2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M ■General Description October 2005 ■Package----SLA18Pin Combining low-power CMOS logic with high-current, high-voltage power FET outputs, the Series SLA705xM translator/driver provides complete control and drive for a two-phase unipolar stepper motor with internal fixed off time, pulse-width modulation (PWM) control of the output current in a power multi-chip module (PMCM™). The CMOS logic section provides the sequencing logic, direction, full/half-step control, synchronous/asynchronous PWM operation, and a "sleep" function. The minimum CLOCK input is an ideal fit for applications where a complex µP is unavailable or overburdened. TTL or LSTTL may require the use of appropriate pull-up resistors to ensure a proper input-logic high. For PWM current control, the maximum output current is determined by the user's selection of a reference voltage and sensing resistor. The NMOS outputs are capable of sinking up to 1,2 or 3 A and withstanding 46 V in the off state. Ground-clamp and flyback diodes provide protection against inductive transients. Special power-up sequencing is not required. Full-step (2 phase) and half-step operation are externally selectable. Two-phase drive energizes two adjacent phases in each detent position (AB-BC-CD-DA). This sequence mode offers an improved torquespeed product, greater detent torque, and is less susceptable to motor resonance. Half-step excitation alternates between the one-phase and two-phase modes (A-AB-B-BC-C-CD D-DA), providing an eight-step sequence. ■Applications ●PPC ●Printer ●OA Equipment ■Key Specifications ●Motor Supply Voltage (VM)：44V max ●Load Supply Voltage (Vs)：10V～44V ●Logic Supply Voltage (Vcc)：3V～5.5V ●Output Current (Io)：1A(SLA7050M) 2A(SLA7051M) 3A(SLA7052M) ●Output Maximum Voltage (VDSS)：100V min ■Features ●To 3A Output Rating ●Internal Sequencer for Full or Half-Step Operation ●PWM Constant-Current Motor Drive ●Cost-Effective, Multi-Chip Solution ●100 V, Avalanche-Rated NMOS ●Low rDS(on) NMOS Outputs (300 milli-ohms typical) ●Advanced, Improved Body Diodes ●Half-Step and Full-Step Unipolar Drive ●Inputs Compatible with 3.3 V or 5 V Control Signals ●Sleep Mode ●Internal Clamp Diodes Typical Connection Vs=10V～ 44V 1 Vcc=3.0V～5.5V Disable Q1 5 r1 7 CB ＋ マイコン 等 8 11 12 9 3 14 OutA OutA/ Vcc 16 ＋ 18 CA OutB/ OutB NC GA GB NC SLA７０５０ M Clock SLA７０５１ M Sync SLA７０５２ M CW/CCW Full/Half Ref SenseA Gnd 6 r2 Vs 2 4 15 17 SenseB 10 13 RsA RsB S-Gnd Gnd P-Gnd Sanken Electric Co.,Ltd. http://www.sanken-ele.co.jp/en/ 1/14 I03-002EA-051006 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Scope The present specifications shall apply to Sanken 2 Phase Stepper Motor Driver IC,SLA705xM Series. The present specifications shall apply to SLA 705xM Series which is performed RoHS instructions. Lead part solder：Pb free Inner solder：Lead content ＞85% Outline Type Hybrid integrated circuit Structure Plastic molded (transfer mold) Applications To drive a 2 phase stepper motor. (Full or Half Step. PWM Current Control.) Absolute maximum ratings Characteristic Symbol Ratings Unit Motor Supply Voltage VM 46 V Load Supply Voltage VS 46 V Logic Supply Voltage Vcc 7 V SLA7050M 1.0 Output Current Io 2.0 Remarks A SLA7051M SLA7052M 3.0 Logic Input Voltage VIN －0.3～Vcc＋0.3 V REF Input Voltage VREF －0.3～Vcc＋0.3 V Sense Voltage VRs －2～2 V Total Device Dissipation PD 4 20 W W Junction Temperature Tj 150 ℃ Operating Temperature Range Ta －20～85 ℃ Storage Temperature Range Tstg －30～150 ℃ Tw<1μS doesn't contain it. at Ta=25℃ at Tc=25℃ Sanken Electric Co.,Ltd. I03-002EA-051006 2/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Electrical characteristics Recommendable Operating Range Characteristic Symbol Motor Supply Voltage VM Load Supply Voltage VS Logic Supply Voltage Vcc Ratings MIN MAX Unit 44 V 10 44 V 3.0 5.5 V Remarks Please adjust the Vcc surge voltage to 0.5V or less. The control current REF Input Voltage VREF 0.1 1.0 V accuracy decreases in 0.1V or less. Package Temperature Tc 100 ℃ 10Pin temperature （at No Fin） Electrical Characteristic (Ta=25℃,Vs=24V,Vcc=5V Unless Otherwise Noted) Limits TYP Characteristic Symbol Load Supply Current IS ISS MAX 15 100 Logic Supply Current Icc 3 Output Maximum Voltage VDSS FET On-State Resistance RDS(on) 0.3 FET Diode Forward Voltage VSD 0.8 Maximum Clock Frequency Fclock Logic Input Voltage Logic Input Current REF Input Voltage VIL VIH IIL IIH MIN Test Condition mA μA atSLEEPoperates Regularity mA V VS=44V IDSS=1mA 0.5 Ω ID=1A 1.1 V ISD=1A 100 kHz Vcc×0.25 V V μA μA 100 Vcc×0.75 Unit ±1 ±1 VREF 0 1.5 V Stationary current control VREFS 2.0 Vcc V Output OFF(Sleep) REF Input Current IREF ±10 μA Sense Voltage VRs VREF V Sanken Electric Co.,Ltd. I03-002EA-051006 3/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Electrical Characteristic (Ta=25℃,Vs=24V,Vcc=5V Unless Otherwise Noted) Limits TYP Characteristic Symbol PWM OFF Time TOFF 12 μS PWM Minimum ON Time TON(min) 5 μS Sleep-Enable return time TSE Switching Time TONC TOFFC MIN MAX Unit 100 2.5 2.0 Test Condition μS VREF：2.0→1.5V Io：1.5A μS μS Clock→Out Clock→Out Truth table Pin Function Low level High level CW／CCW Forward(CW) Reverse(CCW) Full／Half Full Step Half Step REF Enable Output disable(Sleep) Sync Non synchronous PWM Synchronous PWM Positive Edge Clock Input Logic Timing 10μS(min) Clock CW／CCW & Full／Half 5μS(min) 2μS(min) 2μS(min) 5μS(min) 2μS(min) 2μS(min) Sanken Electric Co.,Ltd. I03-002EA-051006 4/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Timing chart Step 0 2 4 6 0 2 4 2 0 6 5 4 3 2 1 0 7 6 5 6 7 0 1 2 4 6 Vcc Clock CW/CCW F/H OUT_ A OUT_ /A OUT_ B OUT_ /B ・This timing chart is a voltage mark. ・PWM signal for current control is not superimposed on this timing chart. Sanken Electric Co.,Ltd. I03-002EA-051006 5/14 0 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Heat design data Total Power－ΔT indegc 150 Ta=25℃ Air cooling without blower (No Fin) 125 100 ΔT (℃) θj-a=31.25(℃/W) 75 θc-a=27.5(℃/W) 50 ΔTj-a ΔTc-a 25 0 0 1 2 3 Total Power P (W) 4 5 ※The temperature of the case is 10pin. Ta‐P 4.5 Allowable Package Power Dissipation in Watts (W) 4 3.5 3 θj-a=31.25(℃/W) 2.5 2 1.5 1 0.5 0 0 10 20 30 40 50 60 70 Ambient Temperature (℃) 80 90 100 Sanken Electric Co.,Ltd. I03-002EA-051006 6/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Block diagram (Connection diagram) 15 17 OutB 5 OutB/ N.C. 7 GB 14 Vcc 11 12 MIC Clock 4 Vs 2 Full/Half CW/CCW 3 GA N.C. OutA/ OutA 1 16 18 Reg GA OSC GB Sequencer GA/ PWM Control GB/ Synchro Control PWM Control Sleep Control ＋ OSC ＋ － － 6 9 8 10 13 SenseB Gnd Sync Ref SenseA Pin arrangement ,Functional table Symbol Function 1 OutA Phase A Output 2 N.C. No Contact 3 OutA/ Phase A/ Output GA※ 4 Phase A Gate 5 Vcc Logic supply 6 SenseA Phase A current sense 7 Clock Step clock 8 Sync Synchronous PWM control 9 Ref Current reference & Output disable 10 GND GND 11 CW/CCW Forward reverse control 12 Full/Half Full step half step control 13 SenseB Phase B current sense 14 Vs Load supply GB※ 15 Phase B Gate 16 OutB/ Phase B/ Output 17 N.C. No Contact 18 OutB Phase B Output ※The gating signal of MOS FET outputs, and use 4pin and 15pin by the unwiring, please. Pin Number Sanken Electric Co.,Ltd. I03-002EA-051006 7/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Example application circuit Vs=10V～ 44V 1 Vcc=3.0V～ 5.5V Disable Q1 5 r1 7 CB ＋ マイコン 等 8 11 12 9 3 Out Vcc A OutA/ Clock Sync CW/ CCW Full/Half Ref SenseA 6 r2 14 Gnd CA Out B NC GA GB NC SLA7050M SLA7051M SLA7052M 10 ＋ 18 OutB/ Vs RsA S-Gnd 16 2 4 15 17 SenseB 13 RsB Gnd Reference constant Rs=0.1～2Ω(Loss attention P≒Io2×Rs) R1=10kΩ R2=5.1kΩ(VR) P-Gnd CA=100μF／50V CB=10μF／10V Q1： ☆Be careful of especially the noise on Vcc line. If the noise on Vcc line exceeds 0.5V, a product may incorrect-operate. ☆When you do not use Logic inputs (CW/CCW and F/H, Sync), please be sure to connect with Vcc or GND. ☆To minimize the effect of system ground I･R drops on the logic and reference input signals, Ground pin should have a low-impedance return to system groud. ☆2pin,4pin,15pin and 17pin are No Contact. Sanken Electric Co.,Ltd. I03-002EA-051006 8/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Package informationｓ Package type and physical dimensions a b a. Type Number Dimensions in mm SLA705xM b. Lot Number 1st letter The last digit of year 2nd letter Month 1～9 月：Arabic Numerals 10 月 ：O 11 月 ：N 12 月 ：D (1 to 9 for Jan. to Sept. O for Oct. N for Nov. D for Dec.) 3rd &4th letter day 01～31： Arabic Numerals Appearance The body shall be clean and shall not bear any stain, rust or flaw. Marking The type number and lot number shall be clearly marked in white. Sanken Electric Co.,Ltd. I03-002EA-051006 9/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Packing specifications 31 580 ・A rubber stopper is provided on both ends of the stick. ・18 pieces in X direction (Maximum 18 pieces in one stick) 8 X 130 610 ・20 sticks in Y direction 3 sticks in Y direction 185 Z ・18pieces×20×3=1080pieces(Max.) Y Dimensions in mm Sanken Electric Co.,Ltd. I03-002EA-051006 10/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Cautions and warnings The calculation of control current SLA705xM Series control current Io is calculated as follow. Io＝VREF／Rs REF Voltage range is 0.1V～1.0V ※When the REF<0.1V, the accuracy of control current is reduce. Moreover, if REF voltage is set up more than 2.0V, all outputs will be in OFF state. Installation to a heat sink 1)Recommended Clamping Torque (to External Heat sink) 0.490～0.822N･m 2)Recommended Silicone ｛SHIN-ETSU CHEMICAL｝ G746 YG6260 ｛GE TOSHIBA SILICONES｝ SC102 ｛DOW CORNING TORAY SILICONE｝ Notice This driver has C-MOS inputs. Please notice as following contents. ・When static electricity is a problem, care should be taken to properly control the room humidity. This is particularly true in the winter when static electricity is most troublesome. ・Care should be taken with device leads and with assembly sequencing to avoid applying static charges to IC leads. PC board pins should be shorted together to keep them at the same potential to avoid this kind of trouble. Sanken Electric Co.,Ltd. I03-002EA-051006 11/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 <Worldwide Contacts> Asia Pacific China Sanken Electric Hong Kong Co., Ltd. Suite 1026 Ocean Centre, Canton Road, Tsimshatsui, Kowloon, Hong Kong Tel: 852-2735-5262 Fax: 852-2735-5494 Sanken Electric (Shanghai) Co., Ltd. Room3202, Maxdo Centre, Xingyi Road 8, Changning district, Shanghai, China Tel: 86-21-5208-1177 Fax: 86-21-5208-1757 Taiwan Sanken Electric Co., Ltd. Room 1801, 18th Floor, 88 Jung Shiau East Road, Sec. 2, Taipei 100, Taiwan R.O.C. Tel: 886-2-2356-8161 Fax: 886-2-2356-8261 India Saket Devices Pvt. Ltd. Office No.13, First Floor, Bandal - Dhankude Plaza, Near PMT Depot, Paud Road, Kothrud, Pune - 411 038, India Tel: 91-20-5621-2340 91-20-2528-5449 Fax: 91-20-2528-5459 Japan Sanken Electric Co., Ltd. Overseas Sales Headquaters Metropolitan Plaza Bldg. 1-11-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-0021, Japan Tel: 81-3-3986-6164 Fax: 81-3-3986-8637 Korea Sanken Electric Korea Co., Ltd. Mirae Asset Life Bldg. 6F, 168 Kongduk-dong, Mapo-ku, Seoul, 121-705, Korea Tel: 82-2-714-3700 Fax: 82-2-3272-2145 Singapore Sanken Electric Singapore Pte. Ltd. 150 Beach Road, #14-03 The Gateway West, Singapore 189720 Tel: 65-6291-4755 Fax: 65-6297-1744 Sanken Electric Co.,Ltd. I03-002EA-051006 12/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 Europe United Kingdom Sanken Power Systems (UK) Limited Pencoed Technology Park, Pencoed, Bridgend CF35 5HY. UK Tel: 44-1656-869-100 Fax: 44-1656-869-162 North America United States Allegro MicroSystems, Inc. 115 Northeast Cutoff, Worcester, Massachusetts 01606, U.S.A. Tel: 1-508-853-5000 Fax: 1-508-853-3353 Allegro MicroSystems, Inc. (Southern California) 14 Hughes Street, Suite B105, Irvine, CA 92618 Tel: 1-949-460-2003 Fax: 1-949-460-7837 Sanken Electric Co.,Ltd. I03-002EA-051006 13/14 2-Phase Unipolar Stepper Motor Driver SLA7050M/7051M/7052M October 2005 CAUTION / WARNING ●The information in this publication has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies. ● Sanken reserves the right to make changes without further notice to any products herein in the interest of improvements in the performance, reliability, or manufacturability of its products. Before placing an order, Sanken advises its customers to obtain the latest version of the relevant information to verify that the information being relied upon is current. ● Application and operation examples described in this catalog are quoted for the sole purpose of reference for the use of the products herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual property rights or any other rights of Sanken or any third party which may result from its use. ● When using the products herein, the applicability and suitability of such products for the intended purpose or object shall be reviewed at the users’ responsibility. ● Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure nd defect of semiconductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk, preventative measures including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device failure or malfunction. ● Sanken products listed in this catalog are designed and intended for the use as components in general purpose electronic equipment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). Before placing an order, the user’s written consent to the specifications is requested. When considering the use of Sanken products in the applications where higher reliability is required (transportation equipment and its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), please contact your nearest Sanken sales representative to discuss and obtain written confirmation of your specifications. The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is required (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited. ● Anti radioactive ray design is not considered for the products listed herein. ● This publication shall not be reproduced in whole or in part without prior written approval from Sanken. ●This is notification that you, as purchaser of the products/technology, are not allowed to perform any of the following: 1. Resell or retransfer these products/technology to any party intending to disturb international peace and security. 2. Use these products/technology yourself for activities disturbing international peace and security. 3. Allow any other party to use these products/technology for activities disturbing international peace and security. Also, as purchaser of these products/technology, you agree to follow the procedures for the export or transfer of these products/technology, under the Foreign Exchange and Foreign Trade Law, when you export or transfer the products/technology abroad. Sanken Electric Co.,Ltd. I03-002EA-051006 14/14