtechTSDMTX‐19V3‐EVMisanevaluationplatformfortestandexperimentationofawirelesscharging

transmitterbasedontheSemtechTS80003WirelessPowerTransmitterController,TS61002FETDriver,TS30011

DC/DC Converter, and TS94033 Current Sense Amplifier. This evaluation module provides a complete system

solution and is compatible with the

 Wireless Power Consortium (WPC) or Qi standards of power transmission,

makingthistransmitteranidealplatformforpoweringthemajorityofwirelessreceiversinusetoday.

Objectives

The objective of this User Guide is to provide a fast, easy and thorough method to fully test and evaluate the

Semtechsolutionsforwirelesschargingsystems.Semtechoffersarangeofsolutionstomeettheneedsofawide

range of system developers. Developers are provided with all the information

 on how this EVM was built as a

startingpointfortheirowndesignsusingtheTS80003andotherSemtechcomponents.

Features

 16‐21VInput/20WOutputPower

 WPC1.2.2compliant

 Supportsvarioussmartphonesfastchargingprotocols(withlatestfirmware)

 Supportsupto15WoutputpowerwithWPC1.2receivers

 Supportsupto20WoutputpowerwithSemtechreceivers

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Please make sure to download the latest software visit www.semtech.com/wirele ss‐charging to

downloadthelatestEVMsoftwareforyourevaluationboard

TableofContents

WirelessChargingConcepts...................................................................................................................2

ProductDescription...............................................................................................................................3

StandardUse........................................................................................................................................5

FirmwareManagement........................................................................................................................10

FODTest.............................................................................................................................................14

Documentation....................................................................................................................................15

A. BlockDiagram........................................................................................................................15

B. Schematic..............................................................................................................................16

C. BillOfMaterials“BOM”..........................................................................................................19

D. BoardLayout.........................................................................................................................21

E. BoardLayers..........................................................................................................................21

FAQs...................................................................................................................................................25

NextSteps...........................................................................................................................................26

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WirelessChargingConcepts

Wireless power transfer is, essentially, a transformer. Current is provided to a  primary coil which produces an

electromagnetic (EM) field. In this field, a secondary coil  is placed. The EM field induces a current into the

secondarycoil,providingpowertowhateveritisconnectedto.

However,unlikeaconventional

powertransformerthatoperatesatlinefrequenciesandrequiresanironcorefor

efficiency,wirelesspowersystemsaredesignedtooperateinthe100kHzrange,andthuscanperformefficiently

withanair core.Assuch,theprimary andsecondarywindings,ifclosely spaced,can beinseparatedevices,the



primary being part of a transmitter and the secondary within a receiver. This implementation can also be

described as a radio broadcast process, and as such,these transformer coils can also be seen as  antennas with

equalvalidity,andthetwotermswillbeusedinterchangeablyinthistext.

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Wireless

 power systems differ in another major aspect from conventional transformers, in that they are

intelligently managed. A transmitter will only provide power when a receiver is present, and only produce the

amount of power requested by the receiver. In addition, the system is capable of recognizing when the

electromagneticfield

hasbeeninterruptedbyanunintendedelement,a'foreignobject',andwill shutdownthe

transfer to prevent any significant amount of power being absorbed by anything but a proper receiver. The

intelligentmanagementof thewirelesspowertransmissionprocess isachievedthoughthe programmingof the

TS80003, which first searches

 for a receiver. Once found, the receiver informs the transmitter of its power

requirements,andtransmissionbegins.Thesystemthenverifiestherightamountofpowerbeingsent,andthat

no power is being lost to foreign objects. The receiver will continually provide ongoing requests for power to

maintain the

transaction. If the requests cease, the transaction terminates. Via this  protocol, even complex

chargingpatternscanbesupported,asthetransmittercanprovidevaryingamountsofpoweratdifferenttimes,

asrequestedbythereceiver.Ifthereceiverrequiresnofurtherpower,suchaswhenabatteryisfullycharged,it

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canrequestnofurtherpowerbeingsent,andthetransmitterwillreduceitsoutputaccordingly.

Wireless power systems have been broken into three power categories. “Wearable” devices, such as headsets,

wrist‐banddevices,medicalsensorsetc‐operateinthelowpowerrange,upto3watts.Mediumpowerdevices,in

the 5‐ to 15‐watt range, include handheld devices, such as cell phones, tablets, and medical electronics. High

power systems support devices such as power tools, radio controlled (“RC”) devices such as drones, and other

equipmentsrequiring15to100wattsofpower.

Receiver

Transmitter

Control

Electromagnetic

Fl ux

Cont r ol l er FET Array

Power

Suppl y

Supply

Regulation

Rectifier

End

Eq u i p ment

Po we r

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ProductDescription

TheTSDMTX‐19V3‐EVMEvaluationModuleisaready‐to‐usedemonstrationplatformallowingtestingofupto15

wattsofwirelesspowertransmissioncompliantwiththedominantindustryWPC/Qistandard.

The transmitter may be coupled with any Qi receiver module to form a complete wireless power transmission

system.Forthe

systemdesigner,alikelychoicemightbethecomplementarySemtechTSDMRX‐19V/20W‐EVM,

whichcanallowa varietyofexperimentstoeasilybeperformedinordertolearnmoreaboutthebehaviorofthe

system.

ThereareanumberofotherSemtechReceiverEVMsthatsupportdifferentpowerlevelsand

outputvoltages,any

ofwhichcanbe usedasthey are compatible with Qi standardand therefore are compatiblewiththe TSDMTX‐

19V3‐EVMtransmitter.

Inaddition,theevaluatorcanalsouseanyexistingQicompliantproduct,thoughthelimitedaccessthesedevices

offermaymaketherangeofexperimentsthat

canbeperformedmorelimited.

Those who wish to develop their own board, or integrate this functionality into an existing system can use the

EVMasastartingpointfortheirdesign,asitdemonstratesaworkingmodelfromwhichtoproceed.Towardthis

end,alldocumentationfortheEVM

isprovidedtomaketheprocessasefficientaspossible.

The key technology in the EVM is the Semtech TS80003 integrated circuit, which controls the system and

implementstheQiprotocol.Developerscanvarythesupportingcomponentrytomeettheirgoalsasdesired.

Inthisuserguide,anintroductionwillbe

providedtotheevaluatorabouthowtousetheEVMforwirelesspower

transmissionaswellashowtheTSDMRX‐19V/20W‐EVMcanbeusedinconjunctionwithit.

Oncethesystemissetupandworking,aselectionoftestsandactivitieswillbedescribedthattheevaluatorcan

choosetoperform.

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LEDBehavior

TheredandgreenLEDsontheEVMlettheuserknowwhatthetransmitterisdoingasitoperates.Asseeninthe

diagrambelow,whenpoweris applied,thetransmitterinitializesasindicatedbythegreenLEDlightingforabout

ahalfsecond.Next,asthetransmitter

searchesforanearbyreceiver,noLEDislit,keepingpowertoaminimum

level in this standby state. When a receiver is located, the transmitter receives instructions on the upcoming

transactiontoperform.PoweristhentransmittedandthegreenLEDflasheseachsecondindicatinganongoing

charging event.

During charging, if a foreign object is detected, charging is aborted and the red LED will flash

eachsecondindicatingthefaultdetected,andwillcontinuetodosountilthereceiverisremovedfromthetarget

zone.Similarly,anyotherdetectederrorwillalsoabortthechargingprocess,indicatedby

asteadyredLEDthat

remainslituntilthereceiveristakenaway.Errorconditionsincludecommunicationerrorsbetweenreceiverand

transmitter, and detection of excess voltage, current, power, or temperature on the receiver or transmitter.

Absent an error, charging continues until the receiver indicates no further power is required,

usually when an

attachedbatteryisfullyrecharged.Atthispoint,thetransmitterentersthechargecompletestate,asindicatedby

the green LED being lit steadily, which it continues to do until the receiver is removed from the transmitter.

Wheneverthereceiverisremovedfromthetargetarea,thetransmitter

returnstothestandbystate,searchingfor

anothertransactiontobegin.



Apply Power

Startup Sequence

St andby (ping…)

Charging

Charg e Comp le t e

if FOD

if Error

Receiver Removed

Blinking

Solid

Bl i nk i ng

Solid

1/2 sec

Red

LED

Green

LED

-off -

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StandardUse



TheTSDMTX‐19V3‐EVMis easy toset upand use. Usethe powersupplymoduleand linecordthatcomeswith

theEVMkittoapplypowertotheEVMvia“J2”,the19Vpowerinputjack.Theacceptableinputvoltagerangeis

from16Vto21V.Onceinput

powerisprovided,thegreenLEDshouldlightforaboutahalf‐secondandthenturn

off.

At this point, the EVM is ready to transmit power. A few times each second, the transmitter emits a ‘ping’ of

energyinsearchofacompliantreceiverinrange.

Whenreceiveris

inrange(usually 4mm~6mm),the receiveris poweredsufficiently duringtheping‐phaseand is

able to announce  its presence to the transmitter, and a transaction begins. The transmitter provides a small

amount of power to the newly discovered receiver, so receiver can tell the transmitter what its power

requirementsare.



At the completion of the handshake, the transmitter begins providing the requested power, indicated by a 

blinkinggreenLED.Duringpowertransfer,thereceivercontinuouslycommunicateswiththetransmitter,actively

directingtheprocess.Inthisway,itisassuredthatpowerisonlysentbyhowmuchitisrequired

byanavailable

and desirous receiver – and in the way that is compatible to the requirements of the receiver. If required, a

receiver can actively increase or decrease its power request, and the transmitter will act accordingly. As such,

equipment with complex charging requirements can be precisely supported and only

 the desired amount of

powerisprovided.

Oncechargingiscompleted,theLEDstopsblinkinganddisplaysasteadygreen‘completed’state.Ifatanytime

anerrorisdetected,theredLEDislitandtransmissionishalted.Torestart,thereceivermustberemovedfrom

therangeof

thetransmitterandputbacktothetargetzonetostartanewtransaction.



ProductizedReceiverTest

IfyouhaveaproductthatisQicompliant,simplyplaceitonthecirculartargetoftheblackplasticantennacover.

Thetransmittershoulddemonstratetheaboveactions,andthedevicereceiving

powershouldindicateitistaking

a charge in whatever manner its users guide states. You can also perform foreign object detection (FOD) by

followingthestepsinthe“FODTesting”sectionbelow.



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EVMReceiverTests

Additional testing can be performed with the use of an EVM receiver module. There are a number of Semtech

ReceiverEVMsthat supportdifferentpowerlevelsandoutputvoltages,anyof whichcan  beused,asallsupport

the Qi standard and therefore are compatible with the TSDMTX

‐19V3‐EVM transmitter. In this User Guide,the

TSDMRX‐19V/20W‐EVM has been selected as the receiver to experiment with. Other Semtech receiver EVMs

maybeusedinsteadina similarmanner;refertotheuserguidefortheselectedreceiverfordetailsspecifictothe

selecteddevice.Also,you

canusephoneswhichincludesWPCwirelesschargingfunctions,likeSamungphoneS6

oraboveandIphone8orabove,totestTSDMTX‐19V3‐EVM.

InordertousetheTSDMRX‐19V/20W‐EVMasatargetreceiver,simplyplacethereceiveroverthetargetcircleon

thetransmitterEVMmodule.You

shouldseetheLEDsoneachEVMturngreen,indicatingatransactionhasbeen

established.TheEVM’spurposeistoreceivepower;nextyoucandecidewhattodeliverthatpowerto.

Theuserhasanumberofpossibleoptionstochoosefrom.Theoptimalloadtoselectwouldbe

aProgrammable

DC Electronic Load. A ‘load box’ can easily be set to draw a selected current or power at the turn of a knob,

making them very flexible and easy to use in observing power supply operation in general. If a load box is  not

available,apowerresistordecade

boxisnearlyasconvenient,as itcaneasilybesettoanydesiredresistanceto

simulatearangeofloadconditions.Ineithercase,pleasemakesurethetestloadisratedforatleasttheamount

ofpowerbeingtested.Ifneedbe,aselectionofpowerresistors

couldbeusedastestloads,thoughwithoutthe

easeofmodificationoftheprioroptions.Finally,anydevicethatusesa19voltinputupto15wattsofpowercan

beusedasadesiredtestload.

Whateverloadisselected,wiresmustberunfromtheVOUT+and

GNDpinsofthereceiverEVMtotheselected

testload,aspertheillustrationbelow.Oncetheloadisadded,thereceiverEVMcanbeusedtoperformavariety

oftests.Alternately,powercanbedrawnfromtheVBUSandGNDlinesoftheUSBportifdesired.



ConnectaDCvoltmeteracrosstheVOUT+andGNDpinstomonitorthevoltagebeingoutputtotheload,anda

DCammeterinserieswiththeVOUT+ line.Setrating ofthosemeterstoallowforupto19voltsand1.1ampsto

beobserved.

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No load being connected is also fine, place the receiver on the center of the transmitter target circle. Once

transmissionbegins,youshouldobserveapproximately19voltsand0amperesonthemeters.

Apply a variety of loads to observe performance at 5, 10, and 15 watt levels. Voltage should remain

 nearly

constant, and current should follow the P=V*I relationship. Experiment with the maximum power that can be

drawn before the receiver detects an overload and cuts off power. You should be able to observe on a minor

overload, the receiver will attempt to restore power by retesting the load intermittently.

In the case of amajor

overload, the transmitter may register an error, as indicated by a red LED on the transmitter, which will halt

furtheractivityuntilthereceiverisremovedfromthetargetareaforseveralsecondsbeforebeingplacedbackto

startanewtransaction.



ObserveCoil

Signals

ThefollowinginformationisprovidedforreviewinghowtheEVMworksindetail,aswhatcanbeobservedbelow

is entirely managed by the Semtech TS80003 Wireless Controller. It allows the observer an opportunity to see

howthereceiverandtransmitteractivelymanagethewirelesspowerprocess.

Ifyouwish

to observetheintrinsicwirelessprocess,placean oscilloscopeprobeononeend ofthe antenna/coil,

withtheprobegroundconnectedtotheboardground(oneofthefastenerscrewswillsuffice).Besurethescope

canhandlesignalsupto250volts.WhiletheEVMpowersupplyis only

19volts,theantennaispartofa resonant

circuitwhereconsiderablyhighervoltagesisdeveloped.

To observe the searchping, apply power to the transmitter and remove the receiverfrom the target zone. The

scope should display a ‘chirp’ of 0.5 to 1mSec in duration with an initial peak of

 15 to 20 volts. The frequency

withintheenvelopeofthechirpisinthe100‐205kHzrange,whichisthenormalrangeofQisystems.

Next, place the receiver on the transmitter target. With the scope set to 0.5 to 1 uSec and 10 to 20 volts per

division,youshouldobserveasignalthatisacompositeofthesinusoidalpowersignalwithadigital‘notch’inthe

sinewavewhichis produced bythe communication between the receiver andtransmitter. Note as you vary the

loadandthelocation of the receiver on the target that the amplitude

 and frequency of the coil signalchanges.

The greaterthe load, themore signal is sent to transfer the power required by the load.Similarly, the less well

coupled the receiver antenna is to the transmitter coil, the more power must be sent to compensate for  the

inefficientmisalignment.You

maynotevoltagesnear140voltspeak‐to‐peakinthemostdemandingconditions.

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MeasureEfficiency

Bymeasuringthepowerfromthereceiver’sVOUT+andGNDpinsincomparisontothepowerenteringthe

transmitterEVM,youcancalculatetheefficiencyofthepowertransferthroughthesystem.FortheEVMsused

here,thediagrambelowdemonstratesthatefficiencyisafunctionofoutputcurrent,

andrunsabout83%at

nominalpowerlevel(19V/1.0A),assuringgoodefficiencyandminimalheatdissipationconcerns.

RxisSemtechTSDMRX‐19V/20W‐EVMwhichcansupportupto20Wloadundernormalcondition.





10%

20%

30%

40%

50%

60%

70%

80%

90%

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1

Efficency VS current

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ThermalImagesUsingTSDMRX‐19V20W‐EVMunder19V20Wcondition

Operationambienttemperature:26.5°C

 

Rx:60.6°C  Txboard:54.1°C

ThermalImagesUsingTSDMRX‐5V10W‐EVMunder5V10Wcondition



 

Rxboard:46°CTxboard:43°C



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FirmwareManagement

TheEVMisshippedwiththelatestreleasedversionofthefirmwareatthetimeitwasmanufactured.However,as

the standard evolves, or enhancements are made to the board performance, the firmware updates will be

available at https://www.semtech.com/power‐management/wireless‐charging‐ics/wiireless‐charging‐evm‐

firmware/index.html.

EquipmentsforFWupdate:

Device Qty.

TSDMTX‐19V3‐EVM 1

SemtechUSBTOUARTadapter 1

SemtechWirelessPowerGUIsoftware 1

GUIforTS80003allowsyouinstallthelatestfirmwaretoyourboard,andalsotointerrogatetheboardastowhich

versionofthefirmwareiscurrentlyinstalled.HereisthelinkintheSemtechwebsitetodownloadTS8000XGUI

file,Docs&Resourcesitem:

https://www.semtech.com/products/wireless‐charging/linkcharge‐ics/TS80003

ThefollowingsequenceisforFWprogram:

1. Run WirelessPowerGUI_setup.exe file toany desired location on yourcomputer, then you canfind the

SemtechWilrelessPowerGUI.



2. Makesurethe19Vinputisnotconnected.



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

3. ConnecttheUSB‐to‐UARTadapterboardtoEVMboard,andconnecttheadapterboardtoPC.



Figure3 ThewireconnectionofSemtechadapterandTS8 0003‐basedEVM



4. RunWilrelessPowerGUItostarttheuserinterface,click“Device”,choose“TS80003”.



Figure4 DeviceselectionintheGUI



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

5. Checkifthestatuschangesto“Connected”.



Figure5 StatuscheckintheGUI



6. Ifthestatusisconnected,click“Firmware”,andthenclickthebrowsebutton.



Figure6 FirmwareuploadwindowintheGUI



7. Choosethebinaryfile,andclick“Open”.



Figure7 FirmwareselectionwindowintheGUI.

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

8. Click “Program”, wait until the new window shows “Firmware is programmed successfully”. (The

programmingprocesstakesalmost20s.)



9. ClosetheGUIsoftware,andthendisconnecttheUSB‐to‐UARTadapterboardwithEVMboard.



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FODTest

In a production device, FOD testing is an important feature, in that the transmission process is constantly

inspectedfortheintroductionofextraneousmaterialsinthetargetareathatcouldabsorbthetransmittedenergy

andbecomehot.WhenForeignObjectsareDetected(“FOD”),theTS80003shutsdownpowertransmissionasa



safetyprecaution,andindicatesthedetectedproblembyblinkingtheredstatusLED.

ThisprocessisbypassedinthereceiverEVM,however,inordertoallowengineerstotestdifferentantennasand

makeother hardwaremodificationswithouttriggeringtheFODprotocols andcomplicating the testing process.

Whensuchhardwarechanges

aremade,theparametersofthefeedbackmeasurementschange,whichtheFOD

protocolwouldperceiveasaforeignobjectinthefield,andcausethesystemtoshutdown.

InordertotesttheFODprotocol,theexperimentercanuseanyQiproductscertifiedtoWPC1.2.2orhigherasa



receiver.Alistofsuchproductscanbefoundat:

http://www.wirelesspowerconsortium.com/products/?brand_name=&product_name=&type_number=&product_

type=2&compliant_automotive=&sort=&direction=asc

Experimentscanberun on foreignobjectson receiverswith andwithout FODmanagementenabled toobserve

thedifferences.WithFODdisabled,themetalobjectinthefieldwillabsorbsomeofthetransmittedenergyand

becomewarm.UsingaFOD‐enabledproductiondevice,powertransmissionwillbeabortedwhenany

significant

interferenceinpowertransferhasbeendetected.

OnceaFODaborttakesplace,thetransactionisterminated,asindicatedbyablinkingredLED.Torestartpower

transmission,thereceivermustberemovedfrom thetargetareaandanewtransactionmustbeinitiated. Ifthe

FODisstill

present,thetransactionwillfailagain,andcontinuetodosountiltheFODisremovedfromthetarget

area.



UserGuide Rev2.1 www.semtech.com 15of27

TSDMTX‐19V3‐EVM Aug-18 Semtech

 

Documentation

ThefollowingsectionsdocumentthehardwaredesignoftheTSDMTX‐19V3‐EVM.Thisinformationcanbe used

to better understand the functionality of the design, as well as assist in creating your own hardware solution

basedonthisdesign.

A. BlockDiagram

TheTSDMTX‐19V3‐EVMmaybedividedintoanumberofsub‐blocksasshowninthediagrambelow:



19VoltSupply‐theexternal‘brick’thatconvertsACpowerto19volts(16Vto21Visacceptable)

5VoltBuck–basedontheTS30011,converts19vdcto5

vdc

Controller–basedontheTS80003WirelessPowerController.IncludesI/O:USB,I2C,TempSensor,LEDdisplay

FETDriver–basedontheTS61002Full‐bridgeFETDriver,powerstheFETsbasedoninputsfromcontroller,

supply3VccforController

BridgeFETs–gatesdrivepowerfromthe19vsupply

todrivetheresonanttankcircuit(antenna)

MatchingNetwork–arrayofcapacitorstocreatetheresonanttankalongwiththeantenna

Antenna:Transmit–actsastheprimaryofanair‐coretransformerinconjunctionwiththereceiverantenna.

Filters–adapttheantennaanddrivevaluesforuse

asfeedbackinputtothecontroller,TS94033asthecurrent

amplifier.



UserGuide Rev2.1 www.semtech.com 16of27

TSDMTX‐19V3‐EVM Aug-18 Semtech

 

B. Schematic

Belowaretheschematics fortheTSDMTX‐19V3‐EVM.Annotationhasbeen addedto indicatewhichpart ofthe

blockdiagrameachcomponentisamemberof.



150

LEDG

1 2

3 4

150

LEDR

VCC

SDA/ RX

SCL/TX

3I2 C/ UART

GND

68000-104HLF

PGND PGND

TP3

AC_PHASE

TP5

TP6

DC_VOL TAGE

DC_CURRE NT

TP4

AC_V

TP2

AC_AMPL

TP1

AC_PEAK

AC_PE AK

100nF

10K

TEMP

AVCC

VCC3V

100nF

GND

AGND

600

DC_CURRE NT

PWM1_H

PWM1_L

PWM2_H

PWM2_L

DC_VOL T AGE

PWM1_H

PWM1_L

PWM2_H

PWM2_L

100nF

4.7nF

1.0

LEDG

LEDR

DRV_E N

TEMP

DRV_E N

VCC3V

SCL_TXD

SDA_RXD

AC_PE AK

AC_AMPL

DC_VOL T AGE

DC_CURRE NT

AC_V

AGND

AC_V

AC_AMPL

AC_PHASE

AVCC

AC_GAI N

AC_PHASE

SYNC1

47K

100K

AC_GAI N

10K

SYNC2

4.7uF

6.3V

4.7uF

6.3V

PGND

TOUCH1/ BST _VSE T

TOUCH2

BUCK_H

TOUCH3

PWM2_L

BUCK_L

COIL_PHASE

SYNC1

MAT CH_PHASE

AC_PHASE

AC_AMPL

AC_V

AC_PE AK

COIL_EN3

DC_I

DC_V

SYNC2

DRV_E N

COIL_EN1

COIL_EN2

AC_GAI N2

VDD

PWM2_H

BT_RX/SWDIO

PWM1_L

PWM1_H

AC_GAI N1

VSS

BT_TX/SWDCLK

I2C_SCL/RX

AVSS

AVDD

I2C _SDA/ T X

LEDG

VDD

LEDR

LEDB

TEMP

BATT_V

BST_L

PAD

TS80003

J1: Pin 2 is connected to TX of PC; Pin 3 is connected to RX of PC

AC_VTPC1

TPC2

UserGuide Rev2.1 www.semtech.com 17of27

TSDMTX‐19V3‐EVM Aug-18 Semtech

 



TP10

GND

TP9

PGND

VCCIN

TIE1

PGNDGND

TP8

VCC 5V

TP7

VCC IN

VSW

VCC

GND

BST

VCC

VSW

PGND

VSW

PAD

TS30011-M000QFNR

47nF

C11

VCC5V

4.7uH

VCCIN

PGND

FET Driver supply

10K

R10

PGND

47K

TIE2

GND AGND

100nF

50V

C10

10uF

25V

C12

22uF

25V

22uF

6.3V

C13

22uF

6.3V

C14

VDIODE S

COIL

AC_PE AK

100K

R29

1.5K

R30

100nF

C48

AGND AGND

AC_PE AK

1nF

150V

C49

7.5K

R28

AGND

75K

R31

10K

R32

4.7nF

C50

DC_VOL TAGE

AGND AGND

DC_VOL TAGE

1uF

C52

R33

100nF

C53

DC_CURR ENT

DC_ I+

DC_ I-

VSS

VDD

INP

INM

OUT

VOS_ RE F

VDDR

TS94033

DRV_ E N

10nF

10V

C51

AGND

10nF

10V

C54

AGND

200K

R26

4.7nF

150V

C46

7.5K

R25

7.5K

R27

33pF

C47

AVCC

BAT54SW-7-F

VCC3 V

VSE NSE

AGND AGND AGND

VSE NSE

AVCC

VDIODE S

Place close to the TS80003.

Place close to the TS61002.

Maintain clearances to other circuits.

High Voltage.

R35

VCCI N

UserGuide Rev2.1 www.semtech.com 18of27

TSDMTX‐19V3‐EVM Aug-18 Semtech

 



R12

R15

100nF

50V

C20

PGND

SW1

R19

R23

100nF

50V

C28

PGND

SW2

R13

R21

TP12

TP13

VBRIDGE

SW1

SW2

2.2nF

50V

C25

PGND

2.2nF

50V

C23

2.2nF

50V

C38

PGND

2.2nF

50V

C31

47nF

C37

47nF

C24

PGND

VS1

HO1

LO1

VCCG

PGND

LO2

HO2

VS2

VB2

LS1ON

HS1 ON

LS2ON

AGND

VOUT A

LDO_EN

VL DO

HS2 ON

SYNC1

VIN

VOUT B

GAI N

SYNC2

DRV_E N

VB1

PAD

TS61002

4.7uF

6.3V

C42

10uF

16V

C40

100nF

10V

C41

PGND

DRV_E N

PGND

PWM1_H

PWM1_L

PWM2_H

PWM2_L

2.0

R22

PGND

2.7nF

50V

C39

2.0

R14

PGND

2.7nF

50V

C26

SYNC1

AC_GAI N

AC_V

AC_AMPL

AC_PHASE

AGND AGND

47pF

C36

100K

R18

AC_AMPL

AC_PHASE

100K

R20

220pF

C45

10nF

C44

100K

R24

1nF

150V

C43

AC_AMPL

22uF

25V

C21

22uF

25V

C22

22uF

25V

C29

22uF

25V

C30

VSE NSE

VSENSE

VCC3V

VCC5V

COIL

C34

47nF

200V

C32

47nF

200V

C33

C35

TEMP

2 COIL

24uH

2 Therm

Coil Thermistor

PGND

VDI ODES

High Voltage.

SYNC2

100K

R17

47pF

C27

7.5K

R16

Place pin 19 close to the TS80003.

Supported coils:

A10, MP-A1 (1 9 V)

Other coils are supported.

Each coil needs special configu rations in FW.

The resonant capacitors(C32C35) need to be tuned to match the coil.

100nF

50V

C19

0.020

R11

VBRIDGE

PGND

DC_I +

DC_I -

22V

100nF

50V

C18

VCCIN

TIE4TIE3

22uF

25V

C15

22uF

25V

C16

22uF

25V

C17

PGND

TP11

VBRIDGE

Use a cu rrent sense resistor with a low temperature coefficient.

Connect the current-sense amplifier using Kelvin connections

directly to the resistor pads.

Do not allow high current to flow through the Kelvin connections.

2 , 3, 4

Q1A

BSC0993ND

5 , 6, 7

Q1B

BSC0993ND

2 , 3, 4

Q2A

BSC0993ND

5 , 6, 7

Q2B

BSC0993ND

UserGuide Rev2.1 www.semtech.com 19of27

TSDMTX‐19V3‐EVM Aug-18 Semtech

 



C. BillOfMaterials“BOM”

Below is a list of the parts used in the TSDMTX‐19V3‐EVM. An excel spreadsheet file with this information is

availableontheSemtechwebsiteasanadditionalconvenience.

 



Item Designator Qt. ManufacturerCode Footprint Description Manufacturer

1 C1, C5, C42 3 0603 0603 4.7uF 6.3V

2 C10, C18, C19 3 0402 0402 100nF 50V

3 C11, C24, C37 3 0402 0402 47nF 25V

4 C12 1 0805 0805 10uF 25V

5 C13, C14 2 JMK316B7226ML-T 1206 1206 22uF 6.3V X7R Tayio Yuden

C2, C3, C4, C6,

C8, C41, C48,

C53

8 0402 0402 100nF 10V

7 C20, C28 2 0603 0603 100nF 50V

8 C26, C39 2 0805 0805 2.7nF 50V Yageo

9 C27 1 0402 0402 47pF 10V

10 C32, C33 2 C1210C473J2GACAUTO 1210 1210 47nF 200V C0G Kemet

11 C40 1 0805 0805 10uF 16V

12 C43, C49 2 1206 1206 1nF 150V

13 C44, C51, C54 3 0402 0402 10nF 10V

14 C45 1 0402 0402 220pF 10V

15 C46 1 1206 1206 4.7nF 150V

16 C47 1 0402 0402 33pF 10V

17 C52 1 0402 0402 1uF 10V

18 C7, C50 2 0402 0402 4.7nF 10V

C9, C15, C16,

C17, C21, C22,

C29, C30

8 CL32B226KAJNFNE 1210 1210 22uF 25V X7R Samsung

20 D1 1 APHB1608ZGSURKC APHB1608 LED Dual Color Kingbright

21 D3 1 BAT54SW-7-F SOT323-3N Schottky Diode Zetex

22 D4 1 BAS101S,215 SOT23-3N Diode NXP

23 J2 1 PJ-014DH-SMT CON_PWR Low Voltage Power Supply Connector CUI

J4 1 760308110 Coil 24uH±10% 6A, Q=180, Typ. RDC=0.07ohm Wurth Electronics

25 L1 1 BLM18AG601SN1D 0603 0603 600R Beads Murata

26 L2 1 MLP2012S4R7M 0805 0805 4.7uH QFN8-INF TDK

27 Q1, Q2 2 BSC0993ND QFN8-INF DUAL MOSFET

R0, R12, R15,

R19, R23

5 0402 0402 0R

29 R1, R13, R21 3 0402 0402 1R

30 R11 1 WSL0603R0200FEA 0805 0805 0R02 1% 75PPM/C Vishay

31 R14, R22 2 0805 0805 2R

32 R16, R25, R27 3 0402 0402 7K5

33 R2, R9 2 0402 0402 47K

34 R26 1 0603 0603 200K

35 R28 1 0603 0603 7K5

36 R29 1 0805 0805 100K

R3, R17, R20,

R24

4 0402 0402 100K

38 R30 1 0402 0402 1K5

39 R31 1 0402 0402 75K

40 R33 1 0402 0402 1K

41 R35 1 0402 0402 10R

42 R6, R10, R32 3 0402 0402 10K

43 R7, R8 2 0402 0402 150R

44 U1 1 TS80003 VQFN TS80003 PG-VQFN-40-17 Semtech

45 U2 1 TS30011-M000QFNR QFN Current-Mode Synchronous Buck DC/DC Co

Semtech

46 U3 1 TS61002 QFN Full-Bridge FET driver Semtech

47 U4 1 TS94033SKTRC SC70-8N Current Sense Amplifier Semtech

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Semtech TSDMTX-19V3-EVM User guide

Brand: Semtech

Model: TSDMTX-19V3-EVM

Type: User guide

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Semtech TSDMTX-19V3-EVM User guide

Semtech TSDMTX-19V3-EVM User guide

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