Monolithic Digital IC
LB1836M
Overview
Low-Saturation Bidirectional Motor Driver for Low-Voltage Drive The LB1836M is a low-saturation two-channel bidirectional motor driver IC for use in low-voltage applications. The LB1836M is a bipolar stepper-motor driver IC that is ideal for use in printers, FDDs, cameras and other portable devices.
Features
• Low voltage operation (2.5V min)
• Low saturation voltage (upper transistor + lower transistor residual voltage ; 0.40V typ at 400mA). • Parallel connection (Upper transistor + lower transistor residual voltage ; 0.5V typ at 800mA). • Separate logic power supply and motor power supply • Brake function
• Spark killer diodes built in
• Thermal shutdown circuit built in • Compact package (14-pin MFP)
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter Symbol Maximum supply voltage
VCC max VS max
Output supply voltage Input supply voltage
VOUT VIN Pd max Topr Tstg
Conditions
-0.3 to +10.5-0.3 to +10.5VS + VSF-0.3 to +10
1.0800-40 to +85-55 to +150
V V V V
A mW °C °C
Ratings Unit GND pin flow-out current IGND Per channel Allowable power dissipation Operating temperature Storage temperature
* Mounted on a board.
* Mounted on a substrate: 30×30×1.5mm3, glass epoxy board.
AnyandallSANYOSemiconductorCo.,Ltd.productsdescribedorcontainedhereinare,withregardto\"standardapplication\intendedfortheuseasgeneralelectronicsequipment(homeappliances,AVequipment,communicationdevice,officeequipment,industrialequipmentetc.).Theproductsmentionedhereinshallnotbeintendedforuseforany\"specialapplication\"(medicalequipmentwhosepurposeistosustainlife,aerospaceinstrument,nuclearcontroldevice,burningappliances,transportationmachine,trafficsignalsystem,safetyequipmentetc.)thatshallrequireextremelyhighlevelofreliabilityandcandirectlythreatenhumanlivesincaseoffailureormalfunctionoftheproductormaycauseharmtohumanbodies,norshalltheygrantanyguaranteethereof.Ifyoushouldintendtouseourproductsforapplicationsoutsidethestandardapplicationsofourcustomerwhoisconsideringsuchuseand/oroutsidethescopeofourintendedstandardapplications,pleaseconsultwithuspriortotheintendeduse.Ifthereisnoconsultationorinquirybeforetheintendeduse,ourcustomershallbesolelyresponsiblefortheuse.SpecificationsofanyandallSANYOSemiconductorCo.,Ltd.productsdescribedorcontainedhereinstipulatetheperformance,characteristics,andfunctionsofthedescribedproductsintheindependentstate,andarenotguaranteesoftheperformance,characteristics,andfunctionsofthedescribedproductsasmountedinthecustomer'sproductsorequipment.Toverifysymptomsandstatesthatcannotbeevaluatedinanindependentdevice,thecustomershouldalwaysevaluateandtestdevicesmountedinthecustomer'sproductsorequipment.31110 SY / 82207 MS / 71807 MS 20070709-S00001 / 70407 MS PC 20070611-S00003 / 21097HA(II) / D2293 / O0693(US) No.3947-1/6
http://oneic.com/
LB1836M
Allowable Operating Ranges at Ta = 25°C
Parameter Symbol Supply voltage
VCC VS
Input “H”-level voltage Input “L”-level voltage
VIH VIL
Conditions
Ratings
2.5 to 9.01.8 to 9.01.8 to 9.0-0.3 to +0.7
Unit V V V V
Electrical Characteristics at Ta = 25°C, VCC = VS = 3V
Parameter Symbol Supply current
Conditions
Unit
min typ max Ratings
ICC0 VIN1, 2, 3, 4 = 0V, ICC + IS 0.1 10μA
ICC1 VIN1 = 3V, VIN2, 3, 4 = 0V, ICC + IS 14 20mA Output saturation voltage (upper + lower)
VOUT1 IOUT = 200mA VOUT2 IOUT = 400mA
VOUT3 IOUT = 400mA, Parallel connection VOUT4 IOUT = 800mA, Parallel connection
Output sustain voltage Input current Spark killer diode Reverse current Forward voltage
IS (leak) VSF
VCC1, 2 = 9V IOUT = 400mA
301.7
μA V
VO (SUS)
IIN
IOUT = 400mA VIN = 2V, VCC = 6V
9
0.20 0.40 0.25 0.50
800.280.600.350.70
V V V V V μA
35mA ICC2 VIN1, 2 = 3V, VIN3, 4 = 0V, ICC + IS 22
Package Dimensions
unit : mm (typ) 3111A 8.0 148 70.15 (1.0)11.00.35 SANYO : MFP14S(225mil)
Pin Assignment GNDIN3 1413 12 VCCIN1
4.46.40.630.1(1.5)1.7MAX1000Pd max -- TaSpecified board : 30×30×1.5mm3 glass epoxyAllowable power dissipation, Pd max -- mW8006004004202000ñ 40ñ 2002040608085100Ambient temperature, Ta -- °COUT312VS211OUT410IN49Vcont8LB1836M3OUT14VS15OUT26IN27GNDTop viewNote) Ground both GND pins.
No.3947-2/6
http://oneic.com/
LB1836M
Block Diagram
VCCVS2VS1
10μFIN1
ControllerMOUT1OUT2IN2
Thermal shutdownControllerIN3OUT3MOUT4IN4
GNDGND
Truth Table
IN1/3 IN2/4 OUT1/3 OUT2/4 Mode H L H L Forward L H L H Reverse H H L L Brake L L OFF OFF Standby
No.3947-3/6
http://oneic.com/
LB1836M
Design Notes
If large current flows on the power supply (VS) line and the GND line, then in some applications and layouts, misoperation due to line oscillation may result.
The modes during which large current flows are as follows :
• Motor surge current when the DC motor starts up or when it shifts rotation directions (forward ↔ reverse).
• Passthrough current generated within the IC when shifting rotation directions (forward ↔ reverse) or when shifting from forward/reverse rotation to braking, or vice versa.
The following points should be kept in mind regarding the pattern layout :
• Keep the wiring lines thick and short in order to reduce wiring inductance between the power supply (VS) and GND. • Insert a passthrough capacitor near the IC. (Maximum effect is obtained by inserting the passthrough capacitor between VS and the pin 7 GND at the closest distance possible.
• If the CPU and the LB1836M are mounted on separate boards and the difference between the ground potential of each board is large, install resistors of about 10kΩ in series between the CPU and the LB1836M inputs.
Vcont pin
VCCVS
OUT
M
IDOUT
300Ω
INVZ VZ ID = r (= constant)
Vcont
As shown in the above diagram, the Vcont pin outputs the voltage of the band gap Zener VZ + VF (=1.93V). In normal use, this pin is left open.
The drive current ID is varied by the Vcont voltage. However, because the band gap Zener is shared, it functions as a bridge.
No.3947-4/6
http://oneic.com/
LB1836M
1.0VO (sat) – IO110IIN – TaVCC = VS = IN = 3V
Output saturation voltage, VO (sat)–V0.8100Input current, IIN–μA0.690ININ210.4800.270001002003004005006000– 40– 20020406080100120140160Output current, IO–mA0.6Ambient temperature, Ta–°C1.0VO (sat) – TaVO (sat) – IOOutput saturation voltage, VO (sat)–V0.5Output saturation voltage, VO (sat)–VVCC = VS = IN = 3VVO(sat) = total value0.80.40mIO = 40A0.60.3IO = 200mA0.41ch to0.2talPar0.2necon leallltota nctio0.10– 40– 2002040608010012014000100200300400500600700800900Ambient temperature, Ta–°C24IS – TaVCC = VS = IN = 3VOutput current, IO–mA6ICC – TaVCC = VS = IN = 3V20516BreCurrent drain, ICC–mACurrent drain, IS–mAak4Brea3k128ForwardReverse2ForwardReverse410– 40– 200204060801001201401600– 40– 20020406080100120140160Ambient temperature, Ta–°C400Ambient temperature, Ta–°C28IIN – VINVCC = VS = 3VIN1IN2IN3IN4ICC – VCCVS = IN = 3VBreak24Input current, IIN–μA300Current drain, ICC–mA201620012seeverR/draForw1008400Standby0123456710110123456710Input voltage, VIN–VSupply voltage, VCC–VNo.3947-5/6
http://oneic.com/
LB1836M
2420IS – VSVCC = IN = 3VBreakCurrent drain, IS–mA1612Forward/Reverse840Standby012345671011Supply voltage, VS–VSANYOSemiconductorCo.,Ltd.assumesnoresponsibilityforequipmentfailuresthatresultfromusingproductsatvaluesthatexceed,evenmomentarily,ratedvalues(suchasmaximumratings,operatingconditionranges,orotherparameters)listedinproductsspecificationsofanyandallSANYOSemiconductorCo.,Ltd.productsdescribedorcontainedherein.SANYOSemiconductorCo.,Ltd.strivestosupplyhigh-qualityhigh-reliabilityproducts,however,anyandallsemiconductorproductsfailormalfunctionwithsomeprobability.Itispossiblethattheseprobabilisticfailuresormalfunctioncouldgiverisetoaccidentsoreventsthatcouldendangerhumanlives,troublethatcouldgiverisetosmokeorfire,oraccidentsthatcouldcausedamagetootherproperty.Whendesigningequipment,adoptsafetymeasuressothatthesekindsofaccidentsoreventscannotoccur.Suchmeasuresincludebutarenotlimitedtoprotectivecircuitsanderrorpreventioncircuitsforsafedesign,redundantdesign,andstructuraldesign.IntheeventthatanyorallSANYOSemiconductorCo.,Ltd.productsdescribedorcontainedhereinarecontrolledunderanyofapplicablelocalexportcontrollawsandregulations,suchproductsmayrequiretheexportlicensefromtheauthoritiesconcernedinaccordancewiththeabovelaw.Nopartofthispublicationmaybereproducedortransmittedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandrecording,oranyinformationstorageorretrievalsystem,orotherwise,withoutthepriorwrittenconsentofSANYOSemiconductorCo.,Ltd.Anyandallinformationdescribedorcontainedhereinaresubjecttochangewithoutnoticeduetoproduct/technologyimprovement,etc.Whendesigningequipment,refertothe\"DeliverySpecification\"fortheSANYOSemiconductorCo.,Ltd.productthatyouintendtouse.Information(includingcircuitdiagramsandcircuitparameters)hereinisforexampleonly;itisnotguaranteedforvolumeproduction.Uponusingthetechnicalinformationorproductsdescribedherein,neitherwarrantynorlicenseshallbegrantedwithregardtointellectualpropertyrightsoranyotherrightsofSANYOSemiconductorCo.,Ltd.oranythirdparty.SANYOSemiconductorCo.,Ltd.shallnotbeliableforanyclaimorsuitswithregardtoathirdparty'sintellctualpropertyrightswhichhasresultedfromtheuseofthetechnicalinformationandproductsmentionedabove.This catalog provides information as of March, 2010. Specifications and information herein are subject This catalog provides information as of January, 2007. Specifications and information herein are subject to change without notice.
PS No.3947-6/6
http://oneic.com/
分销商库存信息:
ONSEMI
LB1836M-TLM-E
因篇幅问题不能全部显示，请点此查看更多更全内容