SHINDENGEN Stepper Motor Driver ICs MTD Series MTD2006F Dual full-bridge for a bipolar motor Features n Dual full-bridge for a bipolar stepper motor n Constant current control (fixed frequency PWM control) n Current decay selection (correspond to microstepping drive) n Noise cancellation function (no need external RC) n Integrated flywheel and flyback diodes n Cross conduction protection n Overheating alarm function n Surface mount type package with heatsink (HSOP28) HSOP-28 g Absolute maximum ratings / Ta=25℃ Symbol Rating Unit Outout voltage Parameter Vmm 35 V Outout current IOUT 1.3 A Vcc 6 V VLOGIC 0 to Vcc V Logic supply Logic input voltage Power dissipation* Strage temperature range Junction temperature range PT 3 W Tstg -40 to 150 ℃ Tj 150 ℃ *Mounted on glass epoxy board (50.8×50.8×1mm) g Pin assignment GND 8 9 10 11 12 13 14 00181 OUT3 NC Rs B NC OUT4 NC Vmm B SHINDENGEN 1 2 3 4 5 6 7 MTD2006F Vmm A NC OUT1 NC Rs A NC OUT2 g Truth table 28 27 26 25 24 23 22 LG ENA A PHA A CR ALARM Vref A Vs A GND 21 20 19 18 17 16 15 Shindengen Electric Mfg.Co.Ltd ENA A or B PHA A or B OUT 1 or 4 OUT 2 or 3 L L L H L H H L H * OFF OFF *:don't care DECAY Output chopping L Sink+Source chopping H Source chopping Vs B Vref B Vcc DECAY PHA B ENA B LG B 0212 SHINDENGEN Stepper Motor Driver ICs MTD2006F g Electrical characteristics Parameter Ta=25℃,Vcc=5V unless otherwise specified Symbol Condition MIN TYP MAX Unit - - 31 V Output stage Load supply Vmm Load supply current IMM(OFF) Vmm=35V, VENA=5V - - 8 mA Upper transistor saturation drop VCE(sat)H IC=0.8A - 1.0 1.4 V Lower transistor saturation drop VCE(sat)L IC=0.8A - 1.0 1.4 V Transistor leak current IR Vmm=VCEO(SUS) - - 10 µA Upper diode forward drop VFH IF=0.8A - 1.3 1.6 V Lower diode forward drop VFL IF=0.8A - 1.3 1.5 V 4.75 - 5.25 V - 25 33 mA Logic stage Logic supply Vcc Logic supply current (output ON) ICC(ON) VENA=0V Logic supply current (output OFF) ICC(OFF) VENA=5V PHA "H" input voltage VPHAH PHA "L" input voltage VPHAL PHA "H" input current IPHAH VPHA=5V PHA "L" input current IPHAL VPHA=0V ENA "H" input voltage VENAH ENA "L" input voltage VENAL GND ENA "H" input current IENAH VENA=5V - ENA "L" input current IENAL VENA=0V - DECAY "H" input voltage VDECH 2.3 DECAY "L" input voltage VDECL GND DECAY "H" input current IDECH VDEC=5V - DECAY "L" input current IDECL VDEC=0V - Vref input current Iref Vref=0V - Vs input current ISENSE Vs=0V - Comparetor threshold Vs Vref=0.5V Chopping frequency fCHOP Ct=3300pF, Rt=20kΩ Blanking time tb Ct=3300pF, Rt=20kΩ Vs maximum voltage Vs(max) ALARM leak current IR(ALM) VALM=5V ALARM input current IALM VALM=0.5V ALARM operation temperature TALM - 19 26 mA 2.3 - Vcc V GND - 0.8 V - - 10 µA - -100 -150 µA 2.3 - Vcc V - 0.8 V - 10 µA -100 -150 µA - Vcc V - 0.8 V - 10 µA -100 -150 µA -1 -10 µA -1 -10 µA 0.475 0.5 0.525 V - 20 - kHz - 1.35 - µs - - 1.0 V - - 10 µA - - 2 mA - 140 - ℃ g Thermal resistance Symbol Rating Unit θja * 41 ℃/W Shindengen Electric Mfg.Co.Ltd *Mounted on glass epoxy board (50.8×50.8×1mm) 0212 SHINDENGEN Stepper Motor Driver ICs MTD2006F g Internal equation circuit / Typical application Vcc=5V Vcc=5V Alarm Feedback 3 Vcc 7 OUT1 1 OUT2 14 VmmA VmmB 8 OUT3 12 24 OUT4 ALARM 26 18 ENA A PHA A DECAY Vcc=5V BLANK Q Rt R Current Sensor Current Sensor + - 17 DECAY Q R Vcc=5V S OSC CR PHA B 16 + S 25 ALARM ENA B GATE CIRCUIT 27 GATE CIRCUIT CPU or GATE ARRAY 120deg. 140deg. CPU or GATE ARRAY 19 R1 Ct VsA LG A 28 VrefA 23 22 5 RsA PG TAB VsB RsB 10 21 20 VrefB 15 LG B R2 Rs Rs Recommended component values Constant chopping current level Io = Vref Rs Shindengen Electric Mfg.Co.Ltd Chopping frequency f＝ 1 0.75・Ct・Rt Symbol Value Unit Rt 7.5 to 30 kΩ Ct 2200 to 4700 pF R1+R2 ≦10 kΩ 0212 SHINDENGEN Stepper Motor Driver ICs MTD2006F g Outline dimension (Unit : mm) Shindengen Electric Mfg.Co.Ltd 0212 SHINDENGEN Stepper Motor Driver ICs MTD2006F g This device fully meets the reliability and quality control standards described in our company's catalog. If this device is to be used in a situation where its misuse or failure might cause serious injury or death, consult with our company. Reliability and quality control standards for this device are considered adequate when it is used with the following type of end equipment. Standard applications Computers, OA and other office equipment, Communication terminal, Measurement machine tools, Audio-visual, Game and other amusements, Household electric appliances, Personal items, Industrial robot, etc. Special applications where the device may or not be suitable include the following. Transportation and conveyance (cargo loading) equipment, Primary communications equipment, Traffic signal control equipment, Fire and burglary alarms, Various safety devices, Medical equipment, etc. Other special applications where the device reliability is not considered high enough include the following. Atomic power control systems, Aviation equipment, Aerospace equipment, Submarine relay equipment, Life support equipment, etc. g Our company makes a constant effort to improve the quality and reliability of our products. However, it is the customer's responsibility to provide safety. Take the appropriate steps to prevent personal injury, fire, and damage by providing redundancy equipment, fire containment equipment, and devices to protect personnel and equipment from operational mistakes. If you want to any more detail information and design application, please contact sales office regarding any questions you may have. SHINDENGEN ELECTRIC MFG. CO., LTD. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the design of its products. The information included herein is believed to be accurate and reliable. However, SHINDENGEN ELECTRIC MFG. CO., LTD. assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties, which may result from its use. Shindengen Electric Mfg.Co.Ltd 0212