Moor SLA7075M, SLA7076M, Daa Shee 28210.05B Moor Driver IC Family The SLA7075M, SLA7076M, moor driver ICs feaure 2-phase sepper unipolar drivers. The clock-in ype inpu inerface allows simplified conrol logic, and opions for buil-in sense curren deecion and load circui shor or open proecion (paen pending) provide lower loss, and lower hermal resisance. All producs in he SLA7070M series are pincompaibile, supporing rapid design of applicaion varians. The buil-in exciaion disribuion circui (sequencer) allows moor conrol using only he CLOCK signal for simple operaions (roae/sop), wih moor speed conrol by frequency inpu ino CLOCK pin. This eliminaes logic signal lines required for convenional phase-inpu mehods, and reduces demand on heavily-used CPUs. Conac Allegro for applicaion informaion and addiional informaion on device performance and logic. ABSOLUTE MAXIMUM RATINGS AT T A = 25 C Load (Moor) Supply Volage, V M... 46 V Main Power Supply Volage, V BB... 46 V Logic Supply Volage, V DD... 7 V Oupu Curren, I OUT SLA7075M...1.0 A SLA7076M...1.5 A SLA7077M...2.0 A SLA7078M...3.0 A Logic Inpu Volage, V IN... 0.3 o V DD +0.3 V REF Inpu Volage, V REF... 0.3 o V DD +0.3 V Sense Volage, V SIn w < 1 μs is no considered...±2 V Power Dissipaion, P D Wihou hea sink...4.7 W Juncion Temperaure, T J... 150 C Ambien Temperaure, T A... 20 o 85 C Sorage Temperaure, T sg... 30 o 150 C FEATURES AND BENEFITS Feaures Power supply volages, V BB : 46 V(max.), 10 o 44 V normal operaing range Logic supply volages, V DD : 3.0 o 5.5 V Maximum oupu currens: 1 A, 1.5 A, 2 A, 3 A Buil-in sequencer Simplified clock-in sepping conrol Microsepping a full-, half-, quarer-, eighh-, and sixeenh-seps Buil-in sense resisor, R SIn All varians are pin-compaible for enhanced design flexibiliy ZIP ype 23-pin molded package (SLA package) Self-exciaion PWM curren conrol wih fixed off-ime; off-ime adjused auomaically by sep reference curren raio (3 levels) Buil-in synchronous recifying circui reduces losses a PWM off Synchronous PWM chopping funcion prevens moor noise in Hold mode Sleep mode for reducing he IC inpu curren in sand-by sae Buil-in proecion circuiry agains moor coil opens/shors opion available Sanken Power Devices from Allegro MicroSysems
Moor PART NUMBERS AND OPTIONS The following are he produc varians and opional feaures available for hese varians of he SLA7070M series. No all combinaions of sandard models and produc opions are available in high-volume producion quaniies. For informaion on produc availabiliy, and assisance wih deermining he IC feaures ha are he bes fi for your applicaion, please conac our sales office or represenaive. NOTE The following abbreviaions are used hroughou his documen o refer o produc varians: PR Produc wih boh Proecion Circuiry and buil-in R SIn opions R Produc wih he buil-in R SIn opion Par Number Proecion Oupu Curren, I OUT (A) Sequencer Blanking Time (μs) Clock Edge SLA7075MR R SIn 1 SLA7075MPR Proecion Circuiry and R SIn SLA7076MR R SIn 1.5 SLA7076MPR Proecion Circuiry and R SIn Microsep 1.7 Posiive SLA7077MR R SIn 2 SLA7077MPR Proecion Circuiry and R SIn SLA7078MR R SIn 3 SLA7078MPR Proecion Circuiry and R SIn 2 115 Norheas Cuoff, Box 15036 Worceser, Massachuses 01615-0036 Copyrigh 2005 Allegro MicroSysems, Inc.
Moor SLA7075M, SLA7076M, FUNCTIONAL BLOCK DIAGRAM AND PIN ASSIGNMENTS OuB OuB OuB OuB VBB Rese Clock F/R M3 M2 M1 Mo Flag Ref/Sleep1 VDD OuA OuA OuA OuA 1 2 3 4 14 13 18 6 7 8 9 16 10 15 11 20 21 22 23 MIC Reg. Pre- Driver Proec Sequencer & Sleep Circui Pre- Driver Proec DAC DAC SenseA 5 RSIn + Comp - OSC PWM Conrol Synchro Conrol PWM Conrol Comp + - OSC RSIn 19 SenseB 17 12 For R producs, proecion circuis no buil-in. FLAG pin is no conneced inernally. Sync Gnd Pin No. Symbol Funcions Pin No. Symbol Funcions 1 13 Ref / Sleep1 Inpu for conrol curren and Sleep1 seing OuA Oupu of phase A 2 14 VDD Power supply o logic 3 15 Rese Rese for inernal logic OuA Oupu of phase Ā 4 16 F / R Forward / reverse swich inpu 5 SenseA Phase A curren sensing 17 Sync Synchronous PWM conrol swich inpu 6 Mo Oupu from monior of 2-phase exciaion saus 18 Flag* Oupu from proecion circuis monior 7 M1 19 SenseB Phase B curren sensing 8 M2 Commuaion and Sleep2 seing 20 9 M3 21 OuB Oupu of phase B 10 Clock Sep clock inpu 22 11 VBB Main power supply (for moor) OuB Oupu of phase B 23 12 GND Ground *Flag pin acive on PR producs only; no inernally conneced for R producs. www.allegromicro.com 3
Moor ELECTRICAL CHARACTERISTICS, valid a T A = 25 C, V BB = 24 V, V DD = 5 V, applicable o boh PR and R producs, unless oherwise specified Characerisics Symbol Tes Condiions Min. Typ. Max. Unis Main Power Supply Curren I BB Normal mode 15 ma I BBS Sleep1 and Sleep2 modes 100 μa Logic Power Curren I DD 5 ma MOSFET Breakdown Volage V DSS V BB = 44 V, I DS = 1 ma V Maximum Response Frequency f clk Clock Duy Cycle = 50% 250 khz Logic Supply Volage Logic Supply Curren V IL 0.25 V DD V V IH 0.75 V DD V I IL ±1 μa I IH ±1 μa V REF See pages 6 and 7 V REF Inpu Volage Oupu OFF, Sleep1 mode, I V BBS in specificaion, REFS 2.0 V sequencer = enable DD V REF Inpu Curren I REF ±10 μa V SENSE Volage V REF = 0.1 V o 0.5 V, Sep reference curren SIn V raio: 100% REF 0.03 V REF V REF + 0.03 V Sleep-Enable Recovery Time SE V REF = 2.0 V 1.5 V 100 μs Swiching Time con Clock Oupu ON 2.0 μs coff Clock Oupu OFF 1.5 μs 4 115 Norheas Cuoff, Box 15036 Worceser, Massachuses 01615-0036
Moor SLA7075M, SLA7076M, STEPPING CHARACTERISTICS, applicable o boh PR and R producs; represenaive values from SLA7070M series shown Valid a T A = 25 C, V BB = 24 V, V DD = 5 V, unless oherwise specified Characerisics Symbol Tes Condiions Min. Typ. Max. Unis Sep Reference Curren Raio Mo (Load) Oupu Volage Mode F 100 % Mode E 98.1 % Mode D 95.7 % Mode C 92.4 % Mode B 88.2 % Mode A 83.1 % Mode 9 77.3 % Mode 8 V REF V SIn = 100 %, V REF = 0.1 o 0.5 V 70.7 % Mode 7 63.4 % Mode 6 55.5 % Mode 5 47.1 % Mode 4 38.2 % Mode 3 29 % Mode 2 19.5 % Mode 1 9.8 % V MOL I MOL = 1.25 ma 1.25 V V MOH I MOH = 1.25 ma V DD 1.25 V I MOL 1.25 ma Mo (Load) Oupu Curren I MOH 1.25 ma PWM Minimum On-Time on(min) 1.7 μs PWM Off-Time off1 Mode 8 o Mode F 12 μs off2 Mode 4 o Mode 7 9 μs off3 Mode 1 o Mode 3 7 μs www.allegromicro.com 5
Moor OUTPUT CHARACTERISTICS for boh PR and R producs Valid a T A = 25 C, V BB = 24 V, V DD = 5 V, unless oherwise specified Characerisics Symbol Tes Condiions Min. Typ. Max. Unis I OUT = 1.0 A (SLA7075M) Oupu On Resisance R DS(ON) I DS = 1 A 0.7 0.85 Ω Body Diode Forward Volage V f I f = 1 A 0.85 1.1 V I OUT = 1.5 A (SLA7076M) Oupu On Resisance R DS(ON) I DS = 1.5 A 0.45 0.6 Ω Body Diode Forward Volage V f I f = 1.5 A 1.0 1.25 V I OUT = 2.0 A (SLA7077M) Oupu On Resisance R DS(ON) I DS = 2 A 0.25 0.4 Ω Body Diode Forward Volage V f I f = 2 A 0.95 1.2 V I OUT = 3.0 A (SLA7078M) Oupu On Resisance R DS(ON) I DS = 3 A 0.18 0.24 Ω Body Diode Forward Volage V f I f = 3 A 0.95 2.1 V BUILT-IN SENSE RESISTOR CHARACTERISTICS for PR and R producs Valid a T A = 25 C, V BB = 24 V, V DD = 5 V, unless oherwise specified Characerisics Symbol Tes Condiions Min. Typ. Max. Unis I OUT = 1.0 A (SLA7075MPR and SLA7075MR) Sense Resisor Raing* R SIn Tolerance: ±3 % 0.296 0.305 0.314 Ω REF Inpu Volage V REF Wihin specified curren limi 0.1 0.3 V I OUT = 1.5 A (SLA7076MPR and SLA7076MR) Sense Resisor Raing* R SIn Tolerance: ±3 % 0.296 0.305 0.314 Ω REF Inpu Volage V REF Wihin specified curren limi 0.1 0.45 V I OUT = 2.0 A (SLA7077MPR and SLA7077MR) Sense Resisor Raing* R SIn Tolerance: ±3 % 0.199 0.205 0.211 Ω REF Inpu Volage V REF Wihin specified curren limi 0.1 0.4 V I OUT = 3.0 A (SLA7078MPR and SLA7078MR) Sense Resisor Raing* R SIn Tolerance: ±3 % 0.150 0.155 0.160 Ω REF Inpu Volage V REF Wihin specified curren limi 0.1 0.45 V *R SIn includes approximaely 5 mω circui resisance in addiion o he resisance of he resisor iself. 6 115 Norheas Cuoff, Box 15036 Worceser, Massachuses 01615-0036
Moor SLA7075M, SLA7076M, PROTECTION CIRCUIT CHARACTERISTICS* Valid a T A = 25 C, V BB = 24 V, V DD = 5 V, unless oherwise specified Characerisics Symbol Tes Condiions Min. Typ. Max. Unis PR producs Overcurren Sense Volage V OCP Moor coils shored 0.65 0.7 0.75 V FLAG Oupu Volage V FlagL I FLAGL = 1.25 ma 1.25 V V FlagH I FLAGH = 1.25 ma V DD 1.25 V FLAG Oupu Curren I FlagL 1.25 ma I FlagH 1.25 ma *Proecion circuis work on he condiion of V SIn V OCP. RECOMMENDED OPERATING RANGES, applicable o boh PR and R producs, unless oherwise specified Characerisics Symbol Remarks Min Max Unis Load (Moor) Supply Volage V M 44 V Main Power Supply Volage V BB 10 44 V Logic Supply Volage V DD han ±0.5 V o avoid malfuncioning in 3.0 5.5 V Surge volage a VDD pin should be less operaion Case Temperaure T C Measured a pin 12, wihou hea sink 90 C ALLOWABLE POWER DISSIPATION PR and R Producs 5 Allowable Power Dissipaion, P D (W) 4 3 2 1 j-a= 26.6 /W 0 0 10 20 30 40 50 60 70 80 90 Ambien Temperaure, T A ( C) www.allegromicro.com 7
Moor FUNCTIONAL DESCRIPTION PWM Curren Conrol an oupu is enabled and curren flows hrough he moor winding and he curren-sense resisors. When he volage across he The descripion in his secion is applicable o he PR and R producs. curren-sense resisor equals he DAC oupu volage, V TRIP, he Blanking ime curren-sense comparaor reses he PWM lach. This urns off The acual operaing waveforms on he SENSEx pins when he driver for he fixed off-ime, during which he load inducance causes he curren o recirculae for he off-ime period. driving a moor are shown in figure 1. Immediaely afer PWM urns OFF, ringing (or spike) noise on he SENSEx pins is observed for a few μs. Ringing noise can be generaed by various Therefore, if he ringing noise on he sense resisor equals and causes, such as capaciance beween moor coils and inappropriae moor wiring. surpasses V TRIP, PWM urns off. To preven his phenomenon, he blanking ime is se o Each pair of oupus is conrolled by a fixed off-ime (7 o 12 μs, depending on sepping mode) PWM curren-conrol circui ha limis he load curren o a desired value, I TRIP. Iniially, period righ afer PWM urns on (figure 2). override signals from he curren-sense comparaor for a cerain Expanded Time Scale Ou I TRIP 0 Ou 5 μs/div. 500 Figure 1. Operaing waveforms on he SENSEx pins during PWM chopping A PWM Pulse Widh ON OFF (Fixed) I TRIP 0 A Blanking Time Figure 2. SENSEx pins paern during PWM conrol 8 115 Norheas Cuoff, Box 15036 Worceser, Massachuses 01615-0036
Moor SLA7075M, SLA7076M, PWM Off Period The PWM off-ime for he SLA7070M series is conrolled as a fixed ime by an inernal oscillaor. I also is swiched in 3 levels by curren proporion (see he Elecrical Characerisics able). In addiion, he SLA7070M series provide a funcion ha decreases losses occurring when he PWM urns off. This funcion dissolves back EMF sored in he moor coil a MOSFET urn-on, as well as a PWM urn-on (synchronous recificaion operaion). Figure 3 shows he difference in back EMF generaive sysem beween he SLA7060M series and SLA7070M series. The SLA7060M series performs on off operaions using only he MOSFET on he PWM-on side, bu he SLA7070M series also performs on off operaions using only he MOSFET on he PWM-off side. To preven simulaneous swiching of he MOS- FETs a synchronous recificaion operaion, he IC has a dead ime of approximaely 0.5 μs. During dead ime, he back EMF flows hrough he body diode on he MOSFET. SLA7060M Series V BB SLA7070M Series V BB I on I off I on I off Sepper Moor Sepper Moor Back EMF a Dead Time V S RSEx V S RSIn +V PWM On PWM Off PWM On +V PWM On PWM Off PWM On Dead Time Dead Time FET Gae 0 FET Gae 0 Signal Signal V REF V REF V S V S 0 0 Figure 3. Synchronous recificaion operaion. During Dead Time, he Back EMF flows hrough he body diode of he MOSFET www.allegromicro.com 9
Moor Proecion Funcions: PR Types The PR ypes of he SLA7070M series include a moor coil shor-circui proecion circui and a moor coil open proecion circui. They are described in his secion. Moor Coil Shor-Circui Proecion (Load Shor) Circui This proecion circui, embedded in he SLA7070M series, begins o operae when he device deecs an increase in he volage level on he sense resisor, V SIn. The volage a which moor coil shor-circui proecion sars is operaion, V OCP, is se a approximaely 0.7 V. The oupu is disabled a he ime he proecion circui sars. In order for he moor coil shor-circui proecion circui o operae, V SIn mus be greaer han V OCP. Overcurren ha flows wihou passing he sense resisor is undeecable. To resume he circui afer proecion operaes, VDD mus be cycled. Moor Coil Open Proecion Deails of his funcions is no disclosed ye due o our paen policy. V M Coil Shor Circui Coil Shor Circui +V Normal Operaion Oupu Disable Sepper Moor V OCP V REF V S V S RSIn 0 Figure 4. Moor coil shor circui proec circui operaion. Overcurren ha flows wihou passing he sense resisor is undeecable. To recover he circui afer proecion operaes, VDD mus be cycled and sared up again. 10 115 Norheas Cuoff, Box 15036 Worceser, Massachuses 01615-0036
Moor SLA7075M, SLA7076M, PACKAGE OUTLINE DRAWING, SLA-23 PIN 31 ±0.2 24.4 ±0.2 16.4 ±0.2 Gae Flash φ3.2 ±0.15 x 3.8 4.8 ±0.2 1.7 ±0.1 φ3.2 ±0.15 Branding XXXXXXXX XXXX X 9.9 ±0.2 12.9 ±0.2 16 ±0.2 (Fin) 5 ±0.5 2.45 ±0.2 (Base Measuremen) 4-(R1) R-end 9.5 +1-0.5 0.65 +0.2-0.1 0.55 +0.2-0.1 22 P1.27 ±0.5 = 27.94 ±0.1 (Tip Measuremen) (4.3) 4.5 ±0.7 (Tip Measuremen) 31.3 ±0.2 (Includes Mold Flash) 1 3 5 7 9 11 2 4 6 8 10 12 13 14 15 16 17 18 19 20 21 22 23 Terminal core maerial: Cu Terminal reamen: Ni plaing and solder dip Leadform: 2151 Dimensions in millimeers Branding: 1s line, ype: SLA707xMR 2nd line-lef, lo: YMDD Where: Y is he las digi of he year of manufacure M is he monh (1 o 9, O, N, D) DD is he 2-digi dae 2nd line-righ, subype: P for Proecion Circuiry opion; oherwise, blank Leadframe plaing Pb-free. Device composiion includes high-emperaure solder (Pb >85%), which is exemped from he RoHS direcive. www.allegromicro.com 11
Moor PACKING SPECIFICATIONS Plug a each end of ube 8 31 580 18 Devices 18 Devices per ube 20 Tubes 3 Layers 1080 Devices per caron 130 3 Layers 185 20 Tubes 610 Dimensions in mm 12 115 Norheas Cuoff, Box 15036 Worceser, Massachuses 01615-0036
Moor WARNING These devices are designed o be operaed a lehal volages and energy levels. Circui designs ha embody hese componens mus conform wih applicable safey requiremens. Pre cau ions mus be aken o preven accidenal conac wih power-line poenials. Do no connec ground ed es equipmen. The use of an isolaion ransformer is recommended during circui developmen and breadboarding. The producs described herein are manufacured in Ja pan by Sanken Elecric Co., Ld. for sale by Allegro MicroSysems, Inc. Sanken and Allegro reserve he righ o make, from ime o ime, such de par ures from he deail spec i fi ca ions as may be re quired o per mi improve mens in he per for mance, reliabiliy, or manufacurabiliy of is prod ucs. Therefore, he user is cau ioned o verify ha he in for ma ion in his publicaion is curren before placing any order. When using he producs described herein, he ap pli ca bil i y and sui abil i y of such producs for he inended purpose shall be reviewed a he users responsibiliy. Alhough Sanken underakes o enhance he qualiy and reliabiliy of is prod ucs, he occurrence of failure and defec of semi con duc or producs a a cerain rae is in ev i a ble. Users of Sanken producs are requesed o ake, a heir own risk, prevenaive measures including safey design of he equipmen or sysems agains any possible injury, deah, fires or damages o sociey due o device failure or malfuncion. Sanken producs lised in his publicaion are designed and inended for use as componens in general-purpose elecronic equip men or apparaus (home ap pli anc es, office equipmen, ele com mu ni ca ion equipmen, measuring equipmen, ec.). Their use in any applicaion requiring radiaion hardness assurance (e.g., aero space equipmen) is no suppored. When considering he use of Sanken producs in ap pli ca ions where higher reliabiliy is re quired (ransporaion equipmen and is conrol sysems or equip men, fire- or burglar-alarm sysems, various safey devices, ec.), conac a company sales represenaive o discuss and obain wrien confirmaion of your specificaions. The use of Sanken producs wihou he wrien consen of Sanken in applicaions where ex reme ly high reliabiliy is required (aerospace equipmen, nuclear power-conrol saions, life-suppor sysems, ec.) is sricly prohibied. The informaion in clud ed herein is believed o be accurae and reliable. Ap pli ca ion and operaion examples described in his publicaion are given for reference only and Sanken and Allegro assume no re spon si bil i y for any in fringe men of in dus ri al propery righs, inellecual propery righs, or any oher righs of Sanken or Allegro or any hird pary ha may resul from is use. 1234 13 115 Norheas Cuoff, Box 15036 Worceser, Massachuses 01615-0036