Rev. 1.00 1 November 07, 2017 Rev. 1.00 PB November 07, 2017

HT7K12011 Channel, 6.0V, Peak Current 1.3A H-Bridge Driver

Features• 1ChannelH-BridgeMotorDriver:LowMOSFETOn-resistance:0.5Ω(HS+LS)

• WideVDDInputVoltageRangeof1.8Vto6.0V• Maximum1.3AMotorPeakCurrent• FourOperationModes:Forward,Reverse,BrakeandStandby

• LowSleepCurrent<0.1μA• Upto200kHzPWMInputControlOperation• ProtectionFeatures

♦ VDDUnderVoltageLock-Out ♦ OverCurrentProtection ♦ ThermalShutdownProtection ♦ OutputShortCircuitProtection

• PackageType:6-pinSOT23-6• OperationTemperatureRange:-40oCto+85oC

Applications• Valve/Pump,ElectricLocksandConsumerToys

General DescriptionTheHT7K1201isa1-channelH-bridgedriverwithamaximummotorpeakcurrentof1.3A.Itsoutstandinglowon-resistancecharacteristic results inexcellentoutput efficiencywhich is amajor advantage inbatterypoweredsystems.Asimpletwoinputcontrolpinstructure isusedtoprovidefourcontrolmodes:Forward,Reverse,BrakeandStandby/Sleepmodes.WithaPWMinputcontrol frequencyofup to200kHz,accuratespeedcontrolcanbeimplementedforawidevarietyofapplications.AfullrangeofprotectionfunctionsareintegratedincludingOCP,OSPandOTPtopreventdevicedamageeven if themotor stallsorexperiencesa short circuit incriticaloperatingenvironments.Astheautomaticsleepmodeactivationmechanismuses the samemode control pins, anadditional extra shutdown signal is not required.Inaddition,anultra-low0.1μAsleepmodecurrentensureslongbatterylife.

Typical Application CircuitsHT7K1201

M

OUT1

OUT2

IN1

VDD

GND

IN2MCU

1.8V to 6VOUT1

OUT2

C1

VDD

CM

Rev. 1.00 2 November 07, 2017

HT7K1201

Functional Block Diagram

OUT1

PGND

OUT2

ControlLogic OTP

VDD

IN1

IN2

Charge Pump

GateDriver

GateDriver

GND

GateDriver

GateDriver

UVLO

OCP/OSP

OCP/OSP

Pin Assignment

Top View

SOT23-6

K1201

6 5 4

321

IN2GNDOUT2

IN1VDDOUT1

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HT7K1201

Pin DescriptionPin No. Pin Name Type Description

1 OUT2 O H-Bridge Output 22 GND G Ground

3 IN2 IControl Input 2Pin must not be allowed to float. Should be connected to external 100kΩ pull up or pull down resistor.

4 IN1 IControl Input 1Pin must not be allowed to float. Should be connected to external 100kΩ pull up or pull down resistor.

5 VDD P Power supply6 OUT1 O H-Bridge Output 1

Note:I:InputO:OutputP:PowerG:Ground

Absolute Maximum RatingsParameter Value Unit

VDD -0.3 to +6.6 VIN1, IN2 -0.3 to (VDD+0.3) VOperating Temperature Range -40 to +85 °CMaximum Junction Temperature +150 °CStorage Temperature Range -65 to +160 °CLead Temperature (Soldering 10 sec.) +260 °C

ESD SusceptibilityHuman Body Model ±3000 VMachine Model ±100 V

Junction-to-Ambient Thermal Resistance, θJA 220 °C/W

Recommended Operating RatingsParameter Value Unit

VDD 1.8 to 6.0 VIOUT(RMS) 0.8 (Thermal Limited) AIOUT(PEAK) 1.3 A

Notethat theAbsoluteMaximumRatingsindicate limitationsbeyondwhichdamagetothedevicemayoccur.RecommendedOperatingRatingsindicateconditionsforwhichthedeviceisintendedtobefunctional,butdonotguaranteespecifiedperformancelimits.

Rev. 1.00 4 November 07, 2017

HT7K1201

Electrical CharacteristicsVDD=VM=5VandTa=25°C,unlessotherwisespecified

Symbol Parameter Test Condition Min. Typ. Max. UnitPower Supply VDD Supply voltage — 1.8 — 6.0 VIDD Supply operation current PWM=25kHz, OUT1 and OUT2 open — 650 1000 μAIDD(STB) Supply standby current IN1=IN2=’0’, charge pump activated — 600 800 μAIDD(SLP) Supply sleep current IN1=IN2=’0’, charge pump disabled — ─ 0.1 μAH-Bridge DriverRON *HS+LS FET on-resistance VDD=VM=3V, IOUT=500mA — 0.5 — ΩVCLAMP Clamp diode voltage I=300mA (HS and LS) — 0.8 — Vtr(OUT) Output rise time RL=20Ω, 10% to 90% (Figure1) — 100 — nstf(OUT) Output fall time RL=20Ω, 10% to 90% (Figure1) — 30 — nsControl LogicVIL Input logic low voltage VDD=5V 0.8 ─ ─ VVIH Input logic high voltage VDD=5V — ─ 2 VVHYS Input logic hysteresis — — 0.1 — VtP1

IN-to-OUT Propagation delay(Figure1)

RL=20Ω, INx to OUTx (high-Z to high/low) — 40 — nstP2 RL=20Ω, INx to OUTx (high/low to high-Z) — 120 — nstP3 RL=20Ω, INx to OUTx — 40 — nstP4 RL=20Ω, INx to OUTx — 120 — ns

tSLPEN Sleep mode entry time IN1=IN2=’0’ until charge pump switches off (Figure1) — 10 — ms

fPWM Input PWM frequency Internal charge pump activates — ─ 200 kHzCharge PumptCP_ON Charge pump on time Charge pump activation time — 11 — msProtectionVUVLO+ VDD turn on level VDD rises — — 1.8 VVUVLO− VDD turn off level VDD falls 1.5 — — VIOCP Over current threshold With deglitch time, tDEG 0.9 1.3 — AtDEG Over current deglitch time (Figure2) — 1 — μstRETRY Over current retry time (Figure2) — 1 — msISCP** Short circuit protection threshold Without deglitch time (Figure3) — 1.9 — AtSHD Thermal shutdown threshold — — 150 — °CtREC Thermal recovery temperature — — 120 — °C

Note: * The "HS" means High Side while the "LS" means Low Side.** The HT7K1210 device provides full short circuit protection for the OUTx-to-ground, OUTx-to-power or OUT1-to-OUT2 path.

Rev. 1.00 5 November 07, 2017

HT7K1201

IN1

IN2

OUT1

OUT2

tCP_ON

tP4

tP2

tP3

tP1

tSLPEN

High-Z

High-Z

High-Z

High-Z

V(CP)internal

OUTx

tr(OUT) tf(OUT)

Figure1. Control Logic and Sleep Mode Timing Diagram

tDEG

IOCP

0

VDD

0

tRETRY tDEGtRETRY

IOUT

IN1

IN2

Figure2. OCP Reaction

IOUT

IN1

IN2 0

VDD

IOSP

tRETRY

Figure3. OSP Reaction

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HT7K1201

Typical Performance CharacteristicsVDD=5VandTa=+25oC,unlessotherwisespecified

IDD(STB) vs. VDD IDD(SLP) vs. VDD

VIH/VIL vs. VDD RON vs. VDD (-40, 25, 85)

IOCP vs. TEMP

Short Protection Reaction Short Protection Reaction (Zoom-in)

Rev. 1.00 7 November 07, 2017

HT7K1201

Functional Description

OverviewTheHT7K1201isa1-chH-bridgedriverthatcandriveDCbrushmotorsorsolenoids.Duetothe4internalverylowon-resistancepowerMOSFETswhichhaveparallelsparkkillerdiodesintheSOT23-6package,theHT7K1201motordriverhasahighefficiencymotordrivingcapability,reducedexternalcomponents.Thedevicealsoincludesafullrangeofprotectionfunctionsincludingover-currentandover-temperaturetopreventthepossibilityofburn-outoccurringevenifthemotorstallsoriftheoutputpinsareshortedtoeachother.

H-Bridge ControlAccordingto theIN1andIN2pinstates thedevicewillgeneratefourH-bridgeoutputstates:Standby/Sleep,Forward,ReverseandBrake.Theinput/outputoperation truth table isshown inTable1.Note thattheIN1andIN2control inputpinsarenotallowedtofloatandmustbeconnectedtoanexternal100kΩpull-uporpull-downresistor.

IN1 IN2 OUT1 OUT2 Functional ModeH-Bridge Status

M1 M2 M3 M40 0 Z Z Standby/Sleep OFF OFF OFF OFF0 1 L H Reverse OFF ON ON OFF1 0 H L Forward ON OFF OFF ON1 1 L L Brake OFF ON OFF ON

Table1. Operation Truth Table

OFF

M

VM

OUT2

M3

OFF

M4

M1

M2

OFF

OFF

OUT1

M3

M4

M1

M2

OFF

OFF

ON

ON

OUT2OUT1

VM

Standby-SLEEP Forward

OFF

ON

ON

OFF

M3

M4

M1

M2M M

VM

MOUT2OUT1 OUT2OUT1

M3

M4

M1

M2

OFF

ON

OFF

ON

Reverse Brake

VM

H-Bridge Functional Modes

Sleep ModeWhentheHT7K1201deviceremains inthestandbymodeforaperiodoftime,tSLPEN,withatypicalvalueof10ms, thedevicewillenter theSleepmode.Allfunctionalblocksareturnedofftoreducethecurrentconsumptiontoanultra-lowvalueoflessthan0.1μA(max).Whenan IN1or IN2pin is set to ‘H’, thedevicewillexitfromthesleepmode.

VDD Under Voltage Lock-outIn order to avoid anH-bridgemetastable outputconditionwhenpowered-onorwitha lowbatteryvoltage, an under voltage lockout function isintegratedwithin the device.During the power-onperiod, theH-bridgeoutputswill remaininhighimpedancestatesand thecontrol inputsare ignored

whenVDDislowerthanVUVLO+.TheH-bridgeoutputsareonlycontrolledbyinputswhenVDDishigherthanVUVLO+.Thedevicewillbe lockedagainwhenVDDfallstoavoltagelevellowerthanVUVLO-.

Over Current Protection − OCPTheHT7K1201device includesa fully integratedovercurrentprotectionfunctionwithineachof theinternalpowerMOSFETs.When themotorcurrentexceeds theovercurrentprotection threshold, IOCP,exceedingade-glitchtime,tDEG,allpowerMOSFETswillbe turnedoff immediately.After theretry timetimes out, the devicewill release the protectionactivationandallownormaloperationtoresume.

Rev. 1.00 8 November 07, 2017

HT7K1201

Output Short-Circuit Protection − OSPThe device provides full output protection forconditionssuchasanoutputpinshorttoground,tothemotorsupplyortoeachother.ThedevicedetectsthecurrentthrougheachpowerMOSFETsandcomparesitwith theoutputshortcircuitprotection threshold,IOSP,withoutade-glitchtime.Thecurrent thresholdIOSPisinternallysetto1.5timestheIOCP.WhenanOSPconditionoccurs, thedevicewill turnoffallpowerMOSFETsandkeepcheckingtheoutputstatuseveryretrytime,tRETRY,untilthefaultisremoved.

Over Temperature Protection − OTPIfthedietemperatureexceedstheinternallimitthresh-limitthresh-old,TSHD,thedevicewillturnoffallpowerMOSFETsuntilthetemperaturedecreasestoaspecificlevellessthantherecoverytemperature,TREC.

Power DissipationThemainpowerdissipationintheHT7K1201deviceisdeterminedbytheon-resistanceof internalpowerMOSFETs.Theaveragepowerdissipationcanbeestimatedusingthefollowingequation:

PAVG=RON×(IOUT(RMS))2

WherePAVG is theaveragepowerdissipationof thedevice,RON is the totalon-resistanceofHSandLSMOSFETsand IOUT(RMS) is theRMSorDCoutputcurrentthroughtheload.NotethattheRONvaluewillvarywith thedie temperature.Thehigher thedietemperatureis,thehigherwillbetheRONvalue.Whentheambient temperature increasesoras thedeviceheatsup,thepowerdissipationofthedevicewillalsoincrease.

Component/Motor Selection Guide

Motor ConsiderationTheappropriatemotorvoltagedependsupon thedesiredRPMandpowersupplysource.Highermotorvoltagesalsoincreasethemotorcurrentrate.Notethatthemotorstallcurrentmustbelessthantheinternallimitoutputcurrent,IOCP, toavoidfailureswhenthemotorstartsup.

Supply CapacitorIt issuggestedtouseatleasta10μFvaluecapacitorforC1.Therearetwomainfunctionsforthiscapacitor.Firstly, itabsorbs theenergyreleasedby themotortoreduceanyovershootvoltagedamage.Secondly,

itprovidesa transientpowersource to themotor tocompensateforthebatteryresponsetimeorforlongconnectingwireeffectswhenthemotorstartsuporforfastcontrolswitchingbetweenforwardandreversemodes.

Motor Bypass CapacitorThebypasscapacitor,CM,providesthefastflywheelpathtoreleasetheinductiveenergyof themotor.Inmostapplications, thecapacitancevalue isset toavalueof0.1μF.Usually thiscapacitor is internallycontained within the motor and not requiredexternally. Insomeapplications,especially in lowspeedmotors, the large internalmotor resistorconnectedwiththebypasscapacitor inparallelmayresult in an instantaneous large currentwhen themotorstartsup.ItmayhowevertriggerafaultyOCP/OSPreactionwhichwill fail tostartup themotor.There are twoways to solve this phenomenon:decreasethebypasscapacitorvalueoradda47Ωto100Ωresistorinserieswiththebypasscapacitor.

Layout Consideration GuideToreducetheproblemswithconductednoise, therearesomeimportantpointstonotesonthePCBlayout.

1.TheinputcapacitorC1mustbeplacedclosetotheVDDpin.

2.Thebypasscapacitorisoptionalandshouldbeplacedclosetothemotorside.

3.EnsurethatthepowerroutingpathsuchasVDD,OUT1,OUT2andPGNDisaswideaspossible.

Rev. 1.00 9 November 07, 2017

HT7K1201

Thermal ConsiderationThemaximumpowerdissipationdependsupon thethermal resistanceof the ICpackage,PCB layout,rateofsurroundingairflowanddifferencebetweenthejunctionandambienttemperature.Themaximumpowerdissipationcanbecalculatedbythefollowingformula:

PD(MAX)=(TJ(MAX)–Ta)/θJA(W)

whereTJ(MAX) is themaximumjunctiontemperature,TaistheambienttemperatureandθJAisthejunction-to-ambientthermalresistanceofICpackage.

Formaximum operating rating conditions, themaximumjunctiontemperatureis150°C.However,it’srecommendedthatthemaximumjunctiontemperaturedoesnotexceed125°Cduringnormaloperation tomaintainhighreliability.Thede-ratingcurveof themaximumpowerdissipationisshowbelow:

PD(MAX)=(150°C–25°C)/(220°C/W)=0.568W

Fora fixedTJ(MAX)of150°C, themaximumpowerdissipation depends upon the operating ambienttemperatureandthepackage'sthermalresistance,θJA.Thede-ratingcurvebelowshowstheeffectofrisingambienttemperatureonthemaximumrecommendedpowerdissipation.

25 50 75 100 1250

0.2

0.4

0.568

0.8

0

Ambient Temperature (oC)

Max

imum

Pow

er D

issi

patio

n (W

)

SOT23-6

85

1.0

150

Application CircuitsHT7K1201

M

OUT1

OUT2

IN1

VDD

GND

IN2MCU

1.8V to 6VOUT1

OUT2

*C1

VDD

*CM

Note:*ThecapacitancevalueofC1isdeterminedbyapplication–aminimumrecommendedvalueisgreaterthan10μF.

*CMisoptional-atypicalvalueis0.1μF.*Themotorstallcurrentshouldbelessthantheovercurrentprotectionthreshold,IOCP.

Rev. 1.00 10 November 07, 2017

HT7K1201

Package Information

Notethat thepackageinformationprovidedhereisforconsultationpurposesonly.Asthis informationmaybeupdatedatregularintervalsusersareremindedtoconsulttheHoltekwebsiteforthelatestversionofthePackage/CartonInformation.

Additionalsupplementaryinformationwithregardtopackagingislistedbelow.Clickontherelevantsectiontobetransferredtotherelevantwebsitepage.

• PackageInformation(includeOutlineDimensions,ProductTapeandReelSpecifications)

• TheOperationInstructionofPackingMaterials

• Cartoninformation

Rev. 1.00 11 November 07, 2017

HT7K1201

SOT23-6 Outline Dimensions

H

SymbolDimensions in inch

Min. Nom. Max.A — — 0.057

A1 — — 0.006A2 0.035 0.045 0.051b 0.012 — 0.020C 0.003 — 0.009D — 0.114 BSC —E — 0.063 BSC —e — 0.037 BSC —

e1 — 0.075 BSC —H — 0.110 BSC —L1 — 0.024 BSC —θ 0° — 8°

SymbolDimensions in mm

Min. Nom. Max.A — — 1.45

A1 — — 0.15A2 0.90 1.15 1.30b 0.30 — 0.50C 0.08 — 0.22D — 2.90 BSC —E — 1.60 BSC —e — 0.95 BSC —

e1 — 1.90 BSC —H — 2.80 BSC —L1 — 0.60 BSC —θ 0° — 8°

Rev. 1.00 12 November 07, 2017

HT7K1201

Copyright© 2017 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.