Stepper Motor Driver IC MTD Series Dual Full-bridge PWM Stepper Motor Driver MTD2006G Features ●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 Symbol Rating Unit Output voltage Vmm 35 V Output current IOUT 1.3 A Logic supply Vcc 0〜6 V Logic input VLOGIC 0〜Vcc V Puwer dissipation * PD 2.1 W Storage temperature range Tstg -40〜150 ℃ Maximum Junction temperature Tj 150 ℃ *50.8×50.8×1mm3 Glass Epoxy Board(FR4),200mm2 ■Pin Assignment ■Truth table MTD2006G Vmm A OUT1 NC Rs A NC OUT 2 1 2 3 4 5 6 TOP VIEW 24 23 22 21 20 19 GND OUT 3 NC Rs B NC OUT 4 Vmm B ENA A PHA A CR ALARM Vref A Vs A GND 7 8 9 10 11 12 Cupper Pattern 18 17 16 15 14 13 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 L H Current Decay Mode Fast Slow Vs B Vref B Vcc DECAY PHA B ENA B W1002 Stepper Motor Driver IC MTD2006G ■Electrical Characteristics Va=25℃ ,Vcc=5V unless otherwise specified Symbol Condition MIN TYP MAX Unit Load supply current (2circuit OFF) Parameter Imm(OFF) VENA=5V , Vmm=35V - - 8 ｍA Upper transistor saturation voltage VCE(SAT)H Ic=0.8A - 1.0 1.4 V Lower transistor saturation voltage VCE(SAT)L Ic=0.8A - 1.0 1.4 V Upper transistor leak current IrH Vmm=35V , VOUT=0V - - 10 μA Lower transistor leak current IrL VOUT=35V , VRS=0V - - 10 μA Upper diode forward drop V FH IF=0.8A - 1.3 1.6 V Lower diode forward drop Logic supply current(2circuit ON) Logic supply current(2circuit OFF) V FL IF=0.8A - 1.3 1.5 V Icc(ON) VENA=0V - 25 33 ｍA Icc(OFF) VENA=5V - 19 26 ｍA 2.3 - Vcc V GND - 0.8 V - - 10 μA VPHA/ENA=0V - -100 -150 μA VDEC=0V - -200 -300 μA PHA/ENA/DECAY "H" input voltage VPHA/ENA/DECH PHA/ENA/DECAY "L" input voltage VPHA/ENA/DECL PHA/ENA/DECAY"H"input current IPHA/ENA/DECH VPHA/ENA/DEC=5V IPHA/ENAL IDECL PHA/ENA"L"input current DECAY"L"input current Vref input current Iref Vref=0V - -1 -10 μA Vs input current Is Vs=0V - -1 -10 μA Comparator threshold Vs Vref=0.5V 0.475 0.5 20 0.525 ｋHz V fCHOP Vs Ct=3300pF,Rt=20kΩ Vref=0.5V 0.475 - 20 0.525 - ｋHz kHz tb Ct=3300pF,Rt=20kΩ - 1.35 - μs Chopping frequency Blanking time Vs maximum voltage Vs(max) - - 1.0 V Ir(alm) Valm=5V - - 10 μA Alarm pin sink current Ialm Valm=0.5V - - 2 ｍA Thermal alarm operating temperature TALM - 140 - ℃ Alarm leakage current ■Recommended operation conditions Parameter Symbol Recommendation Unit Junction temperature range Tj -25〜120 ℃ Logic supply Vcc 4.75〜5.25 V Load supply Vmm -5〜31 V ■Thermal resistance Symbol Rating Unit θja 58 ℃/W *50.8×50.8×1mm3 Glass Epoxy Board(FR4),200mm2 Cupper Pattern Shindengen Electric Mfg.Co.Ltd W1002 Stepper Motor Driver IC MTD2006G ■Typical Application Vc c Alarm Feed Back ５V Vcc Out1 Out 2 Vmm A Vmm B Out3 Out4 ALARM ALARM ENA A GATE CIRCUIT ENA B to Out3,4Logic PHA A GATE CIRCUIT CPU or GATE ARRAY DECAY signal PHA B DECAY Vc c BLANK Rt R S Current Sensor ‑ Current ‑ Sensor + + R S Q Vcc OSC Q CR CPU or GATE ARRAY R1 PG LG Ct TAB Vref A Vs A Rs ●Constant chopping current level Ichop = Vref Rs Rs A Rs B Vs B Vref B Rs R2 ●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 MTD2006G ■Outline Drawing (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