MTD2006G

Stepper Motor Driver IC MTD Series MTD2006G Features Dual Full-bridge PWM Stepper Motor Driver ●Dual full bridge for a bipolar stepper motor driver ●Out put current 1.3A , Output Voltage 35V ●Constant current control (Fixed frequency PWM control) ●Built-in flywheel and flyback diodes) ●Noise cancellation function ●Current decay mode ( Fast decay or Slow decay) ●Cross conduction protection ●Overheating alarm ●Surface mount type package with heat sink（HSOP24)   HSOP24 ■Absolute maximum ratings / Ta=25℃ Parameter Output voltage Output current Logic supply Logic input Puwer dissipation * Storage temperature range Maximum Junction temperature *50.8×50.8×1mm3 Glass Epoxy Symbol Vmm IOUT Vcc VLOGIC PD Tstg Tj Rating 35 1.3 0∼6 0∼Vcc 2.1 -40∼150 150 Unit V A V V W ℃ ℃ Cupper Pattern Board(FR4),200mm2 ■Pin Assignment MTD2006G Vmm A OUT1 NC Rs A NC OUT 2 GND OUT 3 NC Rs B NC OUT 4 Vmm B 7 8 9 10 11 12 18 17 16 15 14 13 1 2 3 4 5 6 ■Truth table TOP VIEW 24 23 22 21 20 19 ENA A or B L L H PHA A or B L H ＊ OUT 1 or 4 L H OFF OUT 2 or 3 H L OFF ＊：don't care ENA A PHA A CR ALARM Vref A Vs A GND Vs B Vref B Vcc DECAY PHA B ENA B DECAY L H Current Decay Mode Fast Slow Shindengen Electric Mfg.Co.Ltd W1002 Stepper Motor Driver IC ■Electrical Characteristics MTD2006G Va=25℃ ,Vcc=5V unless otherwise specified Parameter Load supply current (2circuit OFF) Upper transistor saturation voltage Lower transistor saturation voltage Upper transistor leak current Lower transistor leak current Upper diode forward drop Lower diode forward drop Logic supply current(2circuit ON) Logic supply current(2circuit OFF) PHA/ENA/DECAY "H" input voltage PHA/ENA/DECAY "L" input voltage PHA/ENA/DECAY"H"input current PHA/ENA"L"input current DECAY"L"input current Vref input current Vs input current Comparator threshold Chopping frequency Blanking time Vs maximum voltage Alarm leakage current Alarm pin sink current Thermal alarm operating temperature Symbol Imm(OFF) VCE(SAT)H VCE(SAT)L IrH IrL V FH V FL Icc(ON) Icc(OFF) VPHA/ENA/DECH VPHA/ENA/DECL IPHA/ENA/DECH IPHA/ENAL IDECL Iref Is Vs fCHOP Vs tb Vs(max) Ir(alm) Ialm TALM Valm=5V Valm=0.5V VPHA/ENA/DEC=5V VPHA/ENA=0V VDEC=0V Vref=0V Vs=0V Vref=0.5V Ct=3300pF,Rt=20kΩ Vref=0.5V Ct=3300pF,Rt=20kΩ Condition VENA=5V , Vmm=35V Ic=0.8A Ic=0.8A Vmm=35V , VOUT=0V VOUT=35V , VRS=0V IF=0.8A IF=0.8A VENA=0V VENA=5V MIN 2.3 GND 0.475 0.475 TYP 1.0 1.0 1.3 1.3 25 19 -100 -200 -1 -1 0.5 20 20 1.35 140 MAX 8 1.4 1.4 10 10 1.6 1.5 33 26 Vcc 0.8 10 -150 -300 -10 -10 0.525 0.525 1.0 10 2 Unit ｍA V V μA μA V V ｍA ｍA V V μA μA μA μA μA ｋHz V ｋHz kHz μs V μA ｍA ℃ ■Recommended operation conditions Parameter Junction temperature range Logic supply Load supply Symbol Tj Vcc Vmm Recommendation -25∼120 4.75∼5.25 -5∼31 Unit ℃ V V ■Thermal resistance Symbol θja Rating 58 Unit ℃/W *50.8×50.8×1mm3 Glass Epoxy Board(FR4),200mm2 Cupper Pattern Shindengen Electric Mfg.Co.Ltd W1002 Stepper Motor Driver IC ■Typical Application Vc c ５V Vcc Out1 Out 2 Vmm A Vmm B Out3 Out4 ALARM MTD2006G Alarm Feed Back ALARM GATE CIRCUIT CPU or GATE ARRAY ENA A ENA B to Out3,4Logic PHA A DECAY signal CPU or GATE ARRAY GATE CIRCUIT DECAY PHA B Vc c Rt CR BLANK Q OSC R S Current - Sensor + Current Sensor + R S Q Vcc Ct Vref A Vs A Rs A LG TAB PG Rs B Vs B Vref B R1 Rs Rs R2 ●Constant chopping current level Ichop = Vref Rs ●Recommended component values Rt 7.5∼30kΩ Ct 2200∼4700pF R1+R2≦10kΩ ●Chopping frequency f＝ 1 0.75・Ct・Rt Shindengen Electric Mfg.Co.Ltd W1002 Stepper Motor Driver IC ■Outline Drawing MTD2006G (Unit : mm) Shindengen Electric Mfg.Co.Ltd W1002 Stepper Motor Driver IC MTD2006G ! Although we are constantly making every effort to improve the quality and reliability of our products, there nevertheless remains a certain probability that the semiconductor products may occasionally fail or malfunction. Please take careful precautions against product failures or malfunctions to avoid any injuries, fire accidents or social loss by implementing safety designs such as redundancy designs, designs for fi re spread prevention, and designs for preventing malfunctions. Our semiconductor products listed in this document are not designed or manufactured to be used in devices or systems requiring extremely high levels of quality and reliability, or the failure or malfunction of which may directly threaten human lives or cause injury. In the cases where the products are to be used in devices or systems for special applications or devices or systems for specialized applications shown below, always make sure to consult us in advance. Special Applications Transportation devices (automotive, marine, etc.), communication devices for core network, traffic signal devices, fire prevention/anticrime devices, various safety devices, medical devices, etc. Specialized Applications Nuclear power control systems, aircraft and aerospace devices, submarine relay devices, and systems for preserving life, etc. Even if it is not for a special or specialized application, when IC products are to be used for devices or systems that are desired to last for a long period under continuous operation, please make sure to consult our sales representative in advance. ! ● We reserve the right to make any changes to the contents of this manual without prior notice in accordance with modifications to IC products. ● Details of specifications should be exchanged at the adoption of the IC products. ● All information included in this manual is believed to be accurate and reliable. However, our company takes no responsibility for any injury or damage incurred when using the IC products as described in this manual. Neither do we take any responsibility for issues arising from infringement of patent or other rights caused by using this manual. ● The provision of this manual does not guarantee the right to use any third party's patent or other rights, or grant permission to use the patent or other rights of our company. ● No part of this manual may be reproduced or copied without the specific written consent of Shindengen Electric Mfg. Co., Ltd. Shindengen Electric Mfg.Co.Ltd W1002