Rev. 1.00 1 April 20, 2016 Rev. 1.00 PB April 20, 2016

HT45B0003/HT45B0005Dual Line Power Line Data Transceiver

Features• CompleteDataTransmission on Power Linefunctions

• HighMaximumInputVoltage:42V• IntegratedLowDropoutVoltageRegulator• IntegratedVoltageDetector forPowerSupplyMonitoring

• IntegratedComparator• OpendrainNMOSdriverforflexibleinterfacing• PowerandResetProtectionFeatures• 8-pinSOPpackagetype• Minimalexternalcomponentrequirements

General Description In systemswhere amaster controller controls anumberofindividualinterconnectedsubsystemssuchasfoundinsmokedetectorsystems,watermeteringsystems, solar energy systemetc., thecostof the

lengthyinterconnectingcablingcanbeamajorfactor.Bysendingdataalong thepowersupply lines, theinterconnectingcablescanbe reduced toa simpletwo line type, thusgreatly reducingbothcableandinstallationcosts.

Withtheadditionofafewexternalcomponents,thispower linedata transceiverdevicescontainall theinternalcomponentsrequiredtoprovideuserswithasystemforpowerlinedatatransmissionandreception.Dataismodulatedontothepowerlinebythesimplereductionof thepower linevoltage for a specificperiodoftime.Powersupplyvoltagechangescanbeinitiatedby themastercontroller fordatareceptionor initiated by theHT45B000x devices for datatransmission.Aninternalvoltageregulatorwithinthedevicesensuresthataconstantvoltagepowersupplyisprovided to the interconnected subsystemunitswhileaninternalvoltagedetectormonitorsthepowerlinevoltagelevel.Aninternalcomparator isusedtotranslatethedifferentialsignalintoalogicsignalfortheMCU.

Selection GuidePart No. LDO Voltage Detect Voltage Package

HT45B0003 3.3V 5.25V 8SOPHT45B0005 5.0V 5.25V 8SOP

Rev. 1.00 2 April 20, 2016

HT45B0003/HT45B0005

Block Diagram

LDO3.3V/5.0V

LVD5.25V

CEB

VDD

VDD

VDD

VCC

CN

TRX

IS

VSS

TX

RX

RPU

CMP

OPA

1.5V

+

–

+

–

EN1

Current Modulator

TRX offline detector

EN1

VBG=1.5V

EN1B

EN1B

R

EN1B

Zener

5.6V

EN1B

10MΩ

EN

Rev. 1.00 3 April 20, 2016

HT45B0003/HT45B0005

Pin Assignment

1234

8765

VSSTRX

CNVCC

ISTXRXVDD

HT45B0003/HT45B00058 SOP-A

Pin DescriptionPin Name I/O Description

VCC — Input voltage CN I Comparator Negative InputTRX B Transceiver signal detect/modulateVSS — Ground pin – VSSIS O Source terminal of constant current NMOS driverTX O Input pin for constant current modulateRX O Comparator output, transmitter signal detect output

VDD — LDO output voltage

Absolute Maximum RatingsSupplyVoltage....................................... VSS-0.3~50VOperatingTemperature........................... -40°C~85°CStorageTemperature............................. -50°C~125°C

IOLTotal............................................................. 80mAIOHTotal............................................................ -80mATotalPowerDissipation................................. 500mW

Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder“AbsoluteMaximumRatings”maycausesubstantialdamagetothedevice.Functionaloperationofthisdeviceatotherconditionsbeyondthoselistedin thespecificationisnot impliedandprolongedexposuretoextremeconditionsmayaffectdevicereliability.

D.C. CharacteristicsTa=25°C

Symbol ParameterTest Conditions

Min. Typ. Max. UnitVDD Conditions

VCC Operating Voltage — — 7 — 42 VICC Operating Current — VCC=42V, VDD No Load, — 20 40 μA

IOFF Offline Current — Vcc=42V, VDD No Load,TRX=0V — 10 20 μA

VOFF TRX Offline Voltage — — — — 0.5 VVON TRX Online Voltage — — 4 — — VVT Threshold Voltage — — — VMARK-5.6 — V

IMC Modulate Current— RS=100Ω — 15 — mA— RS=47Ω — 32 — mA

VIL Input low voltage for TX pin5V — 0 — 1.5 V

3.3V — 0 — 0.2VDD V

VIH Input high voltage for TX pin5V — 3.5 — 5 V

3.3V — 0.8VDD — VDD V

Rev. 1.00 4 April 20, 2016

HT45B0003/HT45B0005

Symbol ParameterTest Conditions

Min. Typ. Max. UnitVDD Conditions

IOL Sink current for RX pin3.3V VOL=0.1VDD 4 8 — mA5V VOL=0.1VDD 10 20 — mA

IOH Source current for RX pin3.3V VOH=0.9VDD -2 -4 — mA5V VOH=0.9VDD -5 -10 — mA

RPH Pull-high Resistance for TX — — -30% 50 30% kΩ

LDO CharacteristicsTa=25°C

Symbol ParameterTest Conditions

Min. Typ. Max. UnitVDD Conditions

VOUT Output Voltage3.3V

VCC=7V, ILOAD=10mA3.2 3.3 3.4 V

5V 4.85 5 5.15 V

IOUT Output Current —VCC=10V, ΔVOUT=-3% 60 — — mAVCC=7V, ΔVOUT=-3% 30 — — mA

ΔVLINE Line Regulation — 7V ≤ VIN ≤ 42V, ILOAD=1mA — — 0.2 %/V

TC Temperature Coefficient3.3V Ta=-40°C ~ 85°C,

VCC=7V, ILOAD=10mA — ±0.5 ±1 mV/°C

5V Ta=-40°C ~ 85°C, VCC=7V, ILOAD=10mA — ±0.75 ±1.5 mV/°C

ΔVOUT_RIPPLE Output Voltage Ripple — VCC=7V, ILOAD=10mA — — 40 mV

tSTART LDO Startup Time3.3V VCC=7V, ILOAD=1mA,

VOUT=3.3V ± 3% — — 10 ms

5V VCC=7V, ILOAD=1mA, VOUT=5V ± 3% — — 10 ms

IOL Sink current for VDD — VCC=5V, VOL=0.5V 0.8 — — mA

LVD CharacteristicsTa=25°C

Symbol ParameterTest Conditions

Min. Typ. Max. UnitVDD Conditions

VLVD Low Voltage Detection Voltage — — 5.0 5.25 5.5 VTC Temperature Coefficient (ΔVLVD/ΔTa) — Ta=-40°C ~ 85°C — ±0.9 — mV/°C

VDETPower-up Detection Voltage (VCC Positive-going Threshold Voltage) — — 6.2 6.5 6.8 V

Comparator CharacteristicsTa=25°C

Symbol ParameterTest Conditions

Min. Typ. Max. UnitVDD Conditions

AOL Open loop gain — — 60 80 — dBVHYS Hysteresis — — — 0.15 — VtRP Response time — — — — 5 μs

Rev. 1.00 5 April 20, 2016

HT45B0003/HT45B0005

Function DescriptionThesedevicesprovideawaytotransmitandreceivedataonthecommonpowerlinesofaninterconnectedarrayofmicrocontrollerbasedsubsystems.Byhavingone of these devices inside each subsystem, thesharedpoweranddatacablingcanbereduced toasimpletwolinetype,offeringmajorinstallationcostreductions.

Shared Power LineAllmicrocontrollerbasedsubsystemsareconnectedtogetherviathesametwolinepowerconnection.Thegroundlineishardwiredtoeachsubsystemwhilethepositivepower line isconnected to theVCCpinoneachof theHT45B000xdevices.An internalLowDropoutVoltageRegulatorwithin theHT45B000xdevicesconvertsthisinputpowersupplyvoltagetoafixedvoltagelevelwhichissuppliedtothesubsystemmicrocontrollerandothercircuitcomponents.Inthiswaywhenthepower linevoltageischangedduetothe transmissionorreceptionofdata thesubsystemcircuits stillcontinue to receivea regulatedpowersupply.

Data Transmission (From Master Controller to Slave Device)Refer to the application circuit when readingthe followingdescription.Themaster controllertransmites thedatabymodulate thepositibepowerline (L+) voltage.Using thismethod should bepayattention to thenoise toleranceof thedevicesoperatingvoltageandtheTRXpinreceivingdata.Asthedevicesincludeavoltageregulatorwhichisusedasthepowersupplytothesubsystemunits, thenthesubsystempowersupplyvoltagewillnotbeaffectedaslongastheregulatorminimumdropoutvoltageismaintained.ThenavoltagemodulationsignalwillbedetectedintheTRXpintomaketheTRXpinvoltagedroplowerthanthethresholdvoltage(VT).Howevera reduction in thepower supplywill bedetectedby theCMPinternalcomparator.Theoutputof thiscomparatorisconnectedtopinRXcanbeconnectedtoamicrocontrollerinputforuseasadatasignal.

VTRX

VT

VRX

VVDD

VMARK

Power Line Data Reception

Data Reception (From Slave Device to Master Controller)Refer to the application circuitwhen reading thefollowing description.TheHT45B000X slavedevicescan transmitdata to themastercontrollerbymodulatingthecurrentonthepowersupplyline.Theslavedevicespull theTXpinvoltage toa lowlevel toenable the internalcurrentmodulator.Themodeulatorwillprovideaconstantcurrentloadbythetransistorconnected to the internalmodulatorOPAoutputNMOS terminal.Theconstantcurrent loadissuppliedby thepower line throughtheTRXpin,andcanbeadjustedbytheRSresistorconnectedontheISpin.Therefore, thecurrentmodulationsignalscanbegeneratedontheTRXpinbycontrol theTXpinvoltagelevel.Thecurrentmodulationsignalcanreturn to themaster controller through thepowersupplyline.

Constant Current Modulator CharacteristicsTa=25°C

Symbol ParameterTest Conditions

Min. Typ. Max. UnitVDD Conditions

tRP Response Time — No Load — — 5 μA

Rev. 1.00 6 April 20, 2016

HT45B0003/HT45B0005

VTX

VVDD

IIS

IMC

Offline DetectionRefer to the application circuitwhen reading thefollowingdescription.When themastercontrollerpower line isoffline, theTRXpinwill bepulledlowvia 2MΩ resistorwhichwill enable offlinedetection function. In thiscase, theCMPandOPAfunctionswillbeforecedtodisabletoreducepowerconsumption.TheofflinemechanismwillbedispelleduntilthepowerlinerestartstobepoweredontopullhightheTRXpinvoltage.

Current Modulator Thedevices canmodulate power line current byadding additional constant current sourcewhichcontrolbyTXpin.WhenTXpinconnecttolowlevelwill enable this currentmodulation function.Themodulationcurrentcanbecalculatedbythefollowingformula:

IIS=1.5V/RS

Application ConsiderationsIt isenvisagedthatthedeviceswillbeusedtogetherwithmicrocontrollerbasedsubsystemswhichwillberequiredtoprovidetwoI/Opinsfordatatransmissionand reception.TheMCUpinconnected to theTXpinmustbesetupasanoutputwhile theMCUpinconnectedtotheRXpinmustbesetupasaninput.

System Block Diagram

Rev. 1.00 7 April 20, 2016

HT45B0003/HT45B0005

Application CircuitsThefollowingapplicationcircuitshowsthedeviceusedinconjunctionwithamicrocontroller.

LDO3.3V/5.0V

LVD5.25V

CEB

VDD

VDD

VDD

VCC

CN

TRX

IS

VSS

TX

RX

MCU

104

100Ω

22µF

1kΩ

104

100Ω

1N4148

1N40041N4004

L+

L-

1N4148 1N4148

RPU

CMP

Rs1.5VIIS

OPA

1.5V

RS

+

–

+

–

EN1

Current Modulator

TRX offline detector

EN1

VBG=1.5V

EN1B

EN1B

EN1B

Zener

5.6V

EN1B

10MΩ

EN

2MΩ

VB

Rev. 1.00 8 April 20, 2016

HT45B0003/HT45B0005

Package Information

Notethatthepackageinformationprovidedhereisforconsultationpurposesonly.AsthisinformationmaybeupdatedatregularintervalsusersareremindedtoconsulttheHoltekwebsiteforthelatestversionofthePackage/CartonInformation.

Additional supplementary informationwith regard topackaging is listedbelow.Clickon therelevantsectiontobetransferredtotherelevantwebsitepage.

• FurtherPackageInformation(includeOutlineDimensions,ProductTapeandReelSpecifications)

• PackingMeterialsInformation

• Cartoninformation

Rev. 1.00 9 April 20, 2016

HT45B0003/HT45B0005

8-pin SOP (150mil) Outline Dimensions

SymbolDimensions in inch

Min. Nom. Max.A — 0.236 BSC —B — 0.154 BSC —C 0.012 — 0.020C' — 0.193 BSC —D — — 0.069E — 0.050 BSC —F 0.004 — 0.010G 0.016 — 0.050H 0.004 — 0.010α 0° — 8°

SymbolDimensions in mm

Min. Nom. Max.A — 6.00 BSC —B — 3.90 BSC —C 0.31 — 0.51C' — 4.90 BSC —D — — 1.75E — 1.27 BSC —F 0.10 — 0.25G 0.40 — 1.27H 0.10 — 0.25α 0° — 8°

Rev. 1.00 10 April 20, 2016

HT45B0003/HT45B0005

Copyright© 2016 by HOLTEK SEMICONDUCTOR INC.

The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek's products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw/en/home.